This will require AD client to be restarted which may take several minutes. CPU utilization for the last 5 seconds and the percent of CPU time spent at the interrupt level. For documentation of commands in Cisco IOS Release To disable the limit, use the no form of this command. To back up system logs, use the backup-logs command in EXEC mode. Exports a server certificate from the server store. Note The copy command is supported only for the local disk and not libe a repository.




Search is currently unavailable due to technical issues. We are working to resolve the problem as quickly as possible. This chapter describes the commands used to troubleshoot a routing device. To troubleshoot, you need to discover, isolate, and resolve the system problems. You can discover problems with the system monitoring commands, isolate problems with the system test pktty including debug commandsand resolve problems by reconfiguring your system with the suite of Cisco IOS software commands.

This chapter describes general fault management commands. For detailed troubleshooting procedures and a variety of scenarios, see the Cisco IOS Internetwork Troubleshooting Guide publication. For complete details on all debug commands, see the Cisco IOS Debug Command Reference. For documentation of commands in Cisco IOS Release To connect to a specific line card for the purpose of executing monitoring and maintenance commands on that line card only, use the attach privileged EXEC command.

To exit from the Cisco IOS software image on the line card and return to the Cisco IOS image on the GRP card, use the exit command. Slot numbers range from 0 to 11 for the Cisco router and 0 to 7 for the Cisco router. If the slot number is omitted, you are prompted for the slot number. This command was added to support the Cisco series Gigabit Switch Routers. You must first use the attach privileged EXEC command to access the Cisco IOS software image on a line card before using line card-specific show EXEC commands.

Alternatively, you can use the execute-on privileged EXEC command to execute a show command on a specific line card. After you connect to the Cisco IOS image on the line card using the attach command, the prompt changes to LC-Slotxwhere x is the slot number of the line card. The commands executed on the line card use the Cisco IOS image on phtty line card. You can also use the execute-on slot privileged EXEC command to execute commands on one or all line cards. Note Do not execute the config EXEC command from the Cisco IOS software image on the line card.

Connects you to a specific managed shelf for the purpose of remotely executing commands on that shelf only. Executes commands remotely on a specific line card, or on all line cards simultaneously. To clear messages from the logging buffer, use the clear logging privileged EXEC command. To perform field diagnostics on a line card, on the Gigabit Route Processor GRPon the Switch Fabric Cards SFCsand on the Clock Scheduler Card CSC in Cisco series Gigabit Switch Routers GSRsuse the diag privileged EXEC command.

To disable field diagnostics on a line card, use the no form of this command. Slot numbers range from 0 to 11 for the Cisco and 0 to 7 for the Cisco router. Slot numbers for the CSC are 16 and 17, and for the FSC are 18, 19, and Optional Initiates an EPROM-based extended power-on self-test EPOST only. By default, only the minimum status messages are displayed on the console. If you specify the optional wait keyword, the Cisco IOS software is not automatically reloaded on the line card after the test completes.

Optional Stops the automatic reloading of the Cisco IOS software on the line card after the completion of the field diagnostic testing. If you use this keyword, you must use the microcode reload slot global configuration command, or manually remove and insert the line card to power it up in the slot so that the GRP will recognize the line card and download the Cisco IOS software image to the line card.

The diag command must be executed from the GRP main console port. Diagnostics will stop and ask you for confirmation before altering the router's configuration. For example, running diagnostics on a SFC or CSC will cause the fabric to go from full bandwidth to one-fourth bandwidth. Bandwidth lie not affected by GRP or line card diagnostics. The fttp diagnostic software image is bundled with the Cisco IOS software and is downloaded automatically from the GRP to the target line card prior to testing.

In normal mode, if a test fails, the title of the failed test is displayed on the console. However, not all tests that are putty ftp command line options xq are displayed. To view all the tests that are performed, use the verbose keyword. After all diagnostic tests are completed on the line card, a PASSED or TEST FAILURE message is displayed. If the line card sends a PASSED message, the Cisco IOS software image on the line card is automatically reloaded unless the wait keyword is specified.

If the line card sends a TEST FAILURE message, the Cisco IOS software image on the line card is not automatically reloaded. If you want to reload the line phtty after it fails diagnostic testing, use the microcode optioons slot global configuration command. Note When you stop the field diagnostic test, the line card remains down that is, in an unbooted state. In most cases, you stopped the testing because you need to remove the line card or replace the line card. If that is not the case, and you want to bring the line card back up that is, onlineyou must use the microcode reload global configuration command or power cycle the line card.

If the line card fails the test, the line card is defective and should be replaced. In future releases comand might not be the case because DRAM and SDRAM SIMM modules might be field replaceable units. For example, if the DRAM test failed you might only need to replace the DRAM on the line card. For more information, refer to the Cisco series installation and configuration guides. After the line card passes all field diagnostic tests, the Cisco IOS software is automatically reloaded on the card.

Before starting the diagnostic tests, you must confirm the request to coommand these tests on the line card because all activity on the line card is halted. In the following example, a user is shown the output when field diagnostics are performed on the line card in slot 3 in verbose mode: Reloads the Cisco IOS image on a line card on the Cisco series with RSP, Cisco series, or Cisco series routers after all microcode configuration commands have been entered.

To xa the name of the core dump file, use the exception core-file global configuration command. To return to the default core filename, use the no form of this command. If you use TFTP to dump the core file to a server, the router will only dump the first 16 MB of the core file. If the router's memory is larger than 16 MB, the whole core file will not be copied to the server.

Therefore, use rcp or FTP to dump the core file. In the following example, a user configures a router to use FTP to dump a core file named dumpfile to the FTP server at Causes the router to create a core dump and reboot when certain memory opitons parameters are violated. Causes the router to create a core dump and reload after a specified number of spurious interrupts.

To disable core dumps, use the no form of this command. The core dump is written to a file named hostname -core on your server, where hostname is the name of the router. You can change the name of the core file by configuring the exception core-file command. This procedure can fail for certain types of system crashes. In putty ftp command line options xq following example, a user configures a router to use FTP to dump a core file to the FTP server at Configures comand remote username to be used when requesting a remote oltions using rcp.

To enable storing of crash information for a line card and optionally specify the type and amount of information stored, use the exception linecard global configuration command. To disable the storing of crash information for the line card, use the no form of this command. The default filename is hostname -core- slot-number for example, ccore Size of the memory to store is 0 to Size of the memory to store can be from 0 to Optional Stores crash information for the receive or transmit silicon queueing engine registers on the line card.

This command is currently supported only on Cisco series Gigabit Switch Routers GSRs. Use the exception linecard global configuration command only when directed by a technical support representative. Only enable options that the technical support representative requests you to enable. Technical support representatives need to be able to look at the crash information from the line card to troubleshoot serious problems on the line card. The crash information contains all the line card memory information including the main memory and transmit and receive buffer information.

In the following example, the user enables the storing of crash information for line card 8. To cause the router to create a core dump and reboot when certain memory size parameters are violated, use the exception memory global configuration command. To disable the rebooting and core dump, use the no form of this command.

If you enter a size that is greater than the free memory, a core dump and router reload is generated after 60 seconds. The exception dump command must be configured in order to generate a core dump file. In the following example, the user configures the router to monitor the free memory. If the amount of free memory falls below putty ftp command line options xq, bytes, the router will dump the core file and reload.

Configures the router to dump putty ftp command line options xq core file to a particular server when the router crashes. To configure the protocol used for core dumps, commmand the exception protocol global configuration command. To configure the router to use the default protocol, use the no form of this command. In the following example, the user putty ftp command line options xq a router to use FTP to dump a core file to the FTP server at To specify the size of the region for the exception-time memory pool, use putty ftp command line options xq exception region-size global configuration command.

To use the default region size, use the no form of this command. The exception memory command must be used to allocate memory to perform a core dump. To configure the router to create a core dump and reload after a specified number of spurious interrupts, use the exception spurious-interrupt command global configuration command. To disable the core dump and reload, use the no form of this command.

If you use TFTP to dump the core dump file to a server, the router will only dump outty first 16 MB of the file. In the following example, the user configures a router to create a core dump with a limit of two spurious interrupts: To execute commands on a line card, use the execute-on privileged EXEC command. Do not use this option; it is used for technical support troubleshooting only. This command was introduced to support Cisco series Gigabit Switch Routers. Use this command to execute a command on one or all line cards to monitor and maintain information on one or more line cards for example, a line card in a specified slot on a dial shelf.

This allows you to issue commands remotely; that is, to issue commands without needing to log in to the line card directly. The all form of the command allows you to issue commands to all the line cards without having to log in to each in turn. Though this command does not have a no form, note that it is possible to use the no form of the remotely executed commands used in this command. Tip This command is useful when used with show EXEC commands such as show versionbecause you can verify and troubleshoot the features found only on a specific line card.

Please note, however, that because not all statistics are maintained on the line cards, the output from some of the show commands might not be consistent. Timesaver Though you can use the attach privileged EXEC command to execute commands on a specific line card, using the execute-on slot command saves you some steps.

For example, first you must use the attach command to connect to the Cisco IOS software running on the line card. Next you must issue the command. With the execute-on slot command, you can perform three steps with one command. In addition, the execute-on all command allows you to perform the same command on all line cards simultaneously. The purpose of the command is to conveniently enable certain commands to be remotely executed on the dial shelf cards from the router without connecting to each line card.

This is the recommended procedure, because it avoids the possibility of adversely affecting a good configuration of a line card in lije process. In general, the purpose of the execute-on command is to provide access to statistical reports from line cards without directly connecting to the dial shelf line cards. Warning Do not use this command to change configurations on dial shelf cards, because such changes will not be reflected in the router shelf.

Using this command makes it possible to accumulate inputs for inclusion in the show tech-support command. The master form of the command can run a designated command remotely on the router from the DSC card. However, using the console on the DSC is not recommended. It is used for technical support troubleshooting only. The show tech-support command for each dial shelf card is bundled into the router shelf's show tech-support command via the execute-on facility.

To log messages to a syslog server host, use the logging global configuration command. To delete the syslog server with the specified address from the list of syslogs, use the no form of this command. By issuing this command more than once, you build a list of syslog servers putty ftp command line options xq receive logging messages. Limits messages logged to the syslog servers based on severity and limits the logging of system messages sent to syslog servers to only those messages at the specified level.

To limit messages logged ophions an internal buffer based on severity, use the logging buffered global configuration command. To cancel the use of the buffer, use the no form of this command. The default form of this command returns the buffer size to the default size. The default size varies by platform. Optional Optikns the logging of messages to the buffer to a specified level.

You can enter the level name or level number. For most platforms, the Cisco IOS software logs messages to the internal buffer. This command copies logging messages to an internal buffer. The buffer is circular in nature, so newer messages overwrite older messages after the buffer is filled. Specifying a level causes messages at that level and numerically lower levels to be logged in an internal buffer. Do not make the buffer size too large because the router could run out of memory for other putty ftp command line options xq.

You can use the show memory EXEC command to view the free processor memory on the router; however, opyions is the maximum available and should not be approached. The default logging buffered command resets the buffer size to commqnd default for the platform. To display the messages that are logged in the buffer, use the show logging EXEC command. The first message displayed is the oldest message in the buffer.

The show logging EXEC command displays the addresses and levels associated with the current logging setup, and any other logging statistics. To disable logging to the console terminal, use the no form of this command. You can enter the level number or level name. Specifying a level causes messages at that level and numerically lower levels to be displayed at the console terminal.

The log keyword takes effect only if the logging console level is set to 6 or 7. If you change the default to a level lower than 6 and specify the log keyword with the IP access list extended command, no information is logged or displayed. In the following example, the user changes the level of messages displayed to the console terminal to alertswhich means alerts and emergencies are displayed: To configure the syslog facility in which system messages are sent, use the logging facility global configuration command.

To revert to the default of local7use the no form of this command. See the Usage Guidelines section of this command reference entry for descriptions of acceptable keywords. In the following example, the user configures the syslog facility to puttu kernel facility type: To limit syslog messages sent to the router's history table and the Simple Network Management Protocol SNMP network management station based on severity, use the logging history global configuration command. To return the logging of syslog messages to the default level, use the no form of this command putty ftp command line options xq the previously configured severity level argument.

Specifies the lowest severity level for system error messag logging. See the Usage Guidelines section of this command for available keywords. Number ccommand the severity level. Logging of system messages of severity levels 0 through 4 emergency, alert, critical, error, lline warning levels ; in other words, "saving level warnings or higher" Sending syslog messages to the SNMP network management station occurs when you enable syslog traps with the snmp-server enable traps global configuration command.

Because SNMP traps are inherently unreliable and much too important to lose, at least one syslog message, the most recent message, is stored in a history table on the router. The history table, which contains table size, message status, and message text data, can be viewed using the show logging history command. The number of messages stored in the table is governed by the logging history size EXEC command.

Specifying a level causes messages at that severity level and numerically lower levels to be stored in the router's history table and sent to the SNMP network management station. For example, specifying the level critical causes messages as the critical 3alert 2and emergency 1 levles to be saved to the logging history table. Note that you can use the level name or the level number as the level argument in this command.

In the following example, the system is initially configured to the default of saving severity qx 4 or higher. The logging history1 command is used to configure the system to save only level 1 alert and level 0 emergency messages to the logging history table. The configuration is then confirmed using the show logging history command.

To change the number of syslog messages stored in the router's history table, use the logging history size global configuration command. To return the number of messages to the default value, use the no form of this command. When the history table is full that is, it contains the maximum number of message entries specified with the logging putty ftp command line options xq size commandthe oldest message entry is deleted from the table to allow the new message entry to be stored. In the following example, the user sets the number of messages stored in the history table to Limits syslog messages sent to the router's history table and the SNMP network management station based on severity.

To log messages to an internal buffer on a line card, use the logging linecard global configuration command. To cancel the use of the internal buffer on the line cards, use the no form of this command. The default is 8 KB. Optional Limits the logging of messages displayed on the console terminal to a specified level. Specifying a message level causes messages at that level and numerically lower levels to be stored in the internal buffer on the line cards.

For example, if you specify a message level of critical, all critical, alert, comand emergency messages will be logged. To display the messages that are logged in the buffer, use the show logging slot EXEC command. The following example enables logging to an internal buffer on the line cards using the default buffer size and logging warning, error, critical, alert, and emergency messages: To limit messages logged to the terminal lines monitors based on severity, use the logging monitor global configuration command.

This command limits the logging messages displayed on terminal lines other than the console line to messages with a level at or above the level argument. To disable logging to terminal lines other than the console line, use the no form of this command. See the Usage Guidelines section for a list of acceptable severity-level keywords. Specifying a level causes messages at that level and numerically lower levels to be displayed to the monitor.

In the following example, the user specifies that only messages of the levels errorscriticalalertsand emergencies be displayed on terminals: To control logging of system messages including error messages or debugging messagesuse the logging on global configuration command. This command sends system messages to a logging process, which logs messages to designated locations asynchronously to the processes that generated the messages.

To disable the logging process, use the no form of this command. The logging process controls the distribution of logging messages to the various destinations, such as the logging buffer, terminal lines, or syslog server. You can turn logging on and off for these destinations individually using the logging bufferedlogging monitorand logging global configuration commands. However, if the logging on command is disabled, no messages will be sent to these destinations.

Only the console will receive messages. Additionally, the logging process logs messages to the console and the various destinations after the processes that generated them have completed. When the logging process is disabled, messages are displayed on the console as soon as they are produced, often appearing in the middle of command output. The logging synchronous line configuration command also affects the displaying of messages to the console. The following example shows command output and message output when logging is enabled.

The ping process gtp before any of the logging information is printed to the console or any other destination. In the following example, logging is disabled. The message output is displayed as messages are generated, causing the debug messages to be interspersed with the message "Type escape sequence to abort. To limit the rate of messages logged per second, use the logging rate-limit command in global configuration mode.

To disable the limit, use the no form of this command. Sets the rate limit for all error and debug messages displayed at optlons console and printer. Severity decreases as the number increases. So, severity level 1 is a more serious problem than severity level 3. Optional Sets the logging severity level. The default for this command is 10 messages logged per second and exclusion of messages of the errors level or lower.

The logging rate-limit command controls the output of messages from the system. Use this command if you want to avoid a flood of output messages. You can select the severity of the output messages and output rate by using the logging rate-limit command. You can use the logging rate-limit command anytime; it will not negatively impact the performance of your system and may improve the system performance by specifying the severities and rates of output messages.

You can use this command with or without the logging synchronous line configuration command. By using the two commands together, you cause all messages of 0, 1, and 2 severity to print and limit the less severe ones lower than 2 to only 10 per second. To specify the source IP address of syslog packets, use the logging source-interface global configuration command.

To remove the source designation, use the no form of this command. To disable synchronization of unsolicited messages and debug output, use the no form of this command. Messages with a severity level equal to or higher than this value are printed asynchronously. Low numbers indicate greater severity and high numbers indicate lesser severity. The default putty ftp command line options xq is 2.

Optional Specifies that all messages are printed asynchronously, regardless of the severity level. The default value is If you do not specify the maximum number of buffers to be queued, the default value of 20 is assumed. Unsolicited messages and debug output is displayed on the console after the prompt for user input is returned.

To keep unsolicited messages and debug output from being interspersed with solicited software output and prompts. After the unsolicited messages are displayed, the console displays the user prompt again. When specifying a severity level number, consider that for the logging system, low numbers indicate greater severity and high numbers indicate lesser severity.

When a message queue limit of a terminal line is reached, new messages are dropped from the line, although these messages might be displayed on other lines. This notice is displayed only on the terminal that lost the messages. It is not sent to any other lines, any logging servers, or the logging buffer. Identifies a specific line for configuration and starts the line configuration command collection mode. Controls logging of system messages and sends debug or error messages to a logging process, which logs messages to designated locations asynchronously to the processes that generated the messages.

To limit messages logged to the syslog servers based on severity, use the logging trap global configuration command. The command limits the logging of system messages sent to syslog servers to only those messages at the specified level. To disable logging to syslog servers, use the no form of this command. See the Usage Guidelines section for a list of acceptable level keywords. The show logging EXEC command displays the addresses and levels associated with the current logging setup. The command output also includes ancillary statistics.

Use the logging and logging trap commands to send messages to a UNIX syslog server. To diagnose basic network connectivity on Apollo, AppleTalk, Connectionless Network Service CLNSDECnet, IP, Novell IPX, VINES, or XNS networks, use the ping privileged EXEC command. Optional Specifies the datagram size. Datagram size is the number of bytes in each ping.

Optional Specifies the timeout interval in seconds. The default is 2 seconds. The optkonsdf-bitrepeatsizesourcetimeoutand validate keywords were added. The ping packet internet groper command sends ISO CLNS echo packets to test the reachability of a remote router over a connectionless Open System Interconnection OSI network. The ping command sends an echo request packet to an address, then awaits a reply. Ping output can help you evaluate path-to-host reliability, delays over the path, and whether the host can be reached or is functioning.

You type the default by simultaneously pressing and releasing the CtrlShiftand 6 keys, and then pressing the X key. Each period indicates that the network server timed out while waiting for a reply. Note Not all protocols require hosts to support pings. For some protocols, the pings are Cisco-defined and are only answered by another Cisco router. After you enter the ping command in privileged mode, the system prompts for one of the following keywords: apolloappletalkclnsdecnetipnovellvinesor xns.

The default protocol is IP. If you enter a commadn name or address on the same line as the ping command, the default action is opptions as appropriate for the protocol type of that name or address. The optional datadf-bitrepeatsizesourcetimeoutand validate keywords can be used to avoid extended ping command output. You can use as many of these oprions as you need, and you can use them in any order after the host-name or system-address arguments.

Prompts for a supported protocol. Enter appletalkclnsipnovellapollovinesdecnetor xns. The default is IP. Prompts for the IP address or host name of the destination node you plan cmomand ping. If you have specified a supported protocol other than IP, enter an appropriate address for that protocol here. The default is none. Prompts for the number of ping packets that will be sent to the destination address. The default is 5 packets.

Allows you to vary the sizes of the echo packets being sent. This capability is useful for determining the minimum sizes of the MTUs configured on the nodes along the path to the destination commans. Packet fragmentation contributing to performance problems can then be reduced. Other characters may appear in the ping output display, depending on the protocol type.

Indicates the percentage of packets successfully commmand back to the router. Anything less than 80 percent is usually considered problematic. To diagnose basic commans connectivity on AppleTalk, Connection Network Service CLNSIP, Novell, Apollo, VINES, DECnet, or XNS networks, use the ping packet internet putty ftp command line options xq user EXEC command. The user-level ping feature provides a basic ping facility for users that do not have system privileges.

This feature allows the Cisco IOS software to perform the simple default ping functionality for a number of protocols. Only the terse form of the ping command is supported for user-level pings. The following display shows sample ping output when you ping the IP host named donald: To allow slave Versatile Interface Processor VIP cards to log important system messages to the console, use the service slave-log global configuration command. To disable slave logging, use the no form of putty ftp command line options xq command.

This command allows slave slots to log system messages of level 2 or higher critical, alerts, and emergencies. In the following example, important messages from the slave cards to the console are logged: In the following example sample output is illustrated when this command is enabled: The first line indicates which slot sent the message. The second line contains the system message. To generate keepalive packets on idle incoming network connections initiated by the remote hostuse the service comjand global configuration command.

To disable the keepalives, use the no form of this command. In the following example, keepalives on incoming TCP connections are generated: Generates keepalive packets on idle outgoing network connections initiated by a user. In the following example, keepalives on outgoing TCP connections are generated: Generates keepalive packets on idle incoming network connections initiated by the remote host. To configure the system to time-stamp debugging or logging messages, use one of the service timestamps global configuration commands.

To disable this service, use the no form of this command. Indicates timestamping for system fpt messages. Optional Specifies that the time stamp fto consist of the time since the system was puty rebooted. For example "4w6d" time since last reboot is 4 weeks and 6 days. Optional Includes milliseconds in the time stamp, in the format HH :DD:MM:SS. If the service pktty command is specified with no arguments or keywords, the cmomand is service timestamps debug uptime.

The default for the service timestamps type datetime command is to format the time in Coordinated Universal Time UTCwith no milliseconds and no time zone name. The no service timestamps command by itself disables time stamps for both debug and log messages. Time stamps can be added to either debugging or logging messages independently. The uptime form of the command adds time stamps in the format HHHH:MM:SS, indicating the time since the system was rebooted.

In the following example, the user enables time stamps on debugging messages, showing the time since reboot: In the following example, the user enables time stamps on logging messages, showing the current time and date relative to the local time zone, with the time zone name included: To display information for troubleshooting the Cisco series router, use the show c EXEC command. The show c command provides complex troubleshooting information that pertains to the platform's shared references rather than to a specific interface.

In the following example, sample output is shown for the show c EXEC command. Denotes a subsection of the Interrupt section that displays data about the interrupt handlers. Denotes the subsection of the Interrupt section that displays internal Cisco IOS priorities. Each item in this subsection indicates a Cisco IOS interrupt level and the bit mask used to mask out interrupt sources when that Cisco IOS level is being processed.

Used exclusively for debugging. This subsection describes the optiojs of the Interrupt Throttling mechanism on the platform. Number of times throttle has deactivated because the maximum masked out time for network interrupt level has been reached. Maximum time network level interrupt is masked out to allow process level code to run in microseconds. Indicates that the network level interrupt putty ftp command line options xq masked or that the router is in interrupt throttle state.

Monitors the commmand of the Internal Direct Memory Access Outty hardware and software. Used to coalesce packets turn particalized packets into non particalized packets for transfer to the process level switching mechanism. You can use the output of this command to determine whether the hardware version putyt putty ftp command line options xq upgrade is current. The information is generally useful for diagnostic tasks performed by technical support only. The following is sample output from the show c command: To display the current status of all Cisco link services CLS sessions on the router, use the show cls EXEC command.

The Cisco link service CLS is used as puttg interface between data link users DLUssuch as DLSw, LAN Network Manager LNMdownstream physical unit DSPUand SNASw, and their corresponding data link circuits DLCs such as Logic Link Control LLCVDLC, and Qualified Logic Link Control QLLC. Each DLU registers a particular service access point SAP with CLS, and establishes circuits through CLS over the DLC.

The show cls command displays the SAP values associated with pputty DLU and the circuits established through CLS. The following fpt sample output from the show cls command: The following is sample output from the show cls brief command: The examples show two DLUs—SNASw and DLSw—active in the router. SNASw uses a SAP value of 0x04, commajd the associated DLC port is VDLC SNASw has a circuit established between MAC addresses DLSw is a bridging putyt and uses VDLC and VDLC ports.

There are no circuits in place at this time. In the output from putty ftp command line options xq show cls command without the brief argumentthe values of timers and counters applicable to this circuit are displayed. To display information stored in NVRAM when an exception occurs, use the show context EXEC command.

Context putty ftp command line options xq is specific to processors and architectures, whereas software version and uptime information is not specific to architectures. Context information for the Cisco series router differs from that for other router types because the Cisco runs with an M processor. Use this information when you read the displayed statistics to an engineer over the phone.

Router real time when exception occurred. The router must commamd the clock time properly configured for this to be accurate. To display information stored in NVRAM when the router crashes, use the show context EXEC command. When optionally used with the slot keyword, commaand crash information for the specified slot. The index number allows you to look at previous crash contexts.

Index numbers are displayed by the show context summary command. Optional Displays crash information as a hex record dump in addition to one of the options listed. This command was ooptions to add the alldebugslotand summary keywords. It is included here in case you need to read the displayed statistics to an engineer over the phone. The following is sample output from the show context command following a system failure: The following fyp sample output from the show context summary command on a Cisco router.

The show context summary command displays a summary of all the crashes recorded. To display information that is specific to the hardware, use the show controllers privileged EXEC command. CSAR is the name of the chip on the card that handles traffic between the GRP and the switch fabric interface ASICs. Optional Displays the clock and scheduler card register information in the field programmable gate array FPGA.

Optional Display the switch fabric clock register information. The switch fabric clock FPGA is a chip that monitors the incoming fabric clock generated by the switch fabric. This clock is needed by each card connecting to the switch putty ftp command line options xq to properly communicate with it. Two switch fabric clocks arrive at each card; only one can be used. The FPGA monitors both clocks and selects which one to use if only one of them is running.

Slot numbers range from 0 to 11 for the Cisco router and from 0 to 7 for the Cisco router. The SDRAM buffer carve information displayed is suggested carve information from the Commannd card to the line card. Line cards might change the shown percentages based on SDRAM available. Slot numbers range from 0 to 11 for the Cisco router and ophions 0 to 7 for the Cisco Optional Displays the SCA register information.

The SCA is an ASIC that arbitrates among the line cards requests to use the switch fabric. Optional Displays the crossbar register information. The XBAR is an ASIC that switches the data as it passes through the switch fabric. This information provided by this command is intended for use only by technical support representatives in analyzing system failures in the field.

The range of choices is from 0 to 3. For the frfab or tofab keywords, displays microcode, micro sequencer, or register information for the silicon queuing engine SQEalso known as the buffer management ASIC BMA. Displays SQE information for the microcode bundled in the line card and currently running version. For the frfab or tofab commanv, displays the SDRAM buffer pool queue element summary information. For the frfab or tofab keywords, displays the SDRAM buffer pool queue detail information.

For the frfab or tofab keywords, displays the SDRAM buffer pool information. For the frfab or tofab keywords, displays the BMA counters. Displays packet-over-sonic POS information for framer registers, framer queues, and ASIC registers. Note This information provided by this command is of use only to technical support representatives in analyzing crashes in the field.

Because you are executing this command on the line card, you must use the execute-on command to use the show command, or you must connect to the card using the attach command. All examples in this section use the execute-on command The following is partial sample output from the show controllers atm command: The following is partial sample output from the show controllers command: The following is partial sample output from the show controllers pos framers command: The following is partial sample output from the show controllers fia command: To display logging information about a Versatile Interface Processor VIP card, use the show controllers logging privileged EXEC command.

When enabled, system logging messages are sent to a UNIX host that acts as a syslog server; that is, it captures and saves the messages. Minimum level of severity required for comand log message to be sent to a monitor terminal not the console. Minimum level of severity required for a log message to be sent to a syslog server. Uses the show interfaces EXEC command to display ALC information. Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

To display information about the types of debugging that are enabled for your router, use the show debugging privileged EXEC command. The following is sample output from the show debugging command. In this example, three types of CDP debugging are enabled. To display hardware information including DRAM and static RAM SRAM on line cards, use the show diag command in privileged EXEC mode. Use this command to determine the type of hardware installed in your router.

This command applies line cards in Cisco Universal Access Servers; Cisco, and series routers; and Cisco series GSRs. Note The enhancement to display the field replaceable unit FRU number in show commqnd command output is not available in all Cisco IOS releases and not all Cisco devices and Cisco network modules will display their FRU numbers.

Examples of output showing the FRU number are included in the Examples section. For the Cisco router, this command applies to NSEs, line cards, MSCs, and SPAs. For MSCs, information about the MSC and each of putty ftp command line options xq installed SPAs is displayed. Commans that indicates how many times the port adapter has been returned and repaired. Return material authorization commanx, which is an administrative number assigned if the port adapter needs to be returned for ft.

The following example shows how to obtain hardware information about an installed AIM-VPN on the Cisco XM router. Time when the SPA was installed, and elapsed time between that insertion time and the current time. Current status of the SPA. For more information about the status field descriptions, refer to the show hw-module subslot oir command. Each HWIC has a daughtercard as part of its assembly.

The command results below give the output from the HWIC followed by the output from its daughtercard. The following sample output from a Cisco series router shows the FRU number: Modifies the operating mode of the digital subscriber line for an ATM interface. Displays Fast Ethernet interface information, transmission statistics and errors, and applicable MAC destination address and VLAN filtering tables. Displays Gigabit Ethernet interface information, commnd statistics and errors, and applicable MAC destination address and VLAN filtering tables.

To display flash or file system information for a disk located in slot 0, use the show disk command in user EXEC or privileged EXEC mode. Optional Displays the device information block, the status information, and the usage information. This command was enhanced to display information about the ATA ROM monitor library monlib file. The show disk0: command is supported only on platforms that have a disk file system located in slot 0.

Use the show disk0: command to display details about the files in a particular ATA PCMCIA flash disk memory card. Different platforms may have a similar name or the same name for their ATA monlib file. The following examples show displays of information about the flash disks or file system information for a disk. The output is self-explanatory. Displays a directory listing of files on an ATA PCMCIA flash disk card located in slot 0. Displays a directory listing of files on an ATA PCMCIA flash disk card located in slot 1.

To display flash or file system information for a disk located in slot 1, use the show disk1: command in user EXEC or privileged EXEC mode. The show disk1: command is supported only on platforms that have a disk file system. Use the show disk command to display details about the files in a particular ATA PCMCIA flash disk memory card located in slot 1.

Optional Displays a detailed listing of all environmental monitor parameters for example, the power supplies, temperature readings, voltage readings, and blower speeds. This is the default. Optional Displays the status of the MBus LEDs on the clock and scheduler cards and switch fabric cards. Optional Displays power supply voltage and current information. If applicable, displays the status of the Redundant Power Supply RPS.

Optional Displays the temperature, voltage, and blower ranges and thresholds. The alarmsfanshardwareledspower-supplytable temperatureand voltages keywords were added for Cisco series GSRs. This command was expanded to monitor the RPS and board temperature for the Cisco AS platform, Cisco Series routers, Cisco series routers, and the Cisco series routers. Once a minute a routine is run that gets environmental measurements from sensors and stores the output into a buffer.

If a measurement exceeds desired margins, but has not exceeded fatal margins, a fhp message is printed to the system console. The system software queries the sensors for measurements once a minute, but warnings for a given test point are printed at most once every hour for sensor readings in the warning range and once every 5 minutes for sensor readings in the critical range. If a measurement is out of line within these time segments, an automatic warning message appears on the console.

If a shutdown occurs because of detection of fatal environmental margins, the last measured value from each sensor is stored in internal nonvolatile memory. For environmental specifications, refer to the hardware installation and configuration publication for your individual chassis. If the Cisco series exceeds environmental conditions, a message similar to the following is displayed on the console: Note Blower temperatures that exceed environmental conditions do not generate a warning message.

You can also enable Simple Network Management Protocol SNMP notifications traps or informs to alert a network management system NMS when environmental thresholds are reached using the snmp-server enable traps envmon and snmp-server host global configuration commands. Whenever Cisco IOS software detects a failure or recovery event from the DRPS unit, it sends an SNMP trap to the configured SNMP server. Unlike console messages, only one SNMP trap is sent when the failure event is first detected.

Another trap is sent when the recovery is detected. Cisco AS DRPS software reuses the MIB attributes and traps defined in CISCO-ENVMON-MIB and CISCO-ACCESS-ENVMON-MIB. CISCO-ENVMON-MIB is supported by all Cisco routers puty RPS units, and CISCO-ACCESS-ENVMON-MIB is supported by the Cisco series routers. A power supply trap defined in CISCO-ENVMON-MIB is sent when a failure is detected and when a failure recovery occurs for the following events: input voltage fail, DC output voltage fail, thermal fail, and multiple failure events.

A optilns failure trap defined in CISCO-ENVMON-MIB is sent when a fan failure or recovery event is detected by Cisco IOS software. A temperature trap defined in CISCO-ACCESS-ENVMON-MIB is sent when a board overtemperature condition is detected by Cisco IOS software. CISCO-ACCESS-ENVMON-MIB also defines an overvoltage trap. A similar cmmand is defined in CISCO-ENVMON-MIB, but it requires the ciscoEnvMonVoltageStatusValue in varbinds.

This value indicates the current value of the voltage in the RPS. With Cisco AS RPS units, the current voltage value is not sent to the motherboard. CISCO-ENVMON-MIB is extended to add a new enumerated value, internalRedundant 5for MIB attribute ciscoEnvMonSupplySource. This is used to identify a RPS unit. In the following example, the typical show environment display is shown when no warning conditions are in the system for the Cisco series and Cisco putty ftp command line options xq routers.

This information may vary slightly depending on the platform you are using. The date and time of the query are displayed, along with the data refresh information and a message indicating that there are no warning conditions. If environmental measurements are not within specification, warning messages are displayed. The following are examples of messages that display on the system console when a measurement has exceeded an acceptable margin: The system displays the following message if voltage or temperature dtp maximum margins: In the following example, there have been two intermittent power failures since a router was turned on, and the lower power supply is not functioning.

The last intermittent power failure occurred on Monday, Putyy 10,at p. Number of power hits not resulting in shutdown since the system was last booted. The following example is for the Cisco series router. The router retrieves the environmental statistics at the time of the last llne. In this example, the last shutdown was Friday, May 19,at p. In the following example, shows sample output for the current environmental status in tables that list voltage and temperature parameters.

There are three warning messages: one each about the lower power supply, the airflow temperature, and the inlet temperature. In this example, voltage parameters are shown to be in the normal range, airflow temperature is at a critical level, and inlet temperature is at the warning level. Inlet measures the air coming in, and Airflow measures the temperature of the air inside the chassis.

Processor has detected condition that could cause physical damage to the system. The system displays the lie message if the voltage or temperature enters the "Warning" range: The system displays the following message if the voltage or temperature enters the "Critical" range: The system displays the following pktty if the voltage or temperature exceeds the maximum margins: The following message is sent to the console if a power supply has been inserted or removed from the system.

This message relates only to systems that have two power supplies. The following message is sent to the console if a power supply has been powered on or off. In the case of the power supply being shut off, this message can be due to the user shutting off the power supply or to a failed power supply. Current measurements of the chassis temperature at the inlet and outlet locations.

This example shows the measurements immediately before the last shutdown and the reason for the last shutdown if appropriate. This information lists the temperature and voltage shutdown thresholds for commmand sensor. The system continues to operate; however, the system is approaching shutdown. Level at which a warning message is issued for an out-of-tolerance voltage condition.

The system continues to operate, but operator action is recommended to bring the system back to a normal state. Level at which a warning message is issued. Level at which a critical message is issued. For the commandd, the router is shut down. For the power supply, the power supply is shut down. The sample output for the Cisco series routers may vary depending on the specific model for example, the Cisco router.

Software controlled fan speed. If the router is at or above its automatic restart temperature, the transfer point is increased in the same way. Compares temperature sensor against the values displayed at the bottom of the show environment table command output. When the temperature increases above the "board shutdown" level, a soft shutdown occurs that is, the cards are shut down, puttty the power supplies, fans, and CI continue to operate.

When the system cools to the restart level, the system restarts. When the counter reaches zero, the system performs a hard shutdown, which requires a power cycle to recover. Temperature measurements at the inlet, hotpoint, and exhaust areas of the card. The 6 and 7 indicate commad slot numbers. This example optoins the measurements immediately before the last shutdown. This information lists the temperature and voltage thresholds for each sensor. These thresholds indicate when system messages occur.

There are ckmmand level of messages: warning and critical. Slots 0 through 11 are the line cards, slots 16 and 17 are the clock and scheduler cards, slots 18 through 20 are the switch fabric cards, slots 24 through 26 are the power supplies, and slots 28 and 29 are the blowers. An "NA" in the table means that no values were returned. In some cases it is because the equipment is not supported for that environmental parameter for example, the power supply and blowers in slots commanx, 26, 28, and 29 do not have a 3V power supply, so an NA is displayed.

Measures the 3v power supply on the card. The 3v power supply is on the line cards, GRP card, clock and scheduler cards, and switch fabric cards. Measures the 5v power supply on the card. The 5v optons supply is on the line cards, GRP card, and power supplies. Measures the temperature at the hot sensor on the card. The hot sensor is on the line cards, GRP card, clock and scheduler cards, switch fabric cards, and blowers.

Measures the current inlet temperature on the card. The inlet sensor is on the line cards, GRP card, clock and scheduler cards, switch fabric cards, and power supplies. The Cisco router does not support slots 25, 27, 28, and In some cases it is because the equipment is not supported for that environmental parameter for example, the power supplies in slots 24 and 26 do not have a hot sensor, so an NA is displayed. Specifies how SNMP notifications should be sent as traps or informsthe version of SNMP to use, the security level of the notifications for SNMPv3and the recipient host of the notifications.

To display hardware information on the Cisco series Gigabit Switch Routers Pptionsputhy the show gsr EXEC command. Use this command to determine the type of hardware installed in your Cisco series GSR router. The following is sample output from the show gsr command for a Cisco router. This command shows the type and state of the card installed in the slot. The following is sample output from the show gsr chassis-info command for a Cisco router: To display all GT internal registers and interrupt status on the Cisco series routers, use the show gt EXEC command.

The following is a partial sample output for xw show gt command: To display the state of system logging syslog and the contents of the standard system logging message buffer, use the show logging privileged EXEC command. The slot and summary keywords were added for the Cisco family. This command displays the state of syslog error and event logging, including host addresses, and whether console logging is enabled.

This command also displays Simple Network Management Protocol SNMP configuration parameters and protocol activity. Note Within the context of the CLI, "syslog" is an abbreviation for the system message logging process in Cisco IOS software. When enabled, system logging messages are sent to a UNIX host that acts as a syslog server; that is, syslog messages are saved to the specified server.

Minimum level of severity required for a log message to be sent to the console. If disabled, the word "disabled" is displayed. Displays whether SNMP logging is enabled, the number of messages logged, and the retransmission interval. For example, line card in slot 9 has 1 system message, 4 warning messages, and 47 notification messages.

Indicates the slot number of the line card. An asterisk next to fommand slot number indicates the GRP card whose error message counts are not displayed. For information on the GRP otpions, use the show logging command. Changes the number of syslog messages stored in the history table of the router. Logs messages to an internal buffer on a line card and limits the logging messages displayed on terminal lines other than the console line to messages with a level at or above level.

To display information about the state of the syslog history table, use the show logging history privileged EXEC command. Messages stored in the table are governed by the logging history global configuration command. The following example shows sample output from the show logging history command. In this example, notifications of severity level 5 notifications through severity level 0 emergencies are configured to be written to the logging history table. Number of messages that can be stored in the history table.

Set with the logging history size command. Level of messages that are stored in the history table and sent to the SNMP server if SNMP notification is enabled. The severity level can be configured with the logging history command. Number of messages not stored in the history table because the severity level is greater than that specified with the logging history command. Number of messages that could not be processed due to lack of system resources. Dropped messages do not appear in the history table and are not sent to the SNMP server.

Number of messages that have been removed from the history table to make room for newer messages. Whether syslog traps of the appropriate level are sent to the SNMP server. The sending of syslog traps are fftp or disabled through the snmp-server enable traps syslog command. Number of the message entry in the history table. Limits syslog messages sent to the router's history table to a specified severity level. Changes the number of syslog messages that can be stored in the history table.

Logs messages to an internal buffer on a line card. This command limits the logging messages displayed on terminal lines other than the console line to messages with a level at or above level. The [ no ] snmp-server enable traps syslog form of this command controls enables or disables the sending of system-logging messages to a network management station. To display memory utilization statistics, use the show memory command in User lije Privileged EXEC mode. Optional Displays only multibus memory.

Originally supported on the Cisco series. Optional Displays only free memory statistics for the specified memory type. Optional Summarizes the statistics by grouping them together by Allocating Process Call Alloc PC. If a memory address is not specified, statistics for all memory addresses are displayed. If a memory type processor io multibus is not specified, statistics for all memory types present are displayed.

This information is intended for use by Cisco opitons support personnel. Tip This command can generate a large amount of output. Then this command displays, for each memory pool, a complete list lihe all blocks. The following is sample output from the show memory command: The following is sample output from the show memory free command: The display of show memory free contains the same types of information as the show memory display, except that only free memory is displayed, and the information is displayed in order for each free list.

The first section of the display includes summary statistics about the activities of the system memory allocator. The second section of the display is a block-by-block listing of memory use. Reference count for that memory block, indicating how many different processes are using that block of memory. Name of process that owns the block, or " fragment " if oprions block is a fragment, or " coalesced " if the block xw coalesced from adjacent free blocks.

The following is sample output from the show memory io command: The show memory summary command displays a summary of all memory pools and memory usage per Alloc PC address of the system call that allocated the block. The following optione partial sample output from the show memory summary command. Displays a summary of how much memory is being allocated and freed by each process on the router.

To display statistics on allocated memory with corresponding allocating processes, use the show memory allocating-process optkons in user EXEC or privileged EXEC mode. Terminated processes accounts for memory allocated under another process. Name of the process that owns the block, or " fragment " if the block is a fragment, or " coalesced " if the block was coalesced from adjacent free blocks.

To display the list of blocks containing references to a given range of lone in the memory or references to free memory, use the show optiions debug references command in user EXEC or privileged EXEC mode. Address of the free block which now contains the memory referenced by the dangling co,mand. To display the list of memory blocks which have been allocated but not used, use the show memory debug unused command in user EXEC or privileged EXEC mode.

To display single-bit Error Code Correction ECC error logset data, use the show memory ecc command in privileged Putty ftp command line options xq mode. Use this command to determine if the router has experienced single-bit parity errors. The following is sample output from the show memory ecc command from a series router running Cisco IOS Release To display statistics about failed memory allocation requests, use the show memory failures alloc command in the privileged EXEC mode.

Address of the allocator function that putty ftp command line options xq memory allocation request that failed. To display fast memory details for the router, use the show memory fast command. Optional Summarizes the statistics for allocating processes, dead memory, or free memory. The show memory fast command displays the statistics for the fast memory.

Note The show memory fast command is a command alias for the show memory processor command. These commands will generate the same output on most platforms. The following example shows sample output from the show memory fast and the show memory processor commands: The following example shows sample output from the show memory fast allocating-process command, followed by sample output from the show memory fast allocating-process totals command: The following example shows sample output from the show memory fast dead command: To display statistics about multibus memory, including memory-free pool statistics, use the show memory multibus command in user EXEC or privileged EXEC mode.

Address of the preceding block should match the address on the preceding line. Address of the following block should match the address on the following line. Name of the process that owns the block, or " fragmen " if the block is a fragment, or " coalesced " if the block was coalesced from adjacent free blocks.

To display statistics about Peripheral Component Interconnect PCI memory, use the commnad memory commamd command in user EXEC or privileged EXEC mode. Name of process putty ftp command line options xq owns the block, or " fragmen " if the block is a fragment, or " coalesced " if the block was coalesced from adjacent free blocks. To display statistics on the router processor memory, use the show memory processor command in user EXEC or privileged EXEC mode.

For the show memory scan command to function, the memory scan feature must be enabled on the RSP using the memory scan global configuraiton mode command. If errors are detected in the system, the show memory scan command generates an error report. The show memory statistics history table command displays a histogram of memory usage. The quantity on the x-axis is percentage of memory free and on the y-axis optionss time.

The height of the histogram at any given point in time indicates the percentage of free memory in the pool. To display information about the peripheral component interconnect PCI hardware registers or bridge registers for the Cisco series routers, use the show pci EXEC command. If not specified, putty ftp command line options xq command displays information about all registers. The output of this command is generally useful for diagnostic tasks performed by technical support only.

Note The show pci hardware EXEC command displays lind substantial amount of information. The following is sample output for the PCI bridge register 1 on a Cisco series router: The following is partial sample output for the PCI hardware register, which also includes information on all the PCI bridge registers lune a Cisco series router: To display information about the Host-PCI bridge, use the show pci hardware EXEC command. The output of this command is generally useful for diagnostic tasks performed by technical support only: The following is partial sample output for the PCI hardware register, which also includes information on all the PCI bridge registers.

Identifies the PCI vendor and device. The value 0xEE identifies the device as the Xilinx-based Host-PCI bridge for the Cisco router. Provides status of the Host-PCI bridge. Refer to the PCI Specification for more information. The base address of PCI Target Region 0 for the Host-PCI bridge. This region is used for Big-Endian transfers between PCI devices and memory.

The base address of PCI Target Region 1 for the Host-PCI bridge. This region is used for Little-Endian transfers between PCI devices and memory. To pputty information about the active processes, use the show processes command in EXEC mode. CPU utilization for the last 5 seconds. The second number indicates the percent of CPU time spent at the interrupt level.

Possible values: C criticalH highCpmmand mediumL low. Note Because the network server has a 4-millisecond clock resolution, run times are considered reliable only after a large number of invocations or a reasonable, measured run time. To display CPU utilization information about the active processes in a device, use the show processes cpu command in privileged EXEC mode.

When you use the optional history keyword, output shows in ASCII graphical form the total CPU usage on the device over a period of time. Time periods are one minute, one hour, and 72 hours, displayed in increments of one second, one minute, and one hour, respectively. Maximum usage is measured and recorded every second; average usage is calculated on periods of more than one second. Consistently high CPU utilization over an extended period of time indicates a problem and using the show processes cpu command is useful for troubleshooting.

Also, you can use the output of this command in the Cisco Output Interpreter tool to display potential issues and fixes. Output Interpreter is available to registered users of Cisco. The following is sample output from the show processes cpu command without keywords: The following is sample output of the one-hour portion of the output. The Llne of the graph is the CPU utilization.

The X-axis of the graph is the increment within the time period displayed putty ftp command line options xq the graph. This example shows the individual minutes during the previous hour. The most recent measurement is on the left of the X-axis. The top two rows, read vertically, display the highest percentage of CPU utilization recorded during the time options trading videos de barbie. In this example, the CPU utilization for the last minute recorded is 66 percent.

The device may have reached 66 percent only once during that minute, or it may have reached 66 percent multiple times. The device records only the peak reached during the time increment and the average over the course of that increment. CPU utilization for the last 5 seconds and the percent of CPU time spent at the interrupt level.

CPU utilization for the last minute and the percent of CPU time spent at the interrupt level. CPU utilization for the last 5 minutes and the percent of CPU time spent at the interrupt level. Note Because platforms have a 4- to 8-millisecond clock resolution, run times are considered reliable only after several invocations or a reasonable, measured run time. Commsnd show memory used, use the show processes memory command in EXEC mode.

This keyword shows detail for only the specified process. Bytes of memory freed by the process, regardless of who originally allocated it. The following is sample output from the show process memory command when a PID is specified: To display the configured protocols, use the show protocols EXEC command. This command shows the global and interface-specific status of any configured Putty ftp command line options xq 3 protocol; for example, IP, DECnet, IPX, AppleTalk, and so on.

The following is sample output from the show protocols command: For more information on the parameters or protocols shown in this sample output, see the Cisco IOS Network Protocols Configuration Guide, Part 1, Network Protocols Configuration GuidePart 2and Network Protocols Configuration Guide, Part 3. To display information about the PCMCIA flash memory cards file system, use the show slot command in user EXEC or privileged EXEC mode.

Use the show slot command to display details about the files in a particular linear PCMCIA flash memory card of less than 20 MB and some 32 MB linear PCMCIA cards. Note Use the show disk command for ATA PCMCIA cards. Other forms of this commands are show disk0: and show disk The following display indicates a linear PCMCIA flash card with K bytes of flash memory in card at slot 1 with a sector size of K. Note In some cases the show slot command will not display the file systems, use show slot0: or show slot The following example displays information about slot 0.

The following example shows all possible flash system information for all PCMCIA flash cards in the system. Displays information lihe the PCMCIA flash memory card's file system located in slot 0. Displays information about the PCMCIA flash memory card's file system located in slot 1. To display information about the PCMCIA flash memory card's file system located in slot 0, use the show slot0: command in user EXEC or privileged EXEC mode.

Use the show slot0: command to display details about the files in a particular linear PCMCIA flash memory card of less than 20 MB and some 32 MB linear PCMCIA cards. To display information about the PCMCIA flash memory card's file system located in slot 1, use the show slot1: command in user EXEC or privileged EXEC mode. Use the show slot1: command to display details about the files in a particular linear PCMCIA flash memory card of less than 20 MB and some 32 MB linear PCMCIA cards located in slot 1.

To monitor the stack ftl of processes and interrupt routines, use the show stacks Optiona command. The display from this command includes the reason for the last system cq. If the system was reloaded because of a system failure, a saved system stack trace is displayed. This information is of use only to your technical support representative in analyzing crashes in the field. The following is sample output from the show stacks command following a system failure: To display the subsystem information, use the show subsys privileged EXEC command.

Valid classes are driverkernellibrarymanagementprotocoland registry. Use the show subsys command to confirm that all required features are in the running image. Class of the subsystem. Possible classes include Kernel, Library, Driver, Protocol, Management, Registry, and SystemInit. To display the status of TCP connections, optuons the show tcp EXEC command. A connection progresses through a series of states during its lifetime. These states follow in the order in which a connection progresses through them.

This is the normal state for the data transfer phase of the connection. For more information, see RFCTransmission Control Protocol Functional Specification. Number of bytes that the lower-level TCP potions have read, but the higher-level TCP processes have not yet processed. The line number uses the lower nine bits; the other bits are random.

Number of packets waiting on the retransmit queue. These are putty ftp command line options xq on this TCP connection that have been sent but have not yet been acknowledged by the remote TCP host. Number of received out-of-order packets that are waiting for all packets comprising the message to be received before they enter the input queue. For example, if packets 1, 2, 4, 5, and 6 have been received, packets 1 and 2 would enter the input queue, and packets 4, 5, and 6 would enter the saved queue.

The following line of output shows the current time according to the system clock of the local host: The following lines of output display the number of times that various local TCP timeout values were reached during this connection. In this example, the local host re-sent data 30 times because it received no response from the remote host, and it sent an acknowledgment many more times because there was no data on which to piggyback. Number of keepalives sent without receiving any response.

This field is reset to zero when a response is received. The system clock setting that will trigger the next time this timer will go off. The Retransmission timer is used to time TCP packets that have not been acknowledged and are waiting for retransmission. The TimeWait timer is used to ensure that the remote system receives a request to x a session. The Acknowledgment timer is used to delay the sending of acknowledgments to the remote TCP in an attempt to reduce network use.

The Send Window is used to ensure that there is no x window due to a lost TCP acknowledgment. The KeepAlive timer is used to control the transmission of test messages to the remote TCP to ensure that the link has not been broken without the local TCP's knowledge. The GiveUp timer lptions the amount of time a local host will wait for an acknowledgement or other appropriate reply of a transmitted message after the the maximum number of retransmissions has been reached.

If the timer expires, the local host gives up retransmission attempts and declares the connection dead. The PMTU age timer is a time interval for how often TCP reestimates the path MTU with a larger maximum segment size MSS. When the age timer is used, TCP path MTU becomes a dynamic process. If the MSS is smaller than what optiobs peer connection can manage, a larger MSS is tried every time the age timer expires.

The discovery process stops when the send MSS is as putty ftp command line options xq as the peer negotiated or the timer has been manually disabled by setting it to infinite. The following lines of output display the sequence numbers that TCP uses to ensure sequenced, reliable transport of data. The local host and remote host each use these sequence numbers for flow control and to acknowledge receipt of datagrams.

Last send sequence number that the local host sent but has not received an acknowledgment for. Delayed receive window—data the local host has read from the connection, but has not yet subtracted from the receive window the host has advertised to the remote host. The value in this field gradually increases until it is larger than a full-sized packet, at which point it is applied to the rcvwnd field. The following lines of output display values that the local host uses to keep track of transmission times so that TCP can adjust to the network it is using.

This field separately tracks the round-trip time of packets that have been re-sent. Time the local host will delay an acknowledgment in order to ljne data on it. For more information on these fields, refer to Round Trip Time Estimation, P. Partridge, ACM SIGCOMM, August Number of datagrams the local host has received during this connection and the number of these datagrams that were out of order.

Number of datagrams the local host sent during this connection and the number of these datagrams that needed to be re-sent. To display a concise description of TCP connection endpoints, use the show tcp brief Vommand command. Without this keyword, endpoints in the LISTEN state are not shown. The state of the connection. In the following example, source stream 3 ST3 channel 2 switched out optiojs stream 6 ST6 channel 2 is shown: To interpret the hexadecimal number 0x62 into meaningful information, you must translate it into binary code.

Optiona two hexadecimal numbers represent a connection from any stream and a channel on any stream. The number 6 translates into the binary codewhich represents the third-source stream. The number 2 translates into the binary codewhich represents the second-source channel. Stream 6 ST6 channel 0 is the destination for ST3 channel 2 in this example. To display a snapshot of the time-division multiplexing TDM bus data memory in a Cisco AS access server, use the show tdm data EXEC command.

To display general information about the router when reporting a problem, use the show tech-support privileged EXEC command. Use the return key to display the next line of output or use the space bar to display the next page of information. If not used, the output scrolls that is, does not stop for page breaks.

Optional Leaves passwords and other security information in the output. Optional Displays show command output specific to Cisco Express Forwarding CEF. Optional Displays show command output specific to Inter-Process Communications IPC. Optional Displays show command output related to the IP Multicast configuration, including Protocol Independent Multicast PIM information, Internet Group Management Protocol IGMP information, and Distance Vector Multicast Routing Protocol DVMRP information.

Optional Displays show ,ine output specific to Connectionless Network Service CLNS and Intermediate System-to-Intermediate System Protocol ISIS. Optional Displays show command output specific to Multilayer Switching Protocol MPLS forwarding and applications. Optional Displays show command output specific to Open Shortest Path First Protocol OSPF networking.

Optional Displays show command output specific to Resource Reservation Protocol RSVP networking. The output scrolls without page breaks. Passwords and other security information are removed from the output. The output for this command was expanded to show additional information for bootbootflashcontextand traffic for all enabled protocols. The output of this command can be provided to technical support representatives when reporting a problem.

The show tech-support command displays the output of a number of show commands at once. The output from this command will vary depending on your platform and configuration. For example, Access Servers will display voice-related show output. Additionally, the show protocol traffic commands will be displayed for only the protocols enabled on your ooptions. For example, if your TAC support representative suspects that you may have a problem in your Cisco Express Forwarding CEF configuration, you may be asked to provide the output of the show tech-support cef command.

Displays information about the number and type of Apollo Domain packets transmitted and received by the Cisco IOS software. Displays the DECnet traffic statistics including datagrams sent, received, and forwarded. Displays information about the number and type of IPX packets transmitted and received. Commanr information about the number and type of XNS packets transmitted and received by the Cisco IOS software.

To test Flash memory on Putty ftp command line options xq and envm Flash EPROM interfaces, use the test flash EXEC command. Performs a test of Multibus memory including nonvolatile memory on the modular router. To test the system interfaces on the modular router, use the test interfaces EXEC command. The test interfaces EXEC command is intended for the factory checkout of network interfaces. It is not intended for diagnosing problems with an operational router.

The test interfaces output does not report correct results if the router is attached o;tions a "live" network. For each network interface that has an IP address that can be tested in loopback MCI and ciscoBus Ethernet and all serial interfacesthe test interfaces command sends a series of ICMP echoes. Error counters are examined to determine the operational status of the interface. The memory test overwrites memory. If you use the test memory command, you will need to rewrite nonvolatile memory.

For example, if you test Multibus memory, which is the memory used by the CSC-R 4-Mbps Token Ring interfaces, you will need to reload the system before the network interfaces will operate properly. The test memory command is intended primarily for use by Cisco personnel. To discover the routes that packets will actually take when traveling to their destination, use the trace privileged EXEC command. Optional Destination address or host name on the command line. The default parameters for the appropriate protocol are assumed and the tracing action begins.

The protocol argument is based llne the Cisco IOS software examination of the format of the destination argument. For example, if the software finds a destination argument in IP format, the protocol value defaults to ip. The trace command works by taking advantage of the error messages generated by routers when a datagram exceeds its time-to-live TTL value. The trace command starts by sending probe datagrams with a TTL value of one. This causes the first router to discard the probe datagram and send back an error message.

The trace command sends several probes at each TTL level and displays the round-trip time for each. The trace command sends out optiins probe at a time. Each outgoing packet may result in one or two error messages. A "time exceeded" error message indicates that an intermediate router has seen and discarded dommand probe. A "destination unreachable" error message indicates that the destination node has received the probe and discarded it because it could not deliver the packet.

The trace command terminates when the destination responds, when the maximum TTL is exceeded, or when the user interrupts the trace with the escape sequence. To use nondefault parameters and invoke an extended trace test, enter the command without a destination argument. You will be stepped through a dialog to select the desired parameters. Due to bugs in the IP implementation of various hosts and routers, the IP trace command may behave in unexpected ways.

Not all destinations will respond correctly to a probe message by sending back an "ICMP port unreachable" message. Linee long sequence of TTL levels with only asterisks, terminating only when the maximum TTL has been reached, may indicate this problem. There is a known problem with the way some hosts handle an "ICMP TTL exceeded" message. Some hosts generate an "ICMP" message but they reuse the TTL of the incoming packet.

Because this is zero, the ICMP packets do not make it back. Eventually the TTL gets high enough putry the ICMP message can get back. For example, if the host is six hops away, the trace command will time out on responses 6 through One of the interface addresses of the router to use as a source address for the probes. The router will normally pick what it feels is the best source address to use. The default is to lin both a symbolic and numeric display; however, you can suppress the symbolic display.

The number of seconds to wait for a response to a probe packet. The default is 3 seconds. The number of probes to be sent at each TTL level. The TTL value for the first probes. The default is 1, but it can be set to a higher value to suppress the display of known hops. The largest TTL value that can be optikns. The default is Co,mand trace command terminates when the destination is reached or when this value is reached. The destination port used by the User Datagram Protocol UDP probe messages.

You can specify any combination. The trace command issues prompts for the required fields. Note that the trace command will place the requested options in each probe; however, there is no guarantee that all routers or end nodes will process the options. Allows you to specify a list of fttp that must be traversed when going to the destination. Allows you to specify a list of nodes that must be the only nodes traversed when going to the destination.

If you select any option, the verbose mode is automatically selected and the trace command prints the contents of the option field in any incoming packets. You can prevent verbose mode by selecting it again, toggling its current setting. For each node, the round-trip time in milliseconds for the specified number of probes.

Usually, this output indicates that an access list is blocking traffic. Discovers the CLNS routes that packets lone actually take when traveling to their destination. To discover the IP routes optiona packets will actually take when traveling to their commabd, use the trace EXEC command. For example, if the software finds a destination argument in IP format, the protocol defaults to ip.

This causes the first router to discard the probe datagram and send back a system message. Each outgoing packet may result in one or two system messages. A "time exceeded" system message indicates that an intermediate router has seen and discarded the probe. A "destination unreachable" system message optons that the destination node has received the probe and discarded it because it could not deliver the packet.

Some hosts generate an ICMP message but they reuse the TTL of the incoming packet. Since this is zero, the ICMP packets do not make it back. Eventually the TTL gets high enough that the "ICMP" message can get back. For example, if the host is six hops away, trace will time out on responses 6 through Probes the routes that packets follow when traveling to their destination from the router.

Home Support Product Support End-of-Sale and End-of-Life Products Cisco IOS Clmmand Releases Cisco IOS Configuration Fundamentals Command Reference, Release About the Cisco IOS Documentation Set. Using Cisco IOS Software. Part 1: Cisco IOS User Interfaces Commands. Basic Command-Line Interface Commands. Terminal Operating Characteristics Commands.

Connection, Menu, and System Banner Commands. Cisco IOS Web Browser UI Commands. Part 2: File Management Commands. Cisco IOS File System IFS Commands. Configuration File Management Commands. System Image and Microcode Commands. Basic File Transfer Services Commands. Part 3: System Management Commands. Basic System Management Commands. Troubleshooting and Fault Management Commands [ Cisco Service Assurance Agent ,ine Commands.

WCCP Router Configuration Commands - Release ASCII Character Set and Hex Values. Cisco Series Line Card Configuration Commamd. Find Matches lne This Book. PDF - Complete Book. PDF - This Chapter 1. View with Adobe Reader on a variety of devices. Updated: February 12, Chapter: Troubleshooting and Fault Management Commands [ Troubleshooting clmmand Fault Management Commands.

Cisco IOS Release Slot number of the line card you want to connect to. Type exit to end this session. Press RETURN to get started!. Disconnecting from slot Note Because not all statistics are maintained on the line cards, the output from some of the show commands might not be consistent. This command has no arguments or keywords. This outty was introduced. In the following example, the logging buffer is cleared:. Clear logging buffer [confirm]. Logs messages to an internal buffer.

Displays the state of logging ptty. Slot number of the line card you want to test. Optional Stops the field diagnostic testing on the line card. Optional Displays previous test results if any for the line card. Optional Enables the maximum status messages to be displayed on the console. No field diagnostics tests are performed on the line card.

This command was added to support the Cisco series GSR. Perform diagnostics on the CSC only if a redundant CSC is in the router. Performing field diagnostics on a line card stops all activity on the line card. Running Diags will halt ALL activity on the requested slot. Launching a Field Diagnostic for slot 3. Running DIAG config check. RUNNING DIAG download to slot 3 timeout set to sec. Field Diag eeprom values: run fial mode 0 PASS slot 3.

In the following example, a user is shown the output when field diagnostics are performed on the line card in slot 3 in verbose mode:. Router diag 3 verbose. Reloads the Cisco IOS image on a line card on the Cisco series with RSP, Cisco series, or Cisco series routers after all microcode configuration commands have been entered.

Name of the core dump lkne saved on the server. The core file is named hostname -core, where hostname is the name of the optilns. Creating a core dump while the router is functioning in a network can disrupt network operation. The resulting binary file, which is very large, must be transferred to a TFTP, File Opyions Protocol FTPor remote copy protocol rcp server and subsequently interpreted by technical personnel that have access to source code and detailed memory maps.

Causes the router to dump a core file to a particular server when the router crashes. Configures the protocol used for core dumps.




How to Use FTP Unix Command


更多» Account Options. 登入; 搜尋設定. Examples. In the following example, the user connects to the Cisco IOS image running on the line card in slot 9, gets a list of valid show commands, and returns the. contains an alphabetical listing of the commands specific to the Cisco Identity Services Engine (Cisco ISE), EXEC Commands, Show Commands, Configuration Commands.