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Cisco IOS Configuration Fundamentals Command Reference
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Introduction
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A through B
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C commands
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D through E
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F through K
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L through mode
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monitor event-trace through Q
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R through setup
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show through show fm summary
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show gsr through showmon
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slave auto-sync config through terminal-type
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test cable-diagnostics through xmodem
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ASCII Character Set and Hexadecimal Values
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Table Of Contents
show archive config differences
show archive config incremental-diffs
show autoupgrade configuration unknown
show controllers (line card image)
show
To verify the Multiple Spanning Tree (MST) configuration, use the show command. in MST configuration submode.
show [current | pending]
Syntax Description
current
(Optional) Displays the current configuration that is used to run MST.
pending
(Optional) Displays the edited configuration that will replace the current configuration.
Defaults
This command has no default settings.
Command Modes
MST configuration submode
Command History
Usage Guidelines
The display output from the show pending command is the edited configuration that will replace the current configuration if you enter the exit command to exit MST configuration mode.
Entering the show command with no arguments displays the pending configurations.
Examples
This example shows how to display the edited configuration:
Router(config-mst)# show pendingPending MST configurationName [zorglub]Version 31415Instance Vlans Mapped-------- ---------------------------------------------------------------------0 4001-40962 1010, 1020, 1030, 1040, 1050, 1060, 1070, 1080, 1090, 1100, 111011203 1-1009, 1011-1019, 1021-1029, 1031-1039, 1041-1049, 1051-10591061-1069, 1071-1079, 1081-1089, 1091-1099, 1101-1109, 1111-11191121-4000------------------------------------------------------------------------------Router(config-mst)#This example shows how to display the current configuration:
Router(config-mst)# show currentCurrent MST configurationName []Revision 0Instance Vlans mapped-------- ---------------------------------------------------------------------0 1-4094-------------------------------------------------------------------------------Related Commands
show <command> append
To redirect and add the output of any show command to an existing file, use the show command | append command in privileged EXEC mode.
show command | append url
Syntax Description
Command Modes
Privileged EXEC
Command History
12.0(21)S
This command was introduced.
12.2(13)T
This command was integrated into Cisco IOS Release 12.2(13)T.
Usage Guidelines
To display all URL prefixes that are supported for this command, use the show command | append ? command.
This command adds the show command output to the end of the specified file.
Examples
In the following example, output from the show tech-support command is redirected to an existing file on Disk 1 with the file-name of "showoutput.txt." This output is added at the end of any existing data in the file.
Router# show tech-support | append disk1:showoutput.txtRelated Commands
show <command> begin
To begin the output of any show command from a specified string, use the show command | begin command in EXEC mode.
show command | begin regular-expression
Syntax Description
Command Modes
EXEC
Command History
8.3
The show command was introduced.
12.0(1)T
This extension of the show command was introduced..
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
The regular-expression argument is case sensitive and allows for complex matching requirements. Use parenthesis to indicate a literal use of spaces. For example, | begin u indicates that the show output should begin with any line that contains a u; | begin ( u) indicates that the show output should begin with any line that contains a space and a u together (line has a word that begins with a lowercase u).
To search the remaining output of the show command, use the following command at the --More-- prompt:
/regular-expression
You can specify a filtered search at any --More-- prompt. To filter the remaining output of the show command, use one of the following commands at the --More-- prompt:
-regular-expression
+regular-expression
When output volume is large, the search can produce long lists of output. To interrupt the output, press Ctrl-^ (Ctrl-Shift-6) or Ctrl-z.
Note
Once you specify a filter for a show command, you cannot specify another filter at the next --More-- prompt. The first specified filter remains until the more command output finishes or until you interrupt the output. The use of the keyword begin does not constitute a filter.
Because prior output is not saved, you cannot search or filter backward through prior output.
Note
Examples
The following is partial sample output of the show interface | begin command that begins unfiltered output with the first line that contains the regular expression "Ethernet." At the --More-- prompt, the user specifies a filter to show only the lines in the remaining output that contain the regular expression "Serial."
Router# show interface | begin EthernetEthernet0 is up, line protocol is upHardware is Lance, address is 0060.837c.6399 (bia 0060.837c.6399)Description: ip address is 172.1.2.14 255.255.255.0Internet address is 172.1.2.14/24...0 lost carrier, 0 no carrier0 output buffer failures, 0 output buffers swapped out--More--+Serialfiltering...Serial1 is up, line protocol is upSerial2 is up, line protocol is upSerial3 is up, line protocol is downSerial4 is down, line protocol is downSerial5 is up, line protocol is upSerial6 is up, line protocol is upSerial7 is up, line protocol is upRelated Commands
show <command> exclude
To filter show command output so that it excludes lines that contain a particular regular expression, use the show command | exclude command in EXEC mode.
show command | exclude regular-expression
Syntax Description
Command Modes
EXEC
Command History
12.0(1)T
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
The regular-expression argument is case sensitive and allows for complex matching requirements.
You can specify a new search at every --More-- prompt. To search the remaining output of the show command, use the following syntax at the --More-- prompt:
/regular-expression
When output volume is large, the search can produce long lists of output. To interrupt the output, press Ctrl-^ (Ctrl-Shift-6) or Ctrl-Z.
Because prior output is not saved, you cannot search or filter backward through prior output.
Note
Examples
The following is partial sample output of the show | exclude command used with the show buffers command. It excludes lines that contain the regular expression "0 misses." At the --More-- prompt, the user searches for the regular expression "Serial0," which continues the filtered output with the first line that contains "Serial0."
Router# show buffers | exclude 0 missesBuffer elements:398 in free list (500 max allowed)Public buffer pools:Small buffers, 104 bytes (total 50, permanent 50):50 in free list (20 min, 150 max allowed)551 hits, 3 misses, 0 trims, 0 createdBig buffers, 1524 bytes (total 50, permanent 50):49 in free list (5 min, 150 max allowed)Very Big buffers, 4520 bytes (total 10, permanent 10):...Huge buffers, 18024 bytes (total 0 permanent 0):0 in free list (0 min, 4 max allowed)--More--/Serial0filtering...Serial0 buffers, 1543 bytes (total 64, permanent 64):16 in free list (0 min, 64 max allowed)48 hits, 0 fallbacksRelated Commands
show <command> include
To filter show command output so that it only displays lines that contain a particular regular expression, use the show command | include command in EXEC mode.
show command | include regular-expression
Syntax Description
Command Modes
EXEC
Command History
12.0(1)T
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
The regular-expression argument is case sensitive and allows for complex matching requirements.
You can specify a new search at every --More-- prompt. To search the remaining output of the show command, use the following syntax at the --More-- prompt:
/regular-expression
When output volume is large, the search can produce long lists of output. To interrupt the output, press Ctrl-^ (Ctrl-Shift-6) or Ctrl-Z.
Because prior output is not saved, you cannot search or filter backward through prior output.
Note
Examples
The following is partial sample output of the show interface | include command. It displays only lines that contain the regular expression "( is )." The parentheses force the inclusion of the spaces before and after "is." Use of the parenthesis ensures that only lines containing "is" with a space both before and after it will be included in the output. Lines with words like "disconnect" will be excluded because there are not spaces around the instance of the string "is".
Router# show interface | include ( is )ATM0 is administratively down, line protocol is downHardware is ATMizer BX-50Dialer1 is up (spoofing), line protocol is up (spoofing)Hardware is UnknownDTR is pulsed for 1 seconds on resetEthernet0 is up, line protocol is upHardware is Lance, address is 0060.837c.6399 (bia 0060.837c.6399)Internet address is 172.21.53.199/24Ethernet1 is up, line protocol is upHardware is Lance, address is 0060.837c.639c (bia 0060.837c.639c)Internet address is 5.5.5.99/24Serial0:0 is down, line protocol is downHardware is DSX1...--More--At the --More-- prompt, the user searches for the regular expression "Serial0:13", which continues filtered output with the first line that contains "Serial0:13."
/Serial0:13filtering...Serial0:13 is down, line protocol is downHardware is DSX1Internet address is 11.0.0.2/80 output errors, 0 collisions, 2 interface resetsTimeslot(s) Used:14, Transmitter delay is 0 flagsRelated Commands
show <command> redirect
To redirect the output of any show command to a file, use the show command | redirect command in privileged EXEC mode.
show command | redirect url
Syntax Description
Command Modes
Privileged EXEC
Command History
12.0(21)S
This command was introduced.
12.2(13)T
This command was integrated into Cisco IOS Release 12.2(13)T.
Usage Guidelines
To display all URL prefixes that are supported for this command, use the show command | redirect ? command.
This command creates a new file at the specified location, or overwrites an existing file.
Examples
In the following example, output from the show tech-support command is write to the file "showtech.txt" on the host at 172.16.101.101 in the directory "//tftpboot/docs/" using FTP:
Router# show tech | redirect ftp://USER:MYPASSWORD@172.16.101.101//tftpboot/docs/showtech.txtRelated Commands
show <command> section
To filter the output of a show command to match a given expression as well as any lines associated with that expression, use the show command section command in privileged EXEC mode.
show command | section [include | exclude] regular-expression
Syntax Description
Command Modes
Privileged EXEC
Command History
12.3(2)T
This command was introduced.
12.2(33)SRE
This command was integrated into Cisco IOS release 12.(33)SRE.
Usage Guidelines
In many cases, it is useful to filter the output of a show command to match a specific expression. Filtering provides some control over the type and amount of information displayed by the system. The show section command provides enhanced filtering capabilities by matching lines in the show command output containing specific expressions as well as matching any entries associated with those expressions. Filtering is especially useful, for example, when displaying large configuration files using the show running-configuration command or the show interfaces command.
If the include or exclude keyword is not specified, include is the default.
If there are no associated entries for an expression, then only the line matching the expression is displayed.
Examples
The following examples compare the filtering characteristics of the show running-config | include command with the show running-config | section command. The first example gathers just the lines from the configuration file with "interface" in them.
Router# show running-config | include interfaceinterface Ethernet0/0 interface Ethernet1/0 interface Serial2/0 interface Serial3/0The next example uses the show command section command to gather the lines in the configuration file with "interface" in them as well as any lines associated with those entries. In this example, interface configuration information is captured.
Router# show running-config | section include interfaceinterface Ethernet0/0 shutdown no cdp enableinterface Ethernet1/0 shutdown no cdp enable interface Serial2/0 shutdown no cdp enable interface Serial3/0 shutdown no cdp enableRelated Commands
show <command> tee
To copy the output of any show command to a file while displaying it on the terminal, use the show command | tee command in privileged EXEC mode.
show command | tee [/append] url
Syntax Description
Command Modes
Privileged EXEC
Command History
12.0(21)S
This command was introduced.
12.2(13)T
This command was integrated into Cisco IOS Release 12.2(13)T.
Usage Guidelines
To display all URL prefixes that are supported for this command, use the show command | tee ? command.
The tee keyword was chosen to reflect that output is redirected to two locations; the terminal and a file (as a tee plumbing junction redirects water to two different pipes).
Examples
In the following example, output from the show tech-support command is displayed on-screen while it is written to the file "showoutput.txt" at the host 172.16.101.101 using TFTP:
Router# show tech-support | tee tftp://172.16.101.101/docs/showoutput.txtThe following example performs the same function as above, but in this case the output is added at the end of any existing data in the file "showoutput.txt":
Router# show tech-support | tee /append tftp://172.16.101.101/docs/showoutput.txtRelated Commands
show (Flash file system)
To display the layout and contents of a Flash memory file system, use the show flash-filesystem command in EXEC mode.
Class A Flash File Systems
show flash-filesystem: [all | chips | filesys]
Class B Flash File Systems
show flash-filesystem:[partition-number:] [all | chips | detailed | err | summary]
Class C Flash File Systems
show flash-filesystem:
Syntax Description
Command Modes
EXEC
Command History
Usage Guidelines
If Flash memory is partitioned, the command displays the requested output for each partition, unless you use the partition keyword.
The command also specifies the location of the current image.
To display the contents of boot Flash memory on Class A or B file systems, use the show bootflash: command as follows:
Class A Flash file systems
show bootflash: [all | chips | filesys]
Class B Flash file systems
show bootflash:[partition-number] [all | chips | detailed | err]
To display the contents of internal Flash memory on Class A or B file systems, use the show flash: command as follows:
Class A Flash file systems
show flash: [all | chips | filesys]
Class B Flash file systems
show flash:[partition-number][all | chips | detailed | err | summary]
The show (Flash file system) command replaces the show flash devices command.
Examples
The output of the show command depends on the type of Flash file system you select. Types include flash:, bootflash:, slot0:, slot1:, slavebootflash:, slaveslot0:, and slaveslot1:.
Examples of output from the show flash command are provided in the following sections:
•
•
Although the examples use flash: as the Flash file system, you may also use the other Flash file systems listed.
Class A Flash File System
The following three examples show sample output for Class A Flash file systems. Table 48 describes the significant fields shown in the display.
The following is sample output from the show flash: command.
Router# show flash:-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. unknown 317FBA1B 4A0694 24 4720148 Dec 15 2003 17:49:36 -08:00 hampton/nitro/c7200-j-mz2 .. unknown 9237F3FF 92C574 11 4767328 Jan 02 2004 18:42:53 -08:00 c7200-js-mz3 .D unknown 71AB01F1 10C94E0 10 7982828 Jan 02 2004 18:48:14 -08:00 rsp-jsv-mz4 .D unknown 96DACD45 10C97E0 8 639 Jan 03 2004 12:09:17 -08:00 the_time5 .. unknown 96DACD45 10C9AE0 3 639 Jan 03 2004 12:09:32 -08:00 the_time6 .D unknown 96DACD45 10C9DE0 8 639 Jan 03 2004 12:37:01 -08:00 the_time7 .. unknown 96DACD45 10CA0E0 8 639 Jan 03 2004 12:37:13 -08:00 the_time3104544 bytes available (17473760 bytes used)
The following is sample output from the show flash: chips command:
RouterA# show flash: chips******** Intel Series 2+ Status/Register Dump ********ATTRIBUTE MEMORY REGISTERS:Config Option Reg (4000): 2Config Status Reg (4002): 0Card Status Reg (4100): 1Write Protect Reg (4104): 4Voltage Cntrl Reg (410C): 0Rdy/Busy Mode Reg (4140): 2COMMON MEMORY REGISTERS: Bank 0Intelligent ID Code : 8989A0A0Compatible Status Reg: 8080Global Status Reg: B0B0Block Status Regs:0 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B08 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B016 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B024 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0COMMON MEMORY REGISTERS: Bank 1Intelligent ID Code : 8989A0A0Compatible Status Reg: 8080Global Status Reg: B0B0Block Status Regs:0 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B08 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B016 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B024 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0COMMON MEMORY REGISTERS: Bank 2Intelligent ID Code : 8989A0A0Compatible Status Reg: 8080Global Status Reg: B0B0Block Status Regs:0 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B08 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B016 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B024 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0COMMON MEMORY REGISTERS: Bank 3Intelligent ID Code : 8989A0A0Compatible Status Reg: 8080Global Status Reg: B0B0Block Status Regs:0 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B08 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B016 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B024 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0COMMON MEMORY REGISTERS: Bank 4Intelligent ID Code : 8989A0A0Compatible Status Reg: 8080Global Status Reg: B0B0Block Status Regs:0 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B08 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B016 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B024 : B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0 B0B0The following is sample output from the show flash: filesys command:
RouterA# show flash: filesys-------- F I L E S Y S T E M S T A T U S --------Device Number = 0DEVICE INFO BLOCK:Magic Number = 6887635 File System Vers = 10000 (1.0)Length = 1400000 Sector Size = 20000Programming Algorithm = 4 Erased State = FFFFFFFFFile System Offset = 20000 Length = 13A0000MONLIB Offset = 100 Length = C730Bad Sector Map Offset = 1FFEC Length = 14Squeeze Log Offset = 13C0000 Length = 20000Squeeze Buffer Offset = 13E0000 Length = 20000Num Spare Sectors = 0Spares:STATUS INFO:WritableNO File Open for WriteComplete StatsNo Unrecovered ErrorsNo Squeeze in progressUSAGE INFO:Bytes Used = 10AA0E0 Bytes Available = 2F5F20Bad Sectors = 0 Spared Sectors = 0OK Files = 4 Bytes = 90C974Deleted Files = 3 Bytes = 79D3ECFiles w/Errors = 0 Bytes = 0The following is sample output from the show flash: command:
RouterB> show flash:System flash directory:File Length Name/status1 4137888 c3640-c2is-mz.Feb24[4137952 bytes used, 12639264 available, 16777216 total]16384K bytes of processor board System flash (Read/Write)\The following example shows detailed information about the second partition in internal Flash memory:
RouterB# show flash:2System flash directory, partition 2:File Length Name/status1 1711088 dirt/images/c3600-i-mz[1711152 bytes used, 15066064 available, 16777216 total]16384K bytes of processor board System flash (Read/Write)Class B Flash File Systems
Table 49 describes the significant fields shown in the displays.
The following is sample output from the show flash: all command:
RouterB> show flash: allPartition Size Used Free Bank-Size State Copy Mode1 16384K 4040K 12343K 4096K Read/Write DirectSystem flash directory:File Length Name/statusaddr fcksum ccksum1 4137888 c3640-c2is-mz.Feb240x40 0xED65 0xED65[4137952 bytes used, 12639264 available, 16777216 total]16384K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name1 1 01D5 1024KB AMD 29F0802 1 01D5 1024KB AMD 29F0803 1 01D5 1024KB AMD 29F0804 1 01D5 1024KB AMD 29F0801 2 01D5 1024KB AMD 29F0802 2 01D5 1024KB AMD 29F0803 2 01D5 1024KB AMD 29F0804 2 01D5 1024KB AMD 29F0801 3 01D5 1024KB AMD 29F0802 3 01D5 1024KB AMD 29F0803 3 01D5 1024KB AMD 29F0804 3 01D5 1024KB AMD 29F0801 4 01D5 1024KB AMD 29F0802 4 01D5 1024KB AMD 29F0803 4 01D5 1024KB AMD 29F0804 4 01D5 1024KB AMD 29F080The following is sample output from the show flash: all command on a router with Flash memory partitioned:
Router# show flash: allSystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 3459K 637K 4096K Read Only RXBOOT-FLH2 4096K 3224K 872K 4096K Read/Write DirectSystem flash directory, partition 1:File Length Name/statusaddr fcksum ccksum1 3459720 master/igs-bfpx.100-4.30x40 0x3DE1 0x3DE1[3459784 bytes used, 734520 available, 4194304 total]4096K bytes of processor board System flash (Read ONLY)Chip Bank Code Size Name1 1 89A2 1024KB INTEL 28F008SA2 1 89A2 1024KB INTEL 28F008SA3 1 89A2 1024KB INTEL 28F008SA4 1 89A2 1024KB INTEL 28F008SAExecuting current image from System flash [partition 1]System flash directory, partition2:File Length Name/statusaddr fcksum ccksum1 3224008 igs-kf.1000x40 0xEE91 0xEE91[3224072 bytes used, 970232 available, 4194304 total]4096K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name1 2 89A2 1024KB INTEL 28F008SA2 2 89A2 1024KB INTEL 28F008SA3 2 89A2 1024KB INTEL 28F008SA4 2 89A2 1024KB INTEL 28F008SAThe following is sample output from the show flash: chips command:
RouterB> show flash: chips16384K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name1 1 01D5 1024KB AMD 29F0802 1 01D5 1024KB AMD 29F0803 1 01D5 1024KB AMD 29F0804 1 01D5 1024KB AMD 29F0801 2 01D5 1024KB AMD 29F0802 2 01D5 1024KB AMD 29F0803 2 01D5 1024KB AMD 29F0804 2 01D5 1024KB AMD 29F0801 3 01D5 1024KB AMD 29F0802 3 01D5 1024KB AMD 29F0803 3 01D5 1024KB AMD 29F0804 3 01D5 1024KB AMD 29F0801 4 01D5 1024KB AMD 29F0802 4 01D5 1024KB AMD 29F0803 4 01D5 1024KB AMD 29F0804 4 01D5 1024KB AMD 29F080The following is sample output from the show flash: detailed command:
RouterB> show flash: detailedSystem flash directory:File Length Name/statusaddr fcksum ccksum1 4137888 c3640-c2is-mz.Feb240x40 0xED65 0xED65[4137952 bytes used, 12639264 available, 16777216 total]16384K bytes of processor board System flash (Read/Write)The following is sample output from the show flash: err command:
RouterB> show flash: errSystem flash directory:File Length Name/status1 4137888 c3640-c2is-mz.Feb24[4137952 bytes used, 12639264 available, 16777216 total]16384K bytes of processor board System flash (Read/Write)Chip Bank Code Size Name erase write1 1 01D5 1024KB AMD 29F080 0 02 1 01D5 1024KB AMD 29F080 0 03 1 01D5 1024KB AMD 29F080 0 04 1 01D5 1024KB AMD 29F080 0 01 2 01D5 1024KB AMD 29F080 0 02 2 01D5 1024KB AMD 29F080 0 03 2 01D5 1024KB AMD 29F080 0 04 2 01D5 1024KB AMD 29F080 0 01 3 01D5 1024KB AMD 29F080 0 02 3 01D5 1024KB AMD 29F080 0 03 3 01D5 1024KB AMD 29F080 0 04 3 01D5 1024KB AMD 29F080 0 01 4 01D5 1024KB AMD 29F080 0 02 4 01D5 1024KB AMD 29F080 0 03 4 01D5 1024KB AMD 29F080 0 04 4 01D5 1024KB AMD 29F080 0 0See Table 49 for a description of the fields. The show flash: err command also displays two extra fields: erase and write. The erase field indications the number of erase errors. The write field indicates the number of write errors.
The following is sample output from the show flash summary command on a router with Flash memory partitioned. The partition in the Read Only state is the partition from which the Cisco IOS image is being executed.
Router# show flash summarySystem flash partition information:Partition Size Used Free Bank-Size State Copy-Mode1 4096K 2048K 2048K 2048K Read Only RXBOOT-FLH2 4096K 2048K 2048K 2048K Read/Write DirectRelated Commands
show aliases
To display all alias commands, or the alias commands in a specified mode, use the show aliases command in EXEC mode.
show aliases [mode]
Syntax Description
mode
(Optional) Name of a specific command or configuration mode. Specifies that only aliases configured for this mode should be displayed.
Command Modes
EXEC
Command History
10.3
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
When used without the mode argument, this command will display all aliases currently configured on the system. Use the mode argument to display only the aliases configured for the specified command mode.
To display a list of the command mode keywords available for your system, use the show aliases ? command.
The following is sample output from the show aliases exec commands. The aliases configured for commands in EXEC mode are displayed.
Router> show aliases execExec mode aliases:h helplo logoutp pingr resumes showw whereRelated Commands
show alignment
To display alignment errors and spurious memory access errors, use the show alignment command in privileged EXEC mode.
show alignment
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
Alignment Errors
Alignment errors are caused by misaligned reads and writes. For example, a two-byte read where the memory address is not an even multiple of two bytes is an alignment error. Alignment errors are caused by a software defect.
Alignment errors are reported in the system log and recorded by the router. Output from the show alignment command provides a record of these errors along with potentially useful traceback information. The traceback information for alignment errors can generally be decoded to reveal the function causing the alignment problems.
Spurious Memory Access Errors
Spurious memory access errors occur when a software process attempts to access memory in a restricted location. A read operation to this region of memory is usually caused when a nonexisting value is returned to a function in the software, or in other words, when a null pointer is passed to a function.
Spurious memory access errors are counted and recorded, if possible, by the software. This information is displayed with the show alignment command.
Examples
The following is sample output from the show alignment command when alignment detection is disabled. To enable alignment detection, use the enable command to enter privileged EXEC mode
Router# show alignmentUnaligned handler is disabledRouter#
The following is sample output from the show alignment command when there are no alignment or spurious memory errors:
Router# show alignmentNo alignment data has been recorded.No spurious memory references have been recorded.Router#The following is sample output from the show alignment command when there are only alignment errors. The traceback information is necessary to determine the cause and the fix of the alignment errors.
Router# show alignmentTotal Corrections 134, Recorded 1, Reads 134, Writes 0Initial InitialAddress Count Access Type Traceback1A014C5 134 32bit read 0x6012F538 0x601338F8 0x601344D8 0x6022D528No spurious memory references have been recorded.Router#Table 50 describes the significant fields shown in the display.
The following is sample output from the show alignment command when there are only spurious memory access errors:
Router# show alignmentNo alignment data has been recorded.Total Spurious Accesses 50, Recorded 3Address Count TracebackE 10 0x605351A0 0x603CA084 0x606C4060 0x606D6368 0x60743284 0x60743270E 20 0x605351A0 0x6036EE7C 0x606C4060 0x606D6368 0x60743284 0x60743270E 20 0x605351A0 0x603C998C 0x606D53EC 0x606C4060 0x606D6368 0x60743284Router#Table 51 describes the significant fields shown in the display.
The following is sample output from the show alignment command when there are alignment errors and spurious memory access errors:
Router# show alignmentTotal Corrections 134, Recorded 1, Reads 134, Writes 0Initial InitialAddress Count Access Type Traceback1A014C5 134 32bit read 0x6012F538 0x601338F8 0x601344D8 0x6022D528Total Spurious Accesses 50, Recorded 3Address Count TracebackE 10 0x605351A0 0x603CA084 0x606C4060 0x606D6368 0x60743284 0x60743270E 20 0x605351A0 0x6036EE7C 0x606C4060 0x606D6368 0x60743284 0x60743270E 20 0x605351A0 0x603C998C 0x606D53EC 0x606C4060 0x606D6368 0x60743284 x60743270Related Commands
enable
To enter privileged EXEC mode, or any other security level set by a system administrator, use the enable command in user EXEC or privileged EXEC mode.
show archive
To display information about the files saved in the Cisco IOS configuration archive, use the show archive command in privileged EXEC mode.
show archive
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC
Command History
Examples
The following is sample output from the show archive command:
Router# show archiveThere are currently 1 archive configurations saved.The next archive file will be named disk0:myconfig-2Archive # Name01 disk0:myconfig-1 <- Most Recent234567891011121314The following is sample output from the show archive command after several archive files of the running configuration have been saved. In this example, the maximum number of archive files to be saved is set to three.
Router# show archiveThere are currently 3 archive configurations saved.The next archive file will be named disk0:myconfig-8Archive # Name01 :Deleted2 :Deleted3 :Deleted4 :Deleted5 disk0:myconfig-56 disk0:myconfig-67 disk0:myconfig-7 <- Most Recent891011121314Table 52 describes the significant fields shown in the displays.
Related Commands
show archive config differences
To perform a line-by-line comparison of any two configuration files (accessible through the Cisco IOS File System [IFS]) and generate a list of the differences between them, use the show archive config differences command in user EXEC or privileged EXEC mode.
show archive config differences [filename1(path)[filename2(path)][ignorecase]]
Syntax Description
Command Default
If the filename1(path) and filename2(path) arguments are not specified, the first configuration file is assumed to be the running configuration file and the second to be the startup configuration file.
If only the filename1(path) argument is specified, the second configuration file is assumed to be the running configuration file.
Command Modes
User EXEC
Privileged EXECCommand History
Usage Guidelines
Interpreting the output of the show archive config differences command is dependent on the order in which the two files are configured. Each entry in the generated output list is prefixed with a unique text symbol to indicate the type of difference found. The text symbols and their meanings are as follows:
•
•
•
Examples
In this example, a diff operation is performed on the running and startup configuration files. Table 53 shows the configuration files used for this example.
The following is sample output from the show archive config differences command. This sample output displays the results of the diff operation performed on the configuration files in Table 53.
Router# show archive config differences running-config startup-config+ip subnet-zero
+ip name-server 10.4.4.4
+voice dnis-map 1
+dnis 111
interface Ethernet1/0
+no ip address
+shutdown
+ip default-gateway 10.5.5.5
+ip classless
+access-list 110 deny ip any host 10.1.1.1
+access-list 110 deny ip any host 10.1.1.2
+access-list 110 deny ip any host 10.1.1.3
+snmp-server community private RW
-no ip subnet-zero
interface Ethernet1/0
-ip address 10.7.7.7 255.0.0.0
-no ip classless
-snmp-server community public RO
Related Commands
show archive config incremental-diffs
To perform a line-by-line comparison of a specified configuration file to the running configuration file and generate a list of the configuration lines that do not appear in the running configuration file, use the show archive config incremental-diffs command in user EXEC or privileged EXEC mode.
show archive config incremental-diffs file
Syntax Description
Command Modes
User EXEC
Privileged EXECCommand History
Usage Guidelines
When an incremental diff operation is performed, a list of the configuration lines that do not appear in the running configuration file (in other words, configuration lines that only appear in the specified file that is being compared to the running configuration file) is generated as output. An exclamation point (!) with descriptive comments is used to identify order-sensitive configuration lines whose location is different in the specified configuration file than in the running configuration file.
Examples
In this example, an incremental diff operation is performed on the startup and running configuration files. Table 54 shows the configuration files used for this example.
The following is sample output from the show archive config incremental-diffs command. This sample output displays the results of the incremental diff operation performed on the configuration files in Table 54.
Router# show archive config incremental-diffs nvram:startup-configip subnet-zero
ip name-server 10.4.4.4
voice dnis-map 1
dnis 111
interface Ethernet1/0
no ip address
shutdown
ip default-gateway 10.5.5.5
ip classless
access-list 110 deny ip any host 10.1.1.1
access-list 110 deny ip any host 10.1.1.2
access-list 110 deny ip any host 10.1.1.3
snmp-server community private RW
Related Commands
show archive log config
To display entries from the configuration log, use the show archive log config command in privileged EXEC mode.
show archive log config {all | record-number [end-number] | user username [session session-number] record-number [end-number] | statistics} [provisioning] [contenttype {plaintext | xml}] [persistent]
Syntax Description
Command Modes
Privileged EXEC
Command History
Usage Guidelines
If you do not specify the all keyword, you must specify a record number with the record-number argument. You can optionally specify an end record number with the end-number argument to display a range of records. If you use the end-number argument to specify a record number that does not exist, all records after the starting record number with a record number lower than that specified with the end-number argument are displayed.
Specifying the provisioning keyword results in the display appearing as it would in a configuration file, rather than in tabular format. This output includes commands used to change configuration modes and logged configuration commands. This output can be used to set up another router if desired.
Examples
The following is sample output from the show archive log config command, which displays configuration log entry numbers 1 and 2:
Router# show archive log config 1 2
idx sess user@line Logged command1 1 user1@console logging enable2 1 user1@console logging size 200Table 55 describes the significant fields shown in the display.
The following example results in the display of all configuration log files as they would appear in a configuration file rather than in tabular format. In addition to displaying logged commands, the example shows the commands used to change configuration modes that are required to correctly apply the logged commands.
Router# show archive log config all provisioningarchivelog configlogging enablelogging size 200The following example results in the display of memory usage statistics for the configuration log:
Router# show archive log config statisticsConfig Log Session Info:Number of sessions being tracked: 1Memory being held: 3910 bytesTotal memory allocated for session tracking: 3910 bytesTotal memory freed from session tracking: 0 bytesConfig Log log-queue Info:Number of entries in the log-queue: 3Memory being held in the log-queue: 671 bytesTotal memory allocated for log entries: 671 bytesTotal memory freed from log entries:: 0 bytesThe output is self-explanatory.
The following example shows the contents of the archive log in XML format:
Router# show archive log config all contenttype xml<?xml version="1.0" encoding="UTF-8"?><configLoggerMsg version="1.0"><configChanged><changeInfo><user>jdoe</user><async><port>con_0</port></async><when><absoluteTime>2003-04-23T20:25:19.847Z</absoluteTime></when></changeInfo><logComment>begin test test1</logComment></configChanged><configChanged><changeInfo><user>jdoe</user><async><port>con_0</port></async><when><absoluteTime>2003-04-23T20:27:19.847Z</absoluteTime></when></changeInfo><changeItem><context/><enteredCommand><cli>interface e0</cli></enteredCommand><prcResultType><prcSuccess><change>PRC_CHANGE</change></prcSuccess></prcResultType><oldConfigState><cli></cli></oldConfigState><newConfigState><cli>interface e0</cli></newConfigState></changeItem></configChanged><configChanged><changeInfo><user>jdoe</user><async><port>con_0</port></async><when><absoluteTime>2003-04-23T20:28:19.847Z</absoluteTime></when></changeInfo><changeItem><context><cli>interface e0</cli></context><enteredCommand><cli>ip address 10.1.1.1 255.255.255.0</cli></enteredCommand><prcResultType><prcSuccess><change>PRC_CHANGE</change></prcSuccess></prcResultType><oldConfigState/><newConfigState><cli>ip address 10.1.1.1 255.255.255.0</cli></newConfigState></changeItem></configChanged><configChanged><changeInfo><user>jdoe</user><async><port>con_0</port></async><when><absoluteTime>2003-04-23T20:29:19.847Z</absoluteTime></when></changeInfo><logComment>end test test1</logComment></configChanged></configLoggerMsg>show async bootp
To display the extended BOOTP request parameters that have been configured for asynchronous interfaces, use the show async bootp command in privileged EXEC mode.
show async bootp
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC
Command History
10.0
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Examples
The following is sample output from the show async bootp command:
Router# show async bootpThe following extended data will be sent in BOOTP responses:bootfile (for address 192.168.1.1) "pcboot"bootfile (for address 172.16.1.111) "dirtboot"subnet-mask 255.255.0.0time-offset -3600time-server 192.168.1.1Table 56 describes the significant fields shown in the display.
Related Commands
async-bootp
Configures extended BOOTP requests for asynchronous interfaces as defined in RFC 1084.
show autoupgrade configuration unknown
To display all of the unknown start-up configuration lines that the auto-upgraded Cisco IOS software image does not understand, use the show autoupgrade configuration unknown command in privileged EXEC mode.
show autoupgrade configuration unknown
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Use the show autoupgrade configuration unknown command to view any invalid start-up configuration. This command prints invalid start-up configuration data only when run from an an image which was upgraded using the Auto-Upgrade Manager. This command output is useful when you are upgrading to an image with a different feature set.
Examples
The following example shows how to view the invalid start-up configuration lines that the Cisco IOS software image, upgraded on the router using AUM, does not understand:
Router# show autoupgrade configuration unknown! Config Lines not understood by the current image:voice-card 0no dspfarmcrypto pki trustpoint aum_cisco_caenrollment terminalrevocation-check nonecrypto pki certificate chain aum_cisco_cacertificate ca 40DCB71E54EE24CBE5326F8006BBA4F6 nvram:SecureServer#A4F6CA.cerno ip http secure-servertransport output lat pad telnet rlogin lapb-ta mop udptn v120 sshTotal 9 Invalid Config LinesRouter#Related Commands
show bootflash:
To display information about the bootflash: file system, use the show bootflash: command in user EXEC or privileged EXEC mode.
show bootflash: [all | chips | filesys]
Syntax Description
all
(Optional) Displays all possible Flash information.
chips
(Optional) Displays information about the Flash chip.
filesys
(Optional) Displays information about the file system.
Defaults
This command has no default settings.
Command Modes
User EXEC
Privileged EXECCommand History
Examples
This example shows how to display information about the file system status:
Router> show bootflash: filesys-------- F I L E S Y S T E M S T A T U S --------Device Number = 0DEVICE INFO BLOCK: bootflashMagic Number = 6887635 File System Vers = 10000 (1.0)Length = 1000000 Sector Size = 40000Programming Algorithm = 39 Erased State = FFFFFFFFFile System Offset = 40000 Length = F40000MONLIB Offset = 100 Length = C628Bad Sector Map Offset = 3FFF8 Length = 8Squeeze Log Offset = F80000 Length = 40000Squeeze Buffer Offset = FC0000 Length = 40000Num Spare Sectors = 0Spares:STATUS INFO:WritableNO File Open for WriteComplete StatsNo Unrecovered ErrorsNo Squeeze in progressUSAGE INFO:Bytes Used = 917CE8 Bytes Available = 628318Bad Sectors = 0 Spared Sectors = 0OK Files = 2 Bytes = 917BE8Deleted Files = 0 Bytes = 0Files w/Errors = 0 Bytes = 0Router>This example shows how to display image information:
Router> show bootflash:-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. image 8C5A393A 237E3C 14 2063804 Aug 23 1999 16:18:45 c6msfc-boot-mz2 .. image D86EE0AD 957CE8 9 7470636 Sep 20 1999 13:48:49 rp.halleyRouter>This example shows how to display all bootflash information:
Router> show bootflash: all-#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------ name1 .. image 8C5A393A 237E3C 14 2063804 Aug 23 1999 16:18:45 c6msfc-boot-mz2 .. image D86EE0AD 957CE8 9 7470636 Sep 20 1999 13:48:49 rp.halley6456088 bytes available (9534696 bytes used)-------- F I L E S Y S T E M S T A T U S --------Device Number = 0DEVICE INFO BLOCK: bootflashMagic Number = 6887635 File System Vers = 10000 (1.0)Length = 1000000 Sector Size = 40000Programming Algorithm = 39 Erased State = FFFFFFFFFile System Offset = 40000 Length = F40000MONLIB Offset = 100 Length = C628Bad Sector Map Offset = 3FFF8 Length = 8Squeeze Log Offset = F80000 Length = 40000Squeeze Buffer Offset = FC0000 Length = 40000Num Spare Sectors = 0Spares:STATUS INFO:WritableNO File Open for WriteComplete StatsNo Unrecovered ErrorsNo Squeeze in progressUSAGE INFO:Bytes Used = 917CE8 Bytes Available = 628318Bad Sectors = 0 Spared Sectors = 0OK Files = 2 Bytes = 917BE8Deleted Files = 0 Bytes = 0Files w/Errors = 0 Bytes = 0Router>Related Commands
delete
Marks files on bootflash for deletion.
squeeze
Removes files from bootflash that have been marked for deletion.
show bootvar
To display the contents of the BOOT variable, the name of the configuration file pointed to by the CONFIG_FILE variable, the contents of the BOOTLDR variable, and the configuration register setting, use the show bootvar command in user EXEC or privileged EXEC mode.
show bootvar
Syntax Description
This command has no arguments or keywords.
Command Modes
User EXEC
Privileged EXECCommand History
Usage Guidelines
Supported Platforms Other than the Cisco 7600 Series Router
The show bootvar command replaces the show boot command.
The show bootvar command allows you to view the current settings for the following variables:
•
•
•
The BOOT variable specifies a list of bootable images on various devices. The CONFIG_FILE variable specifies the configuration file used during system initialization. The BOOTLDR variable specifies the flash device and filename containing the rxboot image that ROM uses for booting. You set these variables with the boot system, boot config, and boot bootldr global configuration commands, respectively.
When you use this command on a device with multiple Route Switch Processor (RSP) cards (Dual RSPs), this command also shows you the variable settings for both the master and slave RSP card.
Cisco 7600 Series Router
The show bootvar command displays information about the BOOT environmental variable.
The command output depends on how you configure the boot statement as follows:
•
•
The show bootvar command is available from the switch processor command-line interface (CLI) and the route processor CLI. From the switch processor CLI, the display is always bootflash. With either the bootflash or the sup-bootflash boot statement, the switch boots correctly. You should use sup-bootflash in the boot configuration statement because the image is stored in the switch processor bootflash; the route processor sees the image as sup-bootflash.
The number displayed after the image name (for example, c6sup12-js-mz.121-13.E,12) indicates the number of times that the Cisco 7600 series router tries to reboot the file before giving up.
Examples
Supported Platforms Other than the Cisco 7600 Series Router
The following is sample output from the show bootvar command:
Router# show bootvarBOOT variable =CONFIG_FILE variable = nvram:Current CONFIG_FILE variable = slot0:router-configBOOTLDR variable not existConfiguration register is 0x0In this example, the BOOT variable contains a null string; that is no bootable images are specified.
The CONFIG_FILE variable points to the configuration file in NVRAM as the startup (initialization) configuration. The run-time value for the CONFIG_FILE variable points to the router-configuration file on the flash memory card inserted in the first slot of the RSP card. That is, during the run-time configuration, you have modified the CONFIG_FILE variable using the boot config command, but you have not saved the run-time configuration to the startup configuration. To save your run-time configuration to the startup configuration, use the copy system:running-config nvram:startup-config command. If you do not save the run-time configuration to the startup configuration, then the system reverts to the saved CONFIG_FILE variable setting for initialization information upon reload. In this sample, the system reverts to NVRAM for the startup configuration file.
The BOOTLDR variable does not yet exist. That is, you have not created the BOOTLDR variable using the boot bootldr global configuration command.
The following example is output from the show bootvar command for a Cisco 7513 router configured for high system availability (HSA):
Router# show bootvarBOOT variable =CONFIG_FILE variable =Current CONFIG_FILE variable =BOOTLDR variable does not existConfiguration register is 0x0current slave is in slot 7BOOT variable =CONFIG_FILE variable =BOOTLDR variable does not existConfiguration register is 0x0Table 57 describes the significant fields shown in the displays.
Cisco 7600 Series Router
This example shows how to display information about the BOOT environment variable:
Router# show bootvarBOOT variable = sup-bootflash:c6sup12-js-mz.121-13.E,12CONFIG_FILE variable =BOOTLDR variable = bootflash:c6msfc2-boot-mz.121-13.E.binConfiguration register is 0x2102Standby is upStandby has 112640K/18432K bytes of memory.Standby BOOT variable = bootflash:c6sup12-js-mz.121-13.E,12Standby CONFIG_FILE variable =Standby BOOTLDR variable = bootflash:c6msfc2-boot-mz.121-13.E.binStandby Configuration register is 0x2102The number displayed after the image name (for example, c6sup12-js-mz.121-13.E,12) indicates the number of times that the Cisco 7600 series router tries to reboot the file before giving up.
Related Commands
show buffers
To display statistics for the buffer pools on the network server when Cisco IOS or Cisco IOS Software Modularity images are running, use the show buffers command in user EXEC or privileged EXEC mode.
show buffers [{address hex-address | failures | pool pool-name | processes | {all | assigned [process-id] | free | old | input-interface interface-type interface-number} [pool pool-name]} [dump | header | packet]]
Syntax Description
Command Default
If no options are specified, all buffer pool information is displayed.
Command Modes
User EXEC (>)
Privileged EXEC (#)Command History
Examples
Example output varies between Cisco IOS software images and Cisco IOS Software Modularity software images. To view the appropriate output, choose one of the following sections:
•
Cisco IOS Software
The following is sample output from the show buffers command with no arguments, showing all buffer pool information:
Router# show buffersBuffer elements:398 in free list (500 max allowed)1266 hits, 0 misses, 0 createdPublic buffer pools:Small buffers, 104 bytes (total 50, permanent 50):50 in free list (20 min, 150 max allowed)551 hits, 0 misses, 0 trims, 0 createdMiddle buffers, 600 bytes (total 25, permanent 25):25 in free list (10 min, 150 max allowed)39 hits, 0 misses, 0 trims, 0 createdBig buffers, 1524 bytes (total 50, permanent 50):49 in free list (5 min, 150 max allowed)27 hits, 0 misses, 0 trims, 0 createdVeryBig buffers, 4520 bytes (total 10, permanent 10):10 in free list (0 min, 100 max allowed)0 hits, 0 misses, 0 trims, 0 createdLarge buffers, 5024 bytes (total 0, permanent 0):0 in free list (0 min, 10 max allowed)0 hits, 0 misses, 0 trims, 0 createdHuge buffers, 18024 bytes (total 0, permanent 0):0 in free list (0 min, 4 max allowed)0 hits, 0 misses, 0 trims, 0 createdInterface buffer pools:Ethernet0 buffers, 1524 bytes (total 64, permanent 64):16 in free list (0 min, 64 max allowed)48 hits, 0 fallbacks16 max cache size, 16 in cacheEthernet1 buffers, 1524 bytes (total 64, permanent 64):16 in free list (0 min, 64 max allowed)48 hits, 0 fallbacks16 max cache size, 16 in cacheSerial0 buffers, 1524 bytes (total 64, permanent 64):16 in free list (0 min, 64 max allowed)48 hits, 0 fallbacks16 max cache size, 16 in cacheSerial1 buffers, 1524 bytes (total 64, permanent 64):16 in free list (0 min, 64 max allowed)48 hits, 0 fallbacks16 max cache size, 16 in cacheTokenRing0 buffers, 4516 bytes (total 48, permanent 48):0 in free list (0 min, 48 max allowed)48 hits, 0 fallbacks16 max cache size, 16 in cacheTokenRing1 buffers, 4516 bytes (total 32, permanent 32):32 in free list (0 min, 48 max allowed)16 hits, 0 fallbacks0 failures (0 no memory)The following is sample output from the show buffers command with no arguments, showing onlybuffer pool information for Huge buffers. This output shows a highest total of five Huge buffers created five days and 18 hours before the command was issued.
Router# show buffersHuge buffers, 18024 bytes (total 5, permanent 0, peak 5 @ 5d18h): 4 in free list (3 min, 104 max allowed) 0 hits, 1 misses, 101 trims, 106 created 0 failures (0 no memory)The following is sample output from the show buffers command with no arguments, showing only buffer pool information for Huge buffers. This output shows a highest total of 184 Huge buffers created one hour, one minute, and 15 seconds before the command was issued.
Router# show buffersHuge buffers, 65280 bytes (total 4, permanent 2, peak 184 @ 01:01:15):4 in free list (0 min, 4 max allowed)32521 hits, 143636 misses, 14668 trims, 14670 created143554 failures (0 no memory)The following is sample output from the show buffers command with an interface type and interface number:
Router# show buffers Ethernet 0Ethernet0 buffers, 1524 bytes (total 64, permanent 64):16 in free list (0 min, 64 max allowed)48 hits, 0 fallbacks16 max cache size, 16 in cache
Table 58 describes the significant fields shown in the display.
Cisco IOS Software Modularity
The following is sample output from the show buffers command using a Cisco IOS Modularity image from Cisco IOS Release 12.2(18)SXF4 and later releases. Two new output fields were introduced—Public buffer heads and Temporary buffer heads—and are shown within comments in the following sample output.
Router# show buffersBuffer elements:500 in free list (500 max allowed)106586 hits, 0 misses, 0 createdPublic buffer pools:Small buffers, 104 bytes (total 50, permanent 50, peak 54 @ 1d13h):49 in free list (20 min, 150 max allowed)54486 hits, 0 misses, 4 trims, 4 created0 failures (0 no memory)Middle buffers, 600 bytes (total 25, permanent 25, peak 27 @ 1d13h):25 in free list (10 min, 150 max allowed)20 hits, 0 misses, 2 trims, 2 created0 failures (0 no memory)Big buffers, 1536 bytes (total 50, permanent 50):50 in free list (40 min, 150 max allowed)6 hits, 0 misses, 0 trims, 0 created0 failures (0 no memory)VeryBig buffers, 4520 bytes (total 10, permanent 10):10 in free list (0 min, 100 max allowed)0 hits, 0 misses, 0 trims, 0 created0 failures (0 no memory)Large buffers, 5024 bytes (total 0, permanent 0):0 in free list (0 min, 10 max allowed)0 hits, 0 misses, 0 trims, 0 created0 failures (0 no memory)Huge buffers, 18024 bytes (total 1, permanent 0, peak 1 @ 1d13h):0 in free list (0 min, 4 max allowed)1 hits, 0 misses, 0 trims, 0 created0 failures (0 no memory)! Start of Cisco IOS Software Modularity fieldsPublic buffer headers:Header buffers, 880 bytes (total 1000, peak 142 @ 1d13h):864 in permanent free list142 hits, 0 missesTemporary buffer headers:Header buffers, 896 bytes (total 0):0 in free list0 hits, 0 misses, 0 trims, 0 created0 failures! End of Cisco IOS Software Modularity fieldsInterface buffer pools:Logger Pool buffers, 600 bytes (total 150, permanent 150):150 in free list (150 min, 150 max allowed)22 hits, 0 missesTable 59 describes the significant fields shown in the display that are different from the fields in Table 58.
show buffers summary
To display the buffers usage summary for all caller and for all buffer pools, use the show buffers summary command in privileged EXEC mode.
show buffers summary
Syntax Description
This command has no arguments or keywords.
Command Default
All buffer usage summary information is displayed.
Command Modes
Privileged EXEC (#)
Command History
Examples
The following is sample output from the show buffers summary command:
Router# show buffers summaryPool: SmallNon-aligned packet(s): 25Caller Summarypc = 0x40612F74 count = 37pc = 0x418D77FC count = 24pc = 0x418571E0 count = 1pc = 0x41860488 count = 1Pool: MediumNon-aligned packet(s): 39Caller Summarypc = 0x418D77FC count = 38pc = 0x41860488 count = 1pc = 0x40612F74 count = 23Pool: MiddleNon-aligned packet(s): 333Caller Summarypc = 0x418D77FC count = 333pc = 0x40612F74 count = 2pc = 0x4049FFD8 count = 3Pool: BigNon-aligned packet(s): 32078Caller Summarypc = 0x418D77FC count = 32006pc = 0x4065FD40 count = 7pc = 0x409E915C count = 1pc = 0x40652A58 count = 65Pool: VeryBigNon-aligned packet(s): 10Caller Summarypc = 0x418D77FC count = 10Pool: LargeNon-aligned packet(s): 8Caller Summarypc = 0x418D77FC count = 8Pool: HugeNon-aligned packet(s): 2Caller Summarypc = 0x418D77FC count = 2Table 58 describes the significant fields shown in the display.
Related Commands
show c2600
To display information for troubleshooting the Cisco 2600 series router, use the show c2600 command in EXEC mode.
show c2600
Syntax Description
This command has no arguments or keywords.
Command Modes
EXEC
Command History
11.3 XA
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
The show c2600 command provides complex troubleshooting information that pertains to the platform's shared references rather than to a specific interface.
Examples
The following is sample output from the show c2600 command:
Router# show c2600C2600 Platform Information:Interrupts:Assigned Handlers...Vect Handler # of Ints Name00 801F224C 00000000 Xilinx bridge error interrupt01 801DE768 0D3EE155 MPC860 TIMER INTERRUPT02 801E94E0 0000119E 16552 Con/Aux Interrupt04 801F0D94 00000000 PA Network Management Int Handler05 801E6C34 00000000 Timebase Reference Interrupt06 801F0DE4 00002C1A PA Network IO Int Handler07 801F0EA0 0000015D MPC860 CPM INTERRUPT14 801F224C 00000000 Xilinx bridge error interruptIOS Priority Masks...Level 00 = [ EF020000 ]Level 01 = [ EC020000 ]Level 02 = [ E8020000 ]Level 03 = [ E0020000 ]Level 04 = [ E0020000 ]Level 05 = [ E0020000 ]Level 06 = [ C0020000 ]Level 07 = [ 00000000 ]SIU_IRQ_MASK = FFFFFFFF SIEN = EF02xxxx Current Level = 00Spurious IRQs = 00000000 SIPEND = 0000xxxxInterrupt Throttling:Throttle Count = 00000000 Timer Count = 00000000Netint usec = 00000000 Netint Mask usec = 000003E8Active = 0 Configured = 0Longest IRQ = 00000000IDMA Status:Requests = 00000349 Drops = 00000000Complete = 00000349 Post Coalesce Frames = 00000349Giant = 00000000Available Blocks = 256/256ISP Status:Version string burned in chip: "A986122997"New version after next program operation: "B018020998"ISP family type: "2096"ISP chip ID: 0x0013Device is programmableTable 61 describes the significant fields shown in the display.
Related Commands
show c7200
To display information about the CPU and midplane for Cisco 7200 series routers, use the show c7200 command in EXEC mode.
show c7200
Syntax Description
This command has no arguments or keywords.
Command Modes
EXEC
Command History
11.2
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
You can use the output of this command to determine whether the hardware version level and upgrade is current. The information is generally useful for diagnostic tasks performed by technical support only.
Examples
The following is sample output from the show c7200 command:
Router# show c7200C7200 Network IO Interrupt Throttling:throttle count=0, timer count=0active=0, configured=0netint usec=3999, netint mask usec=200C7200 Midplane EEPROM:Hardware revision 1.2 Board revision A0Serial number 2863311530 Part number 170-43690-170Test history 0xAA RMA number 170-170-170MAC=0060.3e28.ee00, MAC Size=1024EEPROM format version 1, Model=0x6EEPROM contents (hex):0x20: 01 06 01 02 AA AA AA AA AA AA AA AA 00 60 3E 280x30: EE 00 04 00 AA AA AA AA AA AA AA 50 AA AA AA AAC7200 CPU EEPROM:Hardware revision 2.0 Board revision A0Serial number 3509953 Part number 73-1536-02Test history 0x0 RMA number 00-00-00EEPROM format version 1EEPROM contents (hex):0x20: 01 15 02 00 00 35 8E C1 49 06 00 02 00 00 00 000x30: 50 00 00 00 FF FF FF FF FF FF FF FF FF FF FF FFshow catalyst6000
To display the information about the Cisco 7600 series router, use the show catalyst6000 command in user EXEC or privileged EXEC mode.
show catalyst6000 {all | chassis-mac-address | switching-clock | traffic-meter}
Syntax Description
Defaults
all
Command Modes
User EXEC
Privileged EXECCommand History
Usage Guidelines
If you enter the switching-clock keywords, the Cisco 7600 series router displays whether switching of the redundant clock sources on the backplane is allowed if the active clock source fails.
The Cisco 7600 series router has either 64 or 1024 MAC addresses that are available to support the software features. You can enter the show catalyst6000 chassis-mac-address command to display the MAC-address range on your chassis.
Examples
This example shows how to display the MAC-address ranges and the current and peak traffic-meter readings:
Router> show catalyst6000 allchassis MAC addresses: 64 addresses from 0001.6441.60c0 to 0001.6441.60fftraffic meter = 0% Never clearedpeak = 0% reached at 08:14:38 UTC Wed Mar 19 2003switching-clock: clock switchover and system reset is allowedRouter>This example shows how to display the MAC-address ranges:
Router# show catalyst6000 chassis-mac-addresschassis MAC addresses: 1024 addresses from 00d0.004c.1800 to 00d0.004c.1c00Router#This example shows how to display the current and peak traffic-meter readings:
Router> show catalyst6000 traffic-metertraffic meter = 0% peak = 0% at 09:57:58 UTC Mon Nov 6 2000Router#This example shows how to display the failure recovery mode of the switching clock:
Router> show catalyst6000 switching-clockswitching-clock: clock switchover and system reset is allowedRouter>Related Commands
show cls
To display the current status of all Cisco link services (CLS) sessions on the router, use the show cls command in EXEC mode.
show cls [brief]
Syntax Description
Defaults
Without the brief keyword, displays complete output.
Command Modes
EXEC
Command History
11.0
This command was introduced in a release prior to Cisco IOS Release 11.0.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
The Cisco link service (CLS) is used as the interface between data link users (DLUs), such as DLSw, LAN Network Manager (LNM), downstream physical unit (DSPU), and SNASw, and their corresponding data link circuits (DLCs) such as Logic Link Control (LLC), VDLC, 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 the DLU and the circuits established through CLS.
For further information about CLS, use the Release 12.2 Cisco IOS Bridging and IBM Networking Configuration Guide.
Examples
The following is sample output from the show cls command:
IBD-4500B# show clsDLU user:SNASWSSap:0x04 VDLC VDLC650DTE:1234.4000.0001 1234.4000.0002 04 04T1 timer:0 T2 timer:0 Inact timer:0max out:0 max in:0 retry count:10XID retry:10 XID timer:5000 I-Frame:0flow:0 DataIndQ:0 DataReqQ:0DLU user:DLSWDLUPEERDLU user:DLSWDLUBridging VDLC VDLC1000Bridging VDLC VDLC650The following is sample output from the show cls brief command:
IBD-4500B# show cls briefDLU user:SNASWSSap:0x04 VDLC VDLC650DTE:1234.4000.0001 1234.4000.0002 04 04DLU user:DLSWDLUPEERDLU user:DLSWDLUBridging VDLC VDLC1000Bridging VDLC VDLC650
The examples show two DLUs—SNASw and DLSw—active in the router. SNASw uses a SAP value of 0x04, and the associated DLC port is VDLC650. SNASw has a circuit established between MAC addresses 1234.4000.0001 and 1234.4000.0002 using source and destination SAPs 04 and 04. DLSw is a bridging protocol and uses VDLC1000 and VDLC650 ports. There are no circuits in place at this time.
In the output from the show cls command (without the brief argument), the values of timers and counters applicable to this circuit are displayed.
Related Commands
stun peer-name
Enables STUN for an IP address and uses Cisco Link Services (CLS) to access the Frame Relay network.
show config id
The configuration change tracking identifier (CTID) assigns a version number to each saved version of the running-config file. To display output about the versions, use the show config id command in privileged EXEC mode.
show config id [detail]
Syntax Description
detail
(Optional) Expands the output of the command to include the ID of the last user to make a configuration change and the process in which the changes were made.
Command Default
This command is disabled by default. If this command is not entered, the management system has to query the device for the current running-config file and then compare the results to the last known configuration to determine if a change has been made.
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
This configuration infrastructure command assigns a version number that is updated every time the running-config file is changed. This version number is called the configuration change tracking identifier or CTID. The CTID can be used to compare configuration files to track configuration changes and take appropriate actions (for example, a configuration rollback). Config Logger can also use the CTID to determine if there have been any changes to the running-config file.
CTID makes the management system more efficient by presenting information that indicates a change has been made to the running-config file. Without CTID, the management system has to query the device for the current running-config file and then compare the results to the last known configuration to determine if a change has been made.
Examples
The following example shows that the current running-config file is version 4 and that this file was saved on June 15, 2006 at 7.572 seconds after 3:02 p.m.:
Router# show config idversion:4 time:2006-06-15T15:02:07.572ZThe following example shows that the current running-config file is version 9 and that this file was last saved on June 18, 2006 at 34.431 seconds after 6:34 p.m. The file was saved by the system and changed from Init:
Router# show config id detailConfiguration version : 9Last change time : 2006-06-18T18:34:34.431ZChanged by user : systemChanged from process : InitField descriptions are self-explanatory.
Related Commands
show configuration lock
To display information about the lock status of the running configuration file during a configuration replace operation, use the show configuration lock command in privileged EXEC mode.
show configuration lock
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC
Command History
Examples
The following is sample output from the show configuration lock command when the running configuration file is locked by another user.
Cisco IOS Release 12.2(25)S, Release 12.2(28)SB, Release 12.3(14)T, and Later Releases
Router# configure terminalEnter configuration commands, one per line. End with CNTL/Z.Router(config)# configuration mode exclusive ?auto Lock configuration mode automaticallymanual Lock configuration mode on-demandRouter(config)# configuration mode exclusive autoRouter(config)# endRouter# show running-config | include configurationconfiguration mode exclusive autoRouter# configure terminal !<----------- Acquires the lockEnter configuration commands, one per line. End with CNTL/Z.Router(config)# show configuration lockParser Configure Lock --------------------- Owner PID : 3 User : unknown TTY : 0 Type : EXCLUSIVE State : LOCKED Class : EXPOSED Count : 1 Pending Requests : 0 User debug info : configure terminal Router(config)# Router(config)# end ! <------------ Releases the lockThe following is sample output from the show configuration lock command when the running configuration file is not locked by another user.
Router# show configuration lockParser Configure Lock --------------------- Owner PID : -1 User : unknown TTY : -1 Type : NO LOCK State : FREE Class : unknown Count : 0 Pending Requests : 0 User debug info :Cisco IOS Release 12.0(31)S, 12.2(33)SRA, and Later Releases
Router# show configuration lockParser Configure Lock------------------------------------------------------Owner PID : 3User : unknownTTY : 0Type : EXCLUSIVEState : LOCKEDClass : EXPOSEDCount : 1Pending Requests : 0User debug info : configure terminalSession idle state : TRUENo of exec cmds getting executed : 0No of exec cmds blocked : 0Config wait for show completion : FALSERemote ip address : UnknownLock active time (in Sec) : 6Lock Expiration timer (in Sec) : 593Table 62 describes the significant fields shown in the displays.
The following example shows how to configure the configuration file for single user auto configuration mode (using the configuration mode exclusive auto command). Use the configure terminal command to enter global configuration mode and lock the configuration mode exclusively. Once the Cisco IOS configuration mode is locked exclusively, you can verify the lock using the show configuration lock command.
Router# configure terminalRouter(config)# configuration mode exclusive autoRouter(config)# endRouter# configure terminalRouter(config)# show configuration lockParser Configure LockOwner PID : 10User : User1TTY : 3Type : EXCLUSIVEState : LOCKEDClass : ExposedCount : 0Pending Requests : 0User debug info : 0Related Commands
show context
To display information stored in NVRAM when an unexpected system reload (system exception) occurs, use the show context command in user EXEC or priviledged EXEC mode.
show context [summary | all | slot slot-number [crash-index] [all] [debug]]
Syntax Description
Command Modes
User EXEC
Privileged EXEC
Command History
Usage Guidelines
The display from the show context command includes the following information:
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•
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•
Note
Output for this command will vary by platform. Context information is specific to processors and architectures. For example, context information for the Cisco 2600 series router differs from that for other router types because the Cisco 2600 runs with an M860 processor.
Examples
The following is sample output from the show context command following a system failure:
Router> show contextSystem was restarted by error - a Software forced crash, PC 0x60189354GS Software (RSP-PV-M), Experimental Version 11.1(2033) [ganesh 111]Compiled Mon 31-Mar-97 13:21 by ganeshImage text-base: 0x60010900, data-base: 0x6073E000Stack trace from system failure:FP: 0x60AEA798, RA: 0x60189354FP: 0x60AEA798, RA: 0x601853CCFP: 0x60AEA7C0, RA: 0x6015E98CFP: 0x60AEA7F8, RA: 0x6011AB3CFP: 0x60AEA828, RA: 0x601706CCFP: 0x60AEA878, RA: 0x60116340FP: 0x60AEA890, RA: 0x6011632CFault History Buffer:GS Software (RSP-PV-M), Experimental Version 11.1(2033) [ganesh 111]Compiled Mon 31-Mar-97 13:21 by ganeshSignal = 23, Code = 0x24, Uptime 00:04:19$0 : 00000000, AT : 60930120, v0 : 00000032, v1 : 00000120a0 : 60170110, a1 : 6097F22C, a2 : 00000000, a3 : 00000000t0 : 60AE02A0, t1 : 8000FD80, t2 : 34008F00, t3 : FFFF00FFt4 : 00000083, t5 : 3E840024, t6 : 00000000, t7 : 11010132s0 : 00000006, s1 : 607A25F8, s2 : 00000001, s3 : 00000000s4 : 00000000, s5 : 00000000, s6 : 00000000, s7 : 6097F755t8 : 600FABBC, t9 : 00000000, k0 : 30408401, k1 : 30410000gp : 608B9860, sp : 60AEA798, s8 : 00000000, ra : 601853CCEPC : 60189354, SREG : 3400EF03, Cause : 00000024Router>The following is sample output from the show context summary command on a Cisco 12012 router. The show context summary command displays a summary of all the crashes recorded for each slot (line card).
Router# show context summaryCRASH INFO SUMMARYSlot 0 : 0 crashesSlot 1 : 0 crashesSlot 2 : 0 crashesSlot 3 : 0 crashesSlot 4 : 0 crashesSlot 5 : 0 crashesSlot 6 : 0 crashesSlot 7 : 2 crashes1 - crash at 18:06:41 UTC Tue Nov 5 19962 - crash at 12:14:55 UTC Mon Nov 4 1996Slot 8 : 0 crashesSlot 9 : 0 crashesSlot 10: 0 crashesSlot 11: 0 crashesRouter#The following is sample output from the show context command following an unexpected system reload on a Cisco 2600 series router.
router# show contextS/W Version: Cisco IOS SoftwareCisco IOS (tm) c2600 Software (c2600-JS-M), Released Version 11.3(19980115:184921]Copyright (c) 1986-2003 by Cisco Systems, Inc.Compiled Thu 15-Jan-98 13:49 by mmagnoException occurred at: 00:02:26 UTC Mon Mar 1 1993Exception type: Data TLB Miss (0x1200)CPU Register Context:PC = 0x80109964 MSR = 0x00009030 CR = 0x55FFFD35 LR = 0x80109958CTR = 0x800154E4 XER = 0xC000BB6F DAR = 0x00000088 DSISR = 0x00000249DEC = 0x7FFFDFCA TBU = 0x00000000 TBL = 0x15433FCF IMMR = 0x68010020R0 = 0x80000000 R1 = 0x80E80BD0 R2 = 0x80000000 R3 = 0x00000000R4 = 0x80E80BC0 R5 = 0x40800000 R6 = 0x00000001 R7 = 0x68010000R8 = 0x00000000 R9 = 0x00000060 R10 = 0x00001030 R11 = 0xFFFFFFFFR12 = 0x00007CE6 R13 = 0xFFF379E8 R14 = 0x80D50000 R15 = 0x00000000R16 = 0x00000000 R17 = 0x00000000 R18 = 0x00000000 R19 = 0x00000000R20 = 0x00000000 R21 = 0x00000001 R22 = 0x00000010 R23 = 0x00000000R24 = 0x00000000 R25 = 0x80E91348 R26 = 0x01936010 R27 = 0x80E92A80R28 = 0x00000001 R29 = 0x019BA920 R30 = 0x00000000 R31 = 0x00000018Stack trace:Frame 00: SP = 0x80E80BD0 PC = 0x80109958Frame 01: SP = 0x80E80C28 PC = 0x8010A720Frame 02: SP = 0x80E80C40 PC = 0x80271010Frame 03: SP = 0x80E80C50 PC = 0x8025EE64Frame 04: SP = 0x80DEE548 PC = 0x8026702CFrame 05: SP = 0x80DEE558 PC = 0x8026702CTable 63 describes the significant fields shown in the display.
Related Commands
show processes
Displays information about the active processes.
show stacks
Monitors the stack usage of processes and interrupt routines.
show controllers (GRP image)
To display information that is specific to the hardware, use the show controllers command in privileged EXEC mode.
show controllers [atm slot-number | clock | csar [register] | csc-fpga | dp83800 | fab-clk | fia [register] | pos [slot-number] [details] | queues [slot-number] | sca | xbar]
Syntax Description
Command Modes
Privileged EXEC
Command History
11.2 GS
This command was introduced to support the Cisco 12000 series routers.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
This information provided by this command is intended for use only by technical support representatives in analyzing system failures in the field.
Examples
The following is sample output from the show controllers pos command for a Cisco 12012:
Router# show controllers pos 7/0POS7/0SECTIONLOF = 2 LOS = 0 BIP(B1) = 5889Active Alarms: NoneLINEAIS = 2 RDI = 2 FEBE = 146 BIP(B2) = 2106453Active Alarms: NonePATHAIS = 2 RDI = 4 FEBE = 63 BIP(B3) = 3216LOP = 0 PSE = 8 NSE = 3 NEWPTR = 2Active Alarms: NoneAPSCOAPS = 3 PSBF = 2State: PSBF_state = FalseRx(K1/K2): F0/15 Tx(K1/K2): 00/00S1S0 = 00, C2 = 64PATH TRACE BUFFER : STABLERemote hostname : GSR-CRemote interface: POS10/0Remote IP addr : 10.201.101.2Remote Rx(K1/K2): F0/15 Tx(K1/K2): 00/00Router#Related Commands
clear controllers
Resets the T1 or E1 controller.
show controllers (line card image)
Displays information that is specific to the hardware on a line card.
show controllers (line card image)
To display information that is specific to the hardware on a line card, use the attach command in privileged EXEC mode to connect to the line card and then use the show controllers command in privileged EXEC mode or the execute-on command in privileged EXEC mode.
show controllers atm [[port-number] [all | sar | summary]]
show controllers fia [register]
show controllers {frfab | tofab} {bma {microcode | ms-inst | register} | qelem start-queue-element [end-queue-element] | qnum start-queue-number [end-queue-number] | queues | statistics}
show controllers io
show controllers l3
show controllers pos {framers | queues | registers | rxsram port-number queue-start-address [queue-length] | txsram port-number queue-start-address [queue-length]}
Syntax Description
Command Modes
Privileged EXEC
Command History
11.2 GS
This command was added to support the Cisco 12000 series Gigabit Switch Routers.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
This information displayed by this command is of use only to technical support representatives in analyzing unexpected system failures in the field. It is documented here in case you need to provide the displayed statistics to an technical support engineer.
Examples
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:
Router# execute-on slot 4 show controllers atm 0TX SAR (Beta 1.0.0) is Operational;RX SAR (Beta 1.0.0) is Operational;Interface Configuration Mode:STS-12cActive Maker Channels: total # 6VCID ChnnlID Type OutputInfo InPkts InOAMs MacString1 0888 UBR 0C010010 0 0 08882000AAAA0300000008002 0988 VBR 04010020 0 0 098820003 8BC8 UBR 0C010030 0 0 8BC82000AAAA0300000008004 0E08 UBR 0C010040 0 0 0E082000AAAA03000000080010 1288 VBR 040100A0 0 0 1288200011 8BE8 VBR 0C0100B0 0 0 8BE82000AAAA030000000800SAR Total Counters:total_tx_idle_cells 215267 total_tx_paks 0 total_tx_abort_paks 0total_rx_paks 0 total_rx_drop_paks 0 total_rx_discard_cells 15Switching Code Counters:total_rx_crc_err_paks 0 total_rx_giant_paks 0total_rx_abort_paks 0 total_rx_crc10_cells 0total_rx_tmout_paks 0 total_rx_unknown_paks 0total_rx_out_buf_paks 0 total_rx_unknown_vc_paks 0BATMAN Asic Register Values:hi_addr_reg 0x8000, lo_addr_reg 0x000C, boot_msk_addr 0x0780,rmcell_msk_addr 0x0724, rmcnt__msk_addr 0x07C2, txbuf_msk_addr 0x070C,...CM622 SAR Boot Configuration:txind_q_addr 0x14000 txcmd_q_addr 0x20000...SUNI-622 Framer Register Values:Master Rst and Ident/Load Meters Reg (#0x0): 0x10Master Configuration Reg (#0x1): 0x1FMaster Interrupt Status Reg (#0x2): 0x00PISO Interrupt Reg (#0x3): 0x04Master Auto Alarm Reg (#0x4): 0x03Master Auto Alarm Reg (#0x5): 0x07Parallel Output Port Reg (#0x6): 0x02...BERM Line BIP Threshold LSB Reg (#0x74): 0x00BERM Line BIP Threshold MSB Reg (#0x75): 0x00Router#The following is partial sample output from the show controllers command:
Router# execute-on slot 6 show controllersInterface POS0Hardware is BFLC POSlcpos_instance struct 60311B40RX POS ASIC addr space 12000000TX POS ASIC addr space 12000100SUNI framer addr space 12000400SUNI rsop intr status 00CRC32 enabled, HDLC enc, int clockno loopInterface POS1Hardware is BFLC POSlcpos_instance struct 603142E0RX POS ASIC addr space 12000000TX POS ASIC addr space 12000100SUNI framer addr space 12000600SUNI rsop intr status 00CRC32 enabled, HDLC enc, int clockno loop...Router#The following is partial sample output from the show controllers pos framers command:
Router# execute-on slot 6 show controllers pos framersFramer 0, addr=0x12000400:master reset C0master config 1F rrate sts3c trate sts3c fixptrmaster control 00clock rcv cntrl D0RACP control 84RACP gfc control 0FTACP control status 04 hcsaddRACP intr enable 04RSOP cntrl intr enable 00RSOP intr status 00TPOP path sig lbl (c2) 13SPTB control 04 tnullSPTB status 00Framer 1, addr=0x12000600:master reset C0master config 1F rrate sts3c trate sts3c fixptrmaster control 00clock rcv cntrl D0RACP control 84RACP gfc control 0FTACP control status 04 hcsaddRACP intr enable 04RSOP cntrl intr enable 00RSOP intr status 00TPOP path sig lbl (c2) 13SPTB control 04 tnullSPTB status 00Framer 2, addr=0x12000800:master reset C0master config 1F rrate sts3c trate sts3c fixptrmaster control 00clock rcv cntrl D0RACP control 84RACP gfc control 0FTACP control status 04 hcsaddRACP intr enable 04RSOP cntrl intr enable 00RSOP intr status 00TPOP path sig lbl (c2) 13SPTB control 04 tnullSPTB status 00...Router#The following is partial sample output from the show controllers fia command:
Router# execute-on slot 7 show controllers fia========= Line Card (Slot 7) =======Fabric configuration: Full bandwidth redundantMaster Scheduler: Slot 17From Fabric FIA Errors-----------------------redund fifo parity 0 redund overflow 0 cell drops 0crc32 lkup parity 0 cell parity 0 crc32 00 1 2 3 4-------- -------- -------- -------- --------los 0 0 0 0 0crc16 0 0 0 0 0To Fabric FIA Errors-----------------------sca not pres 0 req error 0 uni fifo overflow 0grant parity 0 multi req 0 uni fifo undrflow 0cntrl parity 0 uni req 0 crc32 lkup parity 0multi fifo 0 empty dst req 0 handshake error 0Related Commands
show controllers logging
To display logging information about a Versatile Interface Processor (VIP) card, use the show controllers logging command in privileged EXEC mode.
show controllers vip slot-number logging
Syntax Description
Command Modes
Privileged EXEC
Command History
11.2
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
This command displays the state of syslog error and event logging, including host addresses, and whether console logging is enabled.
When enabled, "trap logging" allows messages to be sent to a remote host (a syslog server).
Examples
The following is sample output from the show controllers logging command:
Router# show controllers vip 1 loggingshow logging from Slot 1:Syslog logging:enabled (0 messages dropped, 1 messages rate-limited, 0 flushes, 0 overruns)Console logging: disabledMonitor logging: level debugging, 0 messages loggedBuffer logging: level debugging, 24 messages loggedTrap logging: level informational, 266 messages logged.Logging to 209.165.202.129Exception Logging size: 4096 bytesCount and timestamp logging messages:disabledLog Buffer (8192 bytes):smallest_local_pool_entries = 256, global particles = 5149highest_local_visible_bandwidth = 15500000:00:05:%SYS-5-RESTART:System restarted --...Table 64 describes the significant fields shown in the display.
Related Commands
show controllers tech-support
To display general information about a Versatile Interface Processor (VIP) card when reporting a problem, use the show controllers tech-support command in privileged EXEC mode.
show controllers vip slot-number tech-support
Syntax Description
Command Modes
Privileged EXEC
Command History
11.2
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
Use this command to help collect general information about a VIP card when you are reporting a problem. This command displays the equivalent of the following show commands for the VIP card:
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For a sample display of the show controllers tech-support command output, refer to these show commands.
Related Commands
show debugging
To display information about the types of debugging that are enabled for your router, use the show debugging command in privileged EXEC mode.
show debugging
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC (#)
Command History
Examples
The following is sample output from the show debugging command. In this example, the remote host is not configured or connected.
Router# show debugging!TCP:TCP Packet debugging is onTCP ECN debugging is on!Router# telnet 10.1.25.234!Trying 10.1.25.234 ...!00:02:48: 10.1.25.31:11001 <---> 10.1.25.234:23 out ECN-setup SYN00:02:48: tcp0: O CLOSED 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 ECE CWR SYN WIN 412800:02:50: 10.1.25.31:11001 <---> 10.1.25.234:23 congestion window changes00:02:50: cwnd from 1460 to 1460, ssthresh from 65535 to 292000:02:50: tcp0: R SYNSENT 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 ECE CWR SYN WIN 412800:02:54: 10.1.25.31:11001 <---> 10.1.25.234:23 congestion window changes00:02:54: cwnd from 1460 to 1460, ssthresh from 2920 to 292000:02:54: tcp0: R SYNSENT 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 ECE CWR SYN WIN 412800:03:02: 10.1.25.31:11001 <---> 10.1.25.234:23 congestion window changes00:03:02: cwnd from 1460 to 1460, ssthresh from 2920 to 292000:03:02: tcp0: R SYNSENT 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 ECE CWR SYN WIN 412800:03:18: 10.1.25.31:11001 <---> 10.1.25.234:23 SYN with ECN disabled00:03:18: 10.1.25.31:11001 <---> 10.1.25.234:23 congestion window changes00:03:18: cwnd from 1460 to 1460, ssthresh from 2920 to 292000:03:18: tcp0: O SYNSENT 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 SYN WIN 412800:03:20: 10.1.25.31:11001 <---> 10.1.25.234:23 congestion window changes00:03:20: cwnd from 1460 to 1460, ssthresh from 2920 to 292000:03:20: tcp0: R SYNSENT 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 SYN WIN 412800:03:24: 10.1.25.31:11001 <---> 10.1.25.234:23 congestion window changes00:03:24: cwnd from 1460 to 1460, ssthresh from 2920 to 292000:03:24: tcp0: R SYNSENT 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 SYN WIN 412800:03:32: 10.1.25.31:11001 <---> 10.1.25.234:23 congestion window changes00:03:32: cwnd from 1460 to 1460, ssthresh from 2920 to 292000:03:32: tcp0: R SYNSENT 10.1.25.234:11001 10.1.25.31:23 seq 1922220018OPTS 4 SYN WIN 4128!Connection timed out; remote host not respondingThe following is sample output from the show debugging command when user-group debugging is configured:
Router# show debugging!usergroup:Usergroup Deletions debugging is onUsergroup Additions debugging is onUsergroup Database debugging is onUsergroup API debugging is on!
Table 65 describes the significant fields in the output.
show declassify
To display the state of the declassify function (enabled, in progress, and so forth) and the sequence of declassification steps that will be performed, use the show declassify command in global configuration mode.
show declassify
Syntax Description
This command has no arguments or keywords.
Note
Command Modes
Global configuration
Command History
12.3(8)YD
This command was introduced.
12.4(2)T
This command was integrated into Cisco IOS Release 12.4(2)T.
Examples
The following example is sample output for the show declassify command:
Router# show declassifyDeclassify facility: Enabled=Yes In Progress=NoErase flash=Yes Erase nvram=YesObtain memory sizeShutdown InterfacesDeclassify Console and Aux PortsErase flashDeclassify NVRAMDeclassify Communications Processor ModuleDeclassify RAM, D-Cache, and I-CacheTable 66 describes the significant fields shown in the display.
Related Commands
show derived-config
To display the composite results of all the configuration commands that apply to an interface, including commands that come from sources such as static templates, dynamic templates, dialer interfaces, and authentication, authorization, and accounting (AAA) per-user attributes, use the show derived-config command in privileged EXEC mode.
show derived-config [interface type number]
Syntax Description
Command Modes
Privileged EXEC
Command History
12.1
This command was introduced.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
Configuration commands can be applied to an interface from sources such as static templates, dynamic templates bound by resource pooling, dialer interfaces, AAA per-user attributes and the configuration of the physical interface. The show derived-config command displays all the commands that apply to an interface.
The output for the show derived-config command is nearly identical to that of the show running-config command. It differs when the configuration for an interface is derived from a template, a dialer interface, or some per-user configuration. In those cases, the commands derived from the template, dialer interface, and so on, will be displayed for the affected interface.
If the same command is configured differently in two different sources that apply to the same interface, the command coming from the source that has the highest precedence will appear in the display.
Examples
The following examples show sample output for the show running-config and show derived-config commands for serial interface 0:23 and dialer interface 0. The output of the show running-config and show derived-config commands is the same for dialer interface 0 because none of the commands that apply to that interface are derived from any sources other than the configuration of the dialer interface. The output for the show running-config and show derived-config commands for serial interface 0:23 differs because some of the commands that apply to serial interface 0:23 come from dialer interface 0.
Router# show running-config interface Serial0:23Building configuration...Current configuration :296 bytes!interface Serial0:23description PRI to ADTRAN (#4444150)ip unnumbered Loopback0encapsulation pppdialer rotary-group 0isdn switch-type primary-dms100isdn incoming-voice modemisdn calling-number 4444150peer default ip address pool old_poolendRouter# show running-config interface Dialer0Building configuration...Current configuration :257 bytes!interface Dialer0description Dialin Usersip unnumbered Loopback0no ip proxy-arpencapsulation pppdialer in-banddialer idle-timeout 30dialer-group 1peer default ip address pool new_poolppp authentication pap chap callinendRouter# show derived-config interface Serial0:23Building configuration...Derived configuration :332 bytes!interface Serial0:23description PRI to ADTRAN (#4444150)ip unnumbered Loopback0encapsulation pppdialer rotary-group 0isdn switch-type primary-dms100isdn incoming-voice modemisdn calling-number 4444150peer default ip address pool new_poolppp authentication pap chap callinendRouter# show derived-config interface Dialer0Building configuration...Derived configuration :257 bytes!interface Dialer0description Dialin Usersip unnumbered Loopback0no ip proxy-arpencapsulation pppdialer in-banddialer idle-timeout 30dialer-group 1peer default ip address pool new_poolppp authentication pap chap callinendRelated Commands
show running-config
Displays the contents of the currently running configuration file or the configuration for a specific interface.
show diagnostic cns
To display the information about the CNS subject, use the show diagnostic cns command in user EXEC or privileged EXEC mode.
show diagnostic cns {publish | subscribe}
Syntax Description
publish
Displays the subject with which the diagnostic results is published.
subscribe
Displays the subscribed subjects.
Defaults
This command has no default settings.
Command Modes
User EXEC
Privileged EXECCommand History
12.2(14)SX
Support for this command was introduced on the Supervisor Engine 720.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
This command is not supported on Cisco 7600 series routers that are configured with a Supervisor Engine 2.
The CNS subsystem communicates with remote network applications through the CNS-event agent and follows the publish and subscribe model. An application sets itself up to receive events by subscribing to the approprate event subject name.
Examples
This example shows how to display the subject with which the diagnostic results is published:
Router# show diagnostic cns publishSubject: cisco.cns.device.diag_resultsThis example shows how to display the subscribed subject:
Router# show diagnostic cns subscribeSubject: cisco.cns.device.diag_get_resultsRelated Commands
show diagnostic sanity
To display sanity check results, use the show diagnostic sanity command in privileged EXEC mode.
show diagnostic sanity
Syntax Description
This command has no arguments or keywords.
Defaults
Displays information for all the Gigabit Ethernet WAN interfaces in the Cisco 7600 series router.
Command Modes
Privileged EXEC
Command History
12.2(18)SXE
Support for this command was introduced on the Supervisor Engine 720.
12.2(33)SRA
This command was integrated into Cisco IOS Release 12.2(33)SRA.
Usage Guidelines
The sanity check runs a set of predetermined checks on the configuration with a possible combination of certain system states to compile a list of warning conditions. The checks are designed to look for anything that seems out of place and are intended to serve as an aid to maintaining the system sanity.
The following is a list of the checks that are run and the action taken when the condition is found:
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Trunking Checks
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Channeling Checks
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Spanning-Tree VLAN Checks
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Spanning-Tree Port Checks
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UDLD Checks
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Assorted Port Checks
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