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cisco 未公开的命令
Here you can find a collection of undocumented (not on Cisco Dokumentation CD or in online help) IOS commands:
csim
show interface switching
show ip ospf statistics
debug ip ospf monitor
ttcp
if-con
no snmp-server sparse-tables
who
show region
ps -c
quit
test aaa group radius
list of more and more undocumented commands
If you know more undocumented IOS commands for this collection, please send me a e-mail.
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With the command csim you can emulate a voice call. It′s like sombody calls the specified number. Usefull, if you don′t have physically access to telephone:
Sucessfull call:
wg1r1#csim start 089150
csim: called number = 089150, loop count = 1 ping count = 0
csim err csimDisconnected recvd DISC cid(21)
csim: loop = 1, failed = 1
csim: call attempted = 1, setup failed = 1, tone failed = 0
Call to a not defined number:
wg1r1#csim start 089151
csim: called number = 089151, loop count = 1 ping count = 0
csim err:csim_do_test Error peer not found
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With show interface switching you can see in detail, which protocols are process, fast or elsewhere switched. It′s helpfull for traffic engineering:
wg1r1#sh interfaces switching
Ethernet0/0
Throttle count 0
Drops RP 0 SP 0
SPD Flushes Fast 0 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 5700 Drops 0
Protocol Path Pkts In Chars In Pkts Out Chars Out
Other Process 8821 983982 7806 468360
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
IP Process 32228 3339712 5786 611402
Cache misses 0
Fast 92667 8980418 133414 189720295
Auton/SSE 0 0 0 0
DEC MOP Process 0 0 130 10010
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
ARP Process 6440 386380 195 11700
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
CDP Process 0 0 1302 404922
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
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With show ip ospf statistics you get detail informations about OSPF SPF. You can see the reasons for SPF and the calculation times:
London#show ip ospf statistic
Area 0: SPF algorithm executed 15 times
SPF calculation time
Delta T Intra D-Intra Summ D-Summ Ext D-Ext Total Reason
00:45:02 32 0 0 0 0 0 36 R,
00:41:00 28 0 0 0 0 0 28 R, N,
00:40:50 28 0 0 0 0 0 28 R,
00:38:13 28 0 0 0 4 0 32 R, X
00:34:18 24 0 0 0 4 0 32 R, N,SN,SA,X
00:07:37 24 0 0 0 0 0 36 R,
00:05:18 308 0 4 0 28 0 356 R,
00:04:05 24 0 0 0 4 0 28 R,
00:01:31 24 0 4 0 0 0 36 R,
00:01:21 24 0 0 4 0 0 36 R,
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With debug ip ospf monitor you can monitor the OSPF SPF.
London#deb ip ospf monitor
OSPF spf monitoring debugging is on
2d04h: OSPF: 192.168.181.2 address 192.168.181.193 on TokenRing0 is dead, state DOWN
2d04h: OSPF: Schedule SPF in area 0
Change in LS ID 0.0.0.0, LSA type R,
2d04h: OSPF: schedule SPF: spf_time 0ms wait_interval 187489656s
2d04h: %SYS-5-CONFIG_I: Configured from console by console
2d04h: OSPF: Start redist-scanning
2d04h: OSPF: Scan for redistribution
2d04h: OSPF: End scanning, Elapsed time 0ms
2d04h: %LINK-5-CHANGED: Interface TokenRing0, changed state to administratively down
2d04h: OSPF: Begin SPF at 0xB2CF100ms, process time 360ms
2d04h: spf_time 0ms, wait_interval 187489656s
2d04h: OSPF: End SPF at 0xB2CF120ms, Total elapsed time 32ms
2d04h: Intra: 24ms, Inter: 0ms, External: 0ms
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Start a TCP data server/receiver for TCP performance testing between two Cisco 7500 router:
sh ver
Cisco Internetwork Operating System Software
IOS (tm) RSP Software (RSP-JSV-M), Version 12.0(7), RELEASE SOFTWARE (fc1)
Router#ttcp
transmit or receive [receive]: transmit
Target IP address: 1.1.1.1
perform tcp half close [n]:
send buflen [8192]:
send nbuf [2048]:
bufalign [16384]:
bufoffset [0]:
port [5001]:
sinkmode [y]:
buffering on writes [y]:
show tcp information at end [n]:
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 1.1.1.1
%Connect failed: Destination unreachable; gateway or host down
Router#ttcp
transmit or receive [receive]:
perform tcp half close [n]:
receive buflen [8192]:
bufalign [16384]:
bufoffset [0]:
port [5001]:
sinkmode [y]:
rcvwndsize [4128]:
delayed ACK [y]:
show tcp information at end [n]:
ttcp-r: buflen=8192, align=16384/0, port=5001
rcvwndsize=4128, delayedack=yes tcp
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On Cisco 7500 you can connect you to the VIP boards for VIP commands (memory, cpu, etc.)
Router#if-con 2 con
Entering CONSOLE for VIP2 2
Type "^C^C^C" or "if-quit" to end this session
VIP-Slot2>
VIP-Slot2>?
Exec commands:
clear Reset functions
disable Turn off privileged commands
disconnect Disconnect an existing network connection
enable Turn on privileged commands
exit Exit from the EXEC
help Description of the interactive help system
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
name-connection Name an existing network connection
ping Send echo messages
resume Resume an active network connection
set Set system parameter (not config)
show Show running system information
systat Display information about terminal lines
terminal Set terminal line parameters
traceroute Trace route to destination
where List active connections
VIP-Slot2>en
VIP-Slot2#sh ver
Cisco Internetwork Operating System Software
IOS (tm) VIP Software (SVIP-DW-M), Version 12.0(7), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Wed 13-Oct-99 22:05 by phanguye
Image text-base: 0x60010920, data-base: 0x60224000
ROM: System Bootstrap, Version 11.1(11368) [pgreenfi 17], INTERIM SOFTWARE
VIP-Slot2 uptime is 10 minutes
System restarted by power-on
Running default software
cisco VIP2 (R4700) processor (revision 0x02) with 8192K bytes of memory.
Processor board ID 00000000
R4700 processor, Implementation 33, Revision 1.0 (512KB Level 2 Cache)
4 Ethernet/IEEE 802.3 interface(s)
1 FastEthernet/IEEE 802.3 interface(s)
Configuration register is 0x0
VIP-Slot2#?
Exec commands:
cd Change current directory
clear Reset functions
clock Manage the system clock
configure Enter configuration mode
copy Copy from one file to another
debug Debugging functions (see also 'undebug')
delete Delete a file
dir List files on a filesystem
disable Turn off privileged commands
disconnect Disconnect an existing network connection
enable Turn on privileged commands
exit Exit from the EXEC
help Description of the interactive help system
lock Lock the terminal
login Log in as a particular user
logout Exit from the EXEC
more Display the contents of a file
name-connection Name an existing network connection
no Disable debugging functions
ping Send echo messages
pwd Display current working directory
reload Halt and perform a cold restart
resume Resume an active network connection
send Send a message to other tty lines
set Set system parameter (not config)
setup Run the SETUP command facility
show Show running system information
systat Display information about terminal lines
terminal Set terminal line parameters
test Test subsystems, memory, and interfaces
traceroute Trace route to destination
undebug Disable debugging functions (see also 'debug')
where List active connections
write Write running configuration to memory, network, or terminal
VIP-Slot2#
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Router(config)#no snmp-server sparse-tables
Get the complete SNMP MIB table. On controller interface you get without this command e.g. no out bytes counter. With this commands you get every object with SNMP get-next.
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who is a alias for show user.
Router#who
Line User Host(s) Idle Location
* 0 con 0 idle 00:00:00
1 aux 0 idle 00:01:19
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Get more detail IOS informations:
Router#sh region
Region Manager:
Start End Size(b) Class Media Name
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0x02700000 0x02FFFFFF 9437184 Iomem R/W iomem
0x60000000 0x60FFFFFF 16777216 Flash R/O flash
0x80000000 0x826FFFFF 40894464 Local R/W main
0x80008088 0x8071A2A3 7414300 IText R/O main:text
0x8071A2A4 0x8097FD93 2513648 IData R/W main:data
0x8097FD94 0x80A4E0CF 844604 IBss R/W main:bss
0x80A4E0D0 0x826FFFFF 30089008 Local R/W main:heap
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router> ps -c
Will list the process on the router in a "better" way then show process.
Many thanks for this command goes to Thomas Surber.
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leaving a telnet session: normally with "exit" or "ex".
do this very fast with "q" (quit)
Many thanks for this command goes to Peter Schmid.
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test aaa group radius toto titi
To test radius on one router.
Many thanks for this command goes to Serge Baikof.
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bgp common-administration
bgp dynamic-med-interval
bgp process-dpa
clear ip eigrp [as] event Clear IP-EIGRP event logs
clear ip eigrp [as] logging Stop IP-EIGRP event logging
config overwrite
debug dialer detailed
debug ip packet ... dump Outputs a hex & ASCII dump of the packet's contents
debug isdn code
debug sanity
if-con attach to a vip console
if-cons
ip forwarding
ip forwarding accounting
ip forwarding accounting adjacency-update
ip forwarding accounting non-recursive
ip forwarding accounting per-prefix
ip forwarding accounting prefix-length
ip forwarding switch
ip forwarding traffic-statistics
ip forwarding traffic-statistics load-interval
ip forwarding traffic-statistics update-rate
ip igmp
ip igmp immediate-leave
ip igmp immediate-leave group-list
ip local-pool
ip ospf-name-lookup
ip slow-converge
ip spd
ip spd mode
ip spd mode aggressive
ip spd queue
ip spd queue max-threshold
ip spd queue min-threshold
memory scan Parity check for 7500 RSPs
modem-mgmt csm debug-rbs
no service password-recovery
service internal
set destination-preference
show alignment
show asp
show caller
show caller ip
show chunk
show chunk summary
show controller vip log
show controller vip tech
show fib
show fib drop
show fib interface
show fib interface detail
show fib interface loopback
show fib interface null
show fib interface statistics
show fib interface vlan
show fib linecard
show fib linecard detail
show fib not-cef-switched
show fib not-fib-switched
show hardware
show idb
show interface statis
show interface switching
show interfaces stat
show interface stat
show interfaces switching
show int switching
show ip eigrp event [as] [start# end#] IP-EIGRP Events
show ip eigrp sia-event [as] [start# end#] IP-EIGRP SIA event
show ip eigrp timers [as] IP-EIGRP Timers
show ip ospf bad-checksum
show ip ospf delete
show ip ospf delete-list
show ip ospf ev
show ip ospf events
show ip ospf maxage
show ip ospf maxage
show ip ospf statistics
show isdn active
show isdn history
show list
show list nonempty
show llc
show media
show media access-lists
show modem mapping
show parity
show parser
show parser links
show parser modes
show parser unresolved
show profile
show profile detail
show profile terse
show refuse-message
show region
show region address
show rsh
show rsh-disable-commands
show rsp
show slip
show slot
show snmp mib
show sum
show timers
snmp-server priority low
test crash makes the router crash
test ipc misc
test mbus power
ttcp
router bgp ...
bgp redistribute-internal
Usage:
Redistributing BGP into another protocol only redistributes E-BGP routes. Using this command in the BGP configuration will also redistribute I-BGP routes in the other routing-protocol.
Many thanks goes to Sanjeewa Alahakoon for this list of undocumented IOS commands.
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