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
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:
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
csim: called number = 089151, loop count = 1 ping count = 0
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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
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
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
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)
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]:
%Connect failed: Destination unreachable; gateway or host down
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]:
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>?
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 Des cription 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#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
System restarted by power-on
Running default software
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)
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 Des cription 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
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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:
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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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do this very fast with "q" (quit)
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bgp common-administration
bgp dynamic-med-interval
bgp process-dpa
Many thanks goes to Sanjeewa Alahakoon for this list of undocumented IOS commands.