Some Tips for Troubleshooting:<ul>
=>If we delete the IOS from flash & still shows up in the flash to free up the space use the command
squeeze flash:
=> On CatOS to disable/enable terminal logging :
set logging session disable / set logging session enable respectively.
=> To force a state change in the switch supervisor for Multilayer switches (6500 etc)
for IOS - redundancy switch-activity force
for catOS - Switch supervisor
=> To clear idle session in cat OS
disconnect (session-id)
=> To check voice Modules on Cisco Routers (ISR) use the following commands:
sh diag | i PVDM
for eg: PVDM Slot 0:
64-channel (G.711) Voice/Fax PVDMII DSP SIMM PVDM daughter card
Product (FRU) Number : PVDM2-64
PVDM Slot 1:
64-channel (G.711) Voice/Fax PVDMII DSP SIMM PVDM daughter card
Product (FRU) Number : PVDM2-64
R#test voice driver
Enter VPM or HDV or ATM AIM or NM-HD-xx or HDV2 slot number : 0
C3800 Debugging Section;
1 - FPGA Registers Read/Write
2 - 5510 DSP test
3 - DSPRM test
4 - HDLC32 test
5 - TDM test
6 - Quit
Select option : 2
5510 DSP Testing Section:
1 - Reset ALL DSPs
2 - Reset 1 DSP
3 - Download Bootload DSPware
4 - CHPIR Enable/Disable
5 - Display c5510 ring
6 - Show HPI RAM
7 - Show eHPI memory thru Relay command
8 - Show Controller
9 - c5510 Keepalive Enable/Disable
10 - Download bootloader using indirect slave access
11 - Write HPI RAM
12 - DSP application download
13 - faked dsp crash
14 - Wait in Firmware Restart Indication
15 - Display DSP Keepalive Status
16 - QUIT
Select option : 15
DSP Keepalive Status Display:
=============================
DSP 1 is Alive, State: 4, Keepalive Sent: 339, Skip 343
DSP 2 is Alive, State: 4, Keepalive Sent: 284, Skip 399
DSP 3 is Alive, State: 4, Keepalive Sent: 341, Skip 342
DSP 4 is Alive, State: 4, Keepalive Sent: 341, Skip 342
DSP 5 is Alive, State: 4, Keepalive Sent: 341, Skip 342
DSP 6 is Alive, State: 4, Keepalive Sent: 342, Skip 343
DSP 7 is Alive, State: 4, Keepalive Sent: 343, Skip 343
DSP 8 is Alive, State: 4, Keepalive Sent: 343, Skip 343
Note : If DSP is alive it is working fine :)
=> Cisco Phones use 15.4 MW by default but it only needs 6.3 MW so if we are running low on power
over ethernet we can change the power consumption by using the following command:
sw1(config-if)#power inline consumption ?
<4000-15400> milli-watts
=> To check TCP connections / blocks on switch use
Router#sh tcp bri
To clear the sessions which are holding up memory & causing high CPU
R#clear tcp tcb * ( It might take some time to clear the idle sessions)
=> For 6500 To log into SIP
Mod Ports Card Type
Model
Serial No.
--- ----- -------------------------------------- ------------------ ----------1 0 4-subslot SPA Interface Processor-400 7600-SIP-400
XXXXX
5 2 Supervisor Engine 720 (Active)
WS-SUP720-3B
XXXXX
Mod MAC addresses
Hw Fw
Sw
Status
--- ---------------------------------- ------ ------------ ------------ ------1 XXXXXXXXe.acc0 to XXXXXX 2.5 12.2(33)SXH4 12.2(33)SXH4 Ok
5 XXXXXXXc to XXXXXXX 5.7 8.5(2)
12.2(33)SXH4 Ok
Mod Sub-Module
Model
---- --------------------------- -----------------1/0 2xOC3 POS SPA
SPA-2XOC3-POS
5 Policy Feature Card 3
WS-F6K-PFC3B
5 MSFC3 Daughterboard
WS-SUP720
Serial
Hw Status
----------- ------- ------XXXXXXXX 1.0
Ok
XXXXXXXXX 2.4 Ok
XXXXXXXXX 3.2 Ok
SW#attach 1
Entering CONSOLE for slot 1
Type "^C^C^C" to end this session
SIP-400-1>sh controller
=> IMP: In a switch stack - The master switch would see all the interfaces (up & functional &
description ) but the member switches can only see its own interfaces and would see the rest of them as
admin down.
=> To test Module on a switch
Test hw-module <subslot>
=> To login to a module
remote log module <#>