IOS Upgradation on 10K PE &Troubleshooting commands
Follow below steps for 10K IOS upgradation:
- Copy latest IOS on bootflash from tftp server
Commands:
router#copy tftp: bootflash:
Address or name of remote host []? <tftp server IP>
Source filename []? <New IOS>
Destination filename <New IOS>
<press enter>
- Now copy this image into standby processor using following command:
router#copy bootflash:<New IOS> stby-bootflash:
- Check IOS presence with following commands:
router # Show bootflash: (for Active )
router# Show stby-bootflash: (for standby)
- The redundancy mode has to be configured as SSO.
Commands:
Router(config)#Redundancy
Router(config-red)#mode sso
- Change the boot order using following commands and reload the router.
router#configuration terminal
router(config)#boot system flash <New IOS >
router(config)#boot system flash <Old IOS >
router(config)#end
- Router will reload with new IOS image and config sync with standby processor.
- Check current IOS version on both processors with following commands:
Router # show issu state detail
output:
Router#sh issu state detail
Slot = B
RP State = Active
Boot Variable = bootflash:c10k3-p11-mz.122-33.SB1b.fc2,12;bootflash:c10k3-p11-mz.122-31.SB10e.bin,12;
Operating Mode = SSO
Primary Version = N/A
Secondary Version = N/A
Current Version = bootflash:c10k3-p11-mz.122-33.SB1b.fc2
Variable Store = PrstVbl
ROMMON CV = [bootflash:c10k3-p11-mz.122-33.SB1b.fc2]
Slot = A
RP State = Standby
Boot Variable = bootflash:c10k3-p11-mz.122-33.SB1b.fc2,12;bootflash:c10k3-p11-mz.122-31.SB10e.bin,12;
Operating Mode = SSO
Primary Version = N/A
Secondary Version = N/A
Current Version = bootflash:c10k3-p11-mz.122-33.SB1b.fc2
- Above command will give details of current IOS version on both processors and operating mode.
Router #sh redundancy
Redundant System Information :
------------------------------
Available system uptime = 2 weeks, 1 day, 6 hours, 42 minutes
Switchovers system experienced = 1
Standby failures = 0
Last switchover reason = user initiated
Hardware Mode = Duplex
Configured Redundancy Mode = SSO
Operating Redundancy Mode = SSO
Maintenance Mode = Disabled
Communications = Up
Current Processor Information :
-------------------------------
Active Location = slot B
Current Software state = ACTIVE
Uptime in current state = 2 weeks, 1 day, 6 hours, 29 minutes
Image Version = Cisco IOS Software, 10000 Software (C10K3-P11-M), Version 12.2(33)SB1b, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Fri 30-Jan-09 11:37 by prod_rel_team
BOOT = bootflash:c10k3-p11-mz.122-33.SB1b.fc2,12;bootflash:c10k3-p11-mz.122-31.SB10e.bin,12;
CONFIG_FILE =
BOOTLDR =
Configuration register = 0x2102
Peer Processor Information :
----------------------------
Standby Location = slot A
Current Software state = STANDBY HOT
Uptime in current state = 2 weeks, 1 day, 6 hours, 24 minutes
Image Version = Cisco IOS Software, 10000 Software (C10K3-P11-M), Version 12.2(33)SB1b, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Fri 30-Jan-09 11:37 by prod_rel_team
BOOT = bootflash:c10k3-p11-mz.122-33.SB1b.fc2,12;bootflash:c10k3-p11-mz.122-31.SB10e.bin,12;
CONFIG_FILE =
BOOTLDR =
Configuration register = 0x2102
- “show redundancy” command can be used to check:
1) Available system uptime of both processors
2) Configured Redundancy Mode
3) Operating Redundancy Mode
4) Standby processor current software state (STANDBY HOT/ STANDBY COLD)
- STANDBY HOT indicates standby processor is ready to be active if primary processor fails.
- If current IOS is different on both processors then standby processor will show as STANBY COLD indicating it is not ready to become ACTIVE.
- If this issue is faced then copy new image into standby processor and reload the router.
- This will change the Current Software state to STANDBY HOT.
- Following commands can be used to switchover the processor:
router(config)#redundancy force-switchover main-cpu
router(config)#testcrash (Hidden Command)
