IOS upgradation on cisco 10K router

                   

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

                    ISSU State = Init

                 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

                    ISSU State = Init

                 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)