ios upgrade procedure for VSS and stack switches

[BALAMURUGAN SINGARAM]

We have two 6500 configured as VSS, please let me know the best practice to upgrade IOS for VSS switches.

3560 switches are stacked, please let me know the best practice to upgrade for stacked switches.

[Venkatesh Perumal]

refer below docs:

https://supportforums.cisco.com/document/124626/virtual-switching-system-vss-configuration-cisco-4500-series-switches

http://www.thegeekstuff.com/2011/06/upgrade-cisco-ios-image/

http://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/64898-upgrade-3750-stack.html#mupgrade

http://www.ciscozine.com/how-to-upgrade-a-cisco-stack/

[InayathUlla Sharieff · Accepted solution]

6500:

1.  Copy the IOS from the TFTP to the active blade supervisor card:  copy tftp:///IOS.bin sup-bootflash:

2.  Copy the IOS from the TFTP to the secondary blade supervisor card:  copy tftp:///IOS.bin slavesup-bootflash:

3.  Go to enable mode and change the bootstring/boot variable.

NOTE:  In this step, what we've done is specify that the chassis boot the NEW IOS and also specify that the chassis boot the old or existing IOS in case the first one fails.

conf t

NO boot system flash sup-bootdisk:OLD_IOS.bin

boot system flash sup-bootdisk:NEW_IOS.bin

boot system flash sup-bootdisk:OLD_IOS.bin

end

copy run start

reboot

2-

3560

http://www.cisco.com/c/en/us/support/docs/switches/catalyst-3750-series-switches/64898-upgrade-3750-stack.html

HTH

Regards

Inayath

[Mark Malone]

Here is the doc for upgrading a vss through fsu

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/vss.html#wp1169328

for IOS-XE just copy image onto USB stick in switch and push it to switche using below , you will need to reload after

software install file flash:cat3k_caa-universalk9.SPA.03.03.01.SE.150-1.EX3.bin switch 1-2