Upgrading VSS IOS procedure

[jpsun2010]

I am upgrading a Cisco 6506E VSS from 12.2(33)SXI5 to 12.2(33)SXJ5 during a maintenance window. So I have plenty of time to reboot the VSS. Can anyone confirm if below is the correct procedure. I have manually copied the new IOS to both active and standby Sup720s.

no boot system

boot system flash sup-bootdisk:NEW_IOS.bin

boot system flash sup-bootdisk:OLD_IOS.bin

!

copy run start

reload

I was going through the below cisco document and there are a few more steps as below: Is it necessary?

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/vss.html#wp1169328

Router(config)# no boot system 

Router(config)# config-register 0x2102 

Router(config)# boot system flash disk0:image_name 

Router(config)# end 

Router# copy running-config startup-config 

Router# redundancy reload peer 

Router# redundancy force-switchover 

[Reza Sharifi]

You procedure is correct.  You don't need the extra steps since you are rebooting both switches at the same time.

The reboot for both chassis takes about 8 Minutes (depending on the number of cards you have in both chassis).

Good Luck

HTH

[InayathUlla Sharieff]

Hi PJPJ,

As Reza said it is perfect procedure. Go ahead with the procedure.

VSS(config)# no boot system

VSS(config)# boot system flash :

VSS# copy run start

VSS# redundancy reload peer

++ This command will reload the standby supervisor and it will come up as standby cold

with the new image.

VSS# show redundancy

VSS# redundancy force-switchover

This will reload the active chassis and standby will take over.

Confirm the correct IOS is loaded

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/v

ss.html#wp1170391

HTH

Regards

Inayath.