Greetings!
My client wants to upgrade IOS.
Since I havent done any "major version upgrades", I would like to get some advice on this.
Cisco 7606-s with 2 SUP modules(RSP720-3C-GE)
Current OS Ver. is 12.2(33)SRE1
Cisco's suggested IOS version is "15.5.3S9a"
Can I jump straight to suggested version?
or
Do I have to do some steps of upgrade?
Thanks.
Kwang Young Ko
