I have a pair of standalone Cisco 4506-E chassis each populated with WS-X45-SUP6-E and WS-X4548-GB-RJ45 line cards and other line cards.
Now I'm goin to replace the WS-X45-SUP6-E with WS-X45-SUP8-E in both chassis and convert them into VSS with Cisco IOS-XE 3.8.5E.
Now I'm concerned about this older generation linecard WS-X4548-GB-RJ45 being supported in VSS.
I can see that this linecard is support by the chassis (WS-C4506-E) and the new Supervisor (WS-X45-SUP8-E) but i couldn't see this linecard listed under VSS Hardware Requirements under Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide Cisco IOS XE Release 3.8.xE
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/XE3-8-0E/15-24E/configuration/guide/xe-380-configuration/vss.html#41480
and actually it is mentioned in the same document that I should remove older generation linecards when converting from standalone to VSS mode.
But in another Cisco Support community thread Cisco employee (Furose M) suggest this fact "There is no special requirement for a linecard to be part of VSS. as long as the linecard can work with the chassis, it should work with VSS. The requirement comes in when we need to have VSL on the Linecard. not all the linecards are VSL capable."
https://supportforums.cisco.com/t5/tkb/articleprintpage/tkb-id/4461-docs-network-infrastructure/article-id/4707
So If the above statement is true then this linecard is supported as i'm not using it for VSL link.
Appreciate your help and experience eon the same.
