WS-SUP720-3B vs VS-S2T-10G = Which one to use?

[jacob6000]

I need to refresh three 6509 chassis (non-E) along with the Sups. I am looking at these two sups:

WS-SUP720-3B vs VS-S2T-10G

Can anyone provide some feedback to assist in my decision making process? Pros? Cons? We are not using VSS and don't have any plans to do so.

Thank you,

[Benjamin Kools]

The VS-S2T-10G is only compatible with the E series chassis so you cannot use it without a chassis upgrade:

http://www.cisco.com/en/US/prod/collateral/modules/ps2797/ps11878/data_sheet_c78-648214.html

The WS-SUP720-3B would work, or you could use the VS-S720-10G-3C if you need 10gb ports on the supervisor card. Note these both require the High Speed Fan and a 2500 watt power supply

[Leo Laohoo]

Benjamin's right.  You can only use Sup720 in a non-E chassis.

But don't even consider the Sup720-3B because Cisco just announced the End-of-Sale for this particular supervisor card.

End-of-Sale and End-of-Life Announcement for the Cisco Catalyst 6500 Series Supervisor Engine 720-3B/3BXL Upgrades and Associated Bundles  (13 August 2012)