Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

WS-X6716-10G-3C and WS-X6716-10G-3CXL / 6500 in VSS


The scenario is this: there are two 6509-E series chassis in VSS mode with exactly the same hardware per slot. In slot 9 of each 6509-E chassis, there is either a WS-X6716-10G-3C or WS-X6716-10G-3CXL.

The question is, are all 16 ports active and available for use?

I have heard and thought I read on Cisco's site that when the WS-X6716-10G-3C or WS-X6716-10G-3CXL module is running in a VSS scenario that only the first 8 ports are usuable. I can no longer find any reference to this.

I know that a lot of the issues with service modules, etc were addressed with 12.2(33)SXH.

Can anyone confirm?

New Member

Re: WS-X6716-10G-3C and WS-X6716-10G-3CXL / 6500 in VSS

Also, can someone provide the link supporting the answer either way?


Hall of Fame Super Gold

Re: WS-X6716-10G-3C and WS-X6716-10G-3CXL / 6500 in VSS

WS-X6708-10G-3CXL requires IOS a minimum of v12.2(33)SXI.

Q. What makes up the VSS?

A. The VSS is made up of the following:

• Virtual switch members: Cisco Catalyst 6500 Series Switches (up to two switches with initial release) deployed with the Virtual Switching Supervisor 720 10GE

• Virtual switch link (VSL): 10 Gigabit Ethernet connections (up to eight using EtherChannel) between the virtual switch members. The 10 Gigabit Ethernet connections have to be one or more of the following modules:

- Virtual Switching Supervisor 720 10GE: 10 Gigabit Ethernet uplink ports

- WS-X6708-10G module: any 10 Gigabit Ethernet port

- WS-X6716-10G module: only non-oversubscribed ports can be used for VSL (supported with 12.2(33)SXI)

VSLs can carry regular data traffic in addition to the control plane communication between the two virtual switch members. The distance of VSL link is limited only by the chosen 10 Gigabit Ethernet optics. For example, with a X2-10GB-ER optic, VSL can span distance up to 40 km.


Does this information help?