As Tom mentioned, the switches you're using can be configured to allow for LACP pairs across switches. For each head, you want to create two ifgroups with one leg on each switch. From those ifgroups, you should create vlan tagged interfaces, and then define LIFs on those. Each vlan should have its own failover group, and you should associate each LIF with a failover group for the vlan it's part of. 

With this setup, if any cable or switch goes down, all your interfaces remain up. If any 8040 controller fails, all the LIFs on that controller will fail over to the other one.

On Wed, Apr 8, 2015 at 9:51 PM, Sayla, Mustafa <MSAYLA@mesirowfinancial.com> wrote:

We are looking to buy new FAS8040 and configure it with CDOT. I am looking for network recommendation with Cisco 6509 VSS. 8040 has four 10G ports per controller and I want to use all four ports to create an interface group with two VLAN, using VLAN tagging. I want 2 ports to go to one VSS switch and 2 ports to go to other VSS switch so I have switch redundancy also. I am not sure if it is doable since I am going to two different switches. Any recommendation is appreciated.

 

Mustafa

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