Stackwise 3850 for VSS dual active detection

[Francesco Pettene]

Hello

by means of 3750 or 2960-S stacks, it was impossibile to perform VSS dual active detction

using ePAgP trough a MEC towards different members of a stack.

Here the QA docs for 3850 state it is now supported:

http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3850-series-switches/qa_c67-722110.html

Though, I'd like to read some confirmation from someone already using it in production or maybe

from some up to date Cisco representative.

I'd like to use lots of 3850 stacks as access switches linked to a 6500 VSS pair. In order to keep

everything redundant i would like to couple VSLP Fast Hellos and ePAgP trough the Stackwise 3850s

but not before making myself sure it's actually supported.

Thanks

francesco

[Reza Sharifi]

Hi,

Yes, you can.  I just recently used a 3850 for dual active detection for a set 4500 switches (VSS).

HTH

[Francesco Pettene]

A standalone 3850 or a stack? My doubt is using DAD crossing multichassis etherchannel

through different switches within the same stack.

thx

[Jesse.t.brown · Accepted solution]

Francesco,

I have deployed stacks of up to five 3850 switches with stackwise and powerstack cables, there are no issues running active/active on redundant links.  I recommend using LACP.

[Francesco Pettene]

I can confirm i performed the same config.

Thank you

fp

[jayesh.acharya1]

Hello Francesco,

Could you suggest me to configure failover in two cisco 3850 switch connected with stack cable