12-10-2020 07:44 AM
In Stackwise Virtual Link on 3850 XS. We use 2 interface on both the Switches for configuring Stackwise Virtual Link and 1 interface for Dual Active Detection. Can Any 1 explain why 2 interface are configured in this stacking system?
If we configure only 1 interface as Stackwise Virtual will stack work?
Solved! Go to Solution.
12-10-2020 08:21 AM
>...
Q What are SVL best practices and
recommendations?
A Following are recommended Cisco SVL best practices:
>...
• Minimum of two SVL connections are recommended for
better redundancy and load sharing.
>....
M.
12-10-2020 09:03 AM
YES / NO - single should work, that is not best practice, if that link break you have split brain scenario, so suggest always SVL should 2 Link along with 1 DAD link. that is the best practice, unofficially you can do many ways, that is not supported.
12-10-2020 08:21 AM
>...
Q What are SVL best practices and
recommendations?
A Following are recommended Cisco SVL best practices:
>...
• Minimum of two SVL connections are recommended for
better redundancy and load sharing.
>....
M.
12-10-2020 09:03 AM
YES / NO - single should work, that is not best practice, if that link break you have split brain scenario, so suggest always SVL should 2 Link along with 1 DAD link. that is the best practice, unofficially you can do many ways, that is not supported.
12-10-2020 06:48 PM
In case DAD not configured what will be the effect?
12-10-2020 11:29 PM
DAD itself give self explanatory, Dual Active Detection - this detects if both go active and take action.
As i mentioned in the original, as long as there i no Link break in theory all should work expected.
But in real world we can not take as risk even .1% - so suggest always best practice as suggested.
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