ESXi host LAG to VOSS vIST cluster

[Robert_Zdzieblo]

Hello,

I am trying to setup a 2 NICs LAG from ESXi host to vIST cluster based on two 5520 units running Fabric Engine.

At first I was trying to setup LACP enabled SMLT connection to ESXi with flex-uni config, but I still got "Churn" error in logs and MLT was in NORM, not SMLT mode.

Then I've found an article saying that EXSi supports LACP only with vDS virtual switches, which is not true in my case.

I have other SMLT links with LACP enabled on that cluster, which are working fine.

Is it any way to setup LAG to ESXi host from SMLTed VOSS cluster? Should the SMLT be set without LACP enabled? Is there anyone with working config like this?

REGARDS

Robert 

[EXTR_Paul · Accepted solution]

Why are you using FLI-UNI's.  This is a DVR deployment?

If you aren't using DvR just use normal UNI's.  

ANyways.  This is 100% supported in VOSS.  Here are two examples.  

Here is KB article.    https://extreme-networks.my.site.com/ExtrArticleDetail?an=000083501&q=VOSS%20SMLT%20LACP%20confog

There is a working example in this TCG.

https://documentation.extremenetworks.com/TCG-TSG/VSP_CCTV_Deployment.pdf

[Robert_Zdzieblo]

Hi EXTR_Paul,

Thanks for the links!

I was advised to use flex-uni uplinks, cause in this way we don't have CVLANs on Fabric nodes (both 5520 cores),

That is what I would like to maintain, if possible.

I tried to configure static LAG with no LACP to ESXi host (still using flex-uni uplinks). I have proper SMLT  status and I can see ESXi host MACs on my LAG ports, but there is no communication with VMs on that hosts (no ping to VM's IP).

I know that I should use only static LAG config.

Any suggestions how to configure it from the ESXi vSwitch side?

REGARDS

Robert

[EXTR_Paul]

you will need to google for how to configure LAG/LACP on an ESXi host   there is a ton of information about there on the VMware site