Posted on October 23, 2014 5:25 am
 |  Asked by Ross Vandegrift
 |  2648 views
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Hello,

I am using VirtualBox with the Am79C973 driver to run vEOS, and I’ve run into some issues when combining LLDP and LACP.  Individually, either works great.  But if I create a LAG with LACP enabled, LLDP stops working on the members of the LAG.  If I change the LAG to static, non-LACP configuration, LLDP works again.

Is this a vEOS bug or a known limitation?  On a number of physical 7050s, the combination works as expected.

Ross

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Posted by apech
Answered on October 23, 2014 5:28 am

Hey Ross,

There is a known bug in vEOS where LLDP stops working on interfaces that are configured as part of a port-channel. I’m not aware of it being dependent on the port-channel being static or using LACP.

Andre

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Posted by Ross Vandegrift
Answered on October 23, 2014 5:53 pm

Thanks for the info – it looks like you’re right, use of LACP doesn’t play a role.  During my test, I had a small window where the interface was out of the bundle.  But clearing the counters makes clear that no LLDP traffic is being sent.

Ross

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