I'm running into an issue where my LAG is going down but nothing is jumping out at me. I've got an x450 acting as a aggregate layer on the floors with Dell 6248 models as the edge devices for the clients. Been working fine for the last 4 years, nothing has been upgraded recently, but recently am running into this issue. I'm hoping to confirm some things on the XOS side.
model: x450 / rev. 22.214.171.124
enable sharing 1 grouping 1-2, 17-18 algorithm address-based L2 lacp
09/28/2015 07:59:46.68 [i] Remove port 17 from aggregator
09/28/2015 07:56:49.80 [i] Remove port 2 from aggregator
09/28/2015 07:55:16.80 [i] Remove port 1 from aggregator
09/28/2015 07:38:18.91 [i] Remove port 18 from aggregator
So all I see in the log is that the ports are being removed from the LAG. The ports themselves seem to remain up as if I disable the LAG on the Dell side, I then see the ports going down on the x450. If it were spanning-tree disabling them, I should see some sort of message about that, right?
-Is there a command that I can use to get the ports to be re-added back to the LAG or possibly disable/enable the LAG?
-Are there any additional logging that I might be able to enable that may give me more details?