Experiencing an issue with between a couple of remote sites connected via a LES link that is intermittently loosing its adjacency with each other.
On closer look on one of the ends is experiencing packet loss. Switch ports, Gbics and all cables have been replaced but still seeing packet loss.
On further investigation the packet loss isn't happening incrementally, in seems to happen at a certain point in time. It also seems the problem could be happening most often first thing in the morning.
The suggestion therefore seems to be that it is experiencing congestion.
So my question is how best to mitigate this problem and keep control traffic / OSPF adjacency active?
My understanding is that control traffic like OSPF would automatically be put into a high priority queue (qp8) and therefore shouldn't suffer from this problem. I haven't done a packet capture yet to confirm this but I can see traffic hitting QP8 using the qosmonitor.
Guess we could enable some flow control but wondered if anyone has experienced this before and what you did to resolve it.
Many thanks in advance.