We are running IOS15.3(1) in our ME3600Xs. In some cases we are using the following feature to avoid drops in ME3600X queues due to microbursts:
Egress default queue limit improvement and percent bandwidth support—QoS feature to increase QoS Buffer depths and default queue limits on the Cisco ME 3800X/ME 3600X. The feature allows setting queue limits as a percentage of the total buffer pool. For details about using this feature, see:
It's really useful to avoid annoying drops in the customer facing queues.
However, I would like to follow the utilization level of the whole 22MB buffer pool (18MB for queues) that each ASIC has. I would be grateful if somebody could tell me the command to verify it, as I haven't been able to find it.
But increasing the queue limit might possibly delay the traffic. Yes, ME switches has acutally 2 ASIC called NILE0/NILE1 and they are similar to EARL asic in 6500/7600. When we execute the show platform CLI they will get outputs from NILE asic which is presented in a very different format and it is not very intuitive. If we get to know what exactly to look for and ignore other fields there will be no confusion.
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