I've been testing ME3400 switches at the bench, with results that concern me. I'm running very simple QoS, and when I put 45Mbps of UDP traffic through to a 100Mbps port, I get packet drops. The traffic is not very bursty, but I see drops whether the queue-limit is set low or high.
Has anyone else seen this sort of behavior? Is there a setting I've missed? IOS versions to avoid? Packet sizes which cause trouble (I test with 1400 byte packets to keep packet rates low)?
Any advice appreciated. I have a TAC case on this, but they have not been able to say much.