We have a Netscout TAP on the circuit which feeds data into Corvil monitoring device.
The Corvils has been configured for 4 ms sampling (same as the Tc configured on Cisco router). The max traffic volumes reported by the Corvil are higher than 190Mbps and on avarage max traffic volumes for 4 ms sampling are around 194Mbps. And this could be explained by what you said that the router doesn't count Ethernet 4bytes FCS while it calculates Bc (commited burst size) for shaping purposes.
However few times a day I can see a spike of a 220-230Mbps, which is imposible to have on 200Mbps.
Is there any explanation of that or this is more likely to be Corvil monitoring device inaccuracy/mistake.
I have noticed as well that the traffic which seems to cause this spike is UDP video traffic.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...