04-07-2020 08:08 AM
Does Cisco implement certain limits to the burst size in relation to the CIR. I'm looking at a config for a customer and they basically have a burst-size value that's based on a burst period longer than an hour.
For example, having a policer with a 10K CIR on a 100Mbps interface and the Bc is 5MBytes. Will the router actually allow sending 5MBytes of data at once across that interface? I could saturate the 100Mbps interface for 400 ms with that much data. Or are there limits built in to prevent this regardless of what's configured?
04-07-2020 11:12 AM
04-08-2020 09:30 AM
Thanks! I'm overseeing the network for a customer and I point out issues with a bunch of their QOS configuration. Their engineers are saying it works fine. I've worked with other vendor technology where they limit the burst period to 600ms regardless of configuration. I just wanted to see if Cisco does something similar before pushing back that they could potentially be screwing themselves over.
04-08-2020 12:02 PM
04-08-2020 03:25 PM
They needed to do it on ingress so a policer was our only option.
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