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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: [NANOG] Comcast latency
> Tim Thompson wrote: >> Here, in New England, I normally see 20% packet loss between Comcast >> and Level3 in NewYork using MTR. It has been as high as 60% in the >> past so this is an improvement. >> James Michael Keller wrote: > Remember that a number of ISP's 'core' routers are going to have ICMP > rate limits in place when one of their interfaces is the target. While > you may see high packet loss across an ISP link, unless you are getting > similar numbers from all hops past that point you aren't looking at real > packet loss, since the transit packets are getting through fine. It's > just the routers themselves that are ignoring requests or discarding > responses in favor of pushing routed packets. Yes, the routers after Level3's edge router don't show similar packet loss, so this must be the edge router just de-prioritizing ICMP. Thank you for pointing out my mistake. -Tim _______________________________________________ NANOG mailing list [email protected] http://mailman.nanog.org/mailman/listinfo/nanog
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