McAfee/AT&T Issue

Justin Krejci jkrejci at
Wed Feb 18 18:14:41 UTC 2009

We've also seen that busy routers are slower to respond to requests directed
at them as opposed to traffic routing thru them which can continue to work
without issue or performance loss.

-----Original Message-----
From: Kameron Gasso [mailto:kgasso-lists at] 
Sent: Wednesday, February 18, 2009 12:03 PM
To: Calhoun, Matthew
Cc: NANOG list
Subject: Re: McAfee/AT&T Issue

Calhoun, Matthew wrote:
> 9   212 ms   200 ms     * <--------Problem occurring
here. Sometimes traffic gets through, sometimes it doesn't
> 10   29 ms    26 ms    26 ms
> 11   26 ms    26 ms    26 ms []

Looks a lot like that hop is rate-limiting ICMP to itself.  Everything 
beyond it seems to be good from the looks of it.


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