For some more information, this previous document and presentation make good resources: Document: http://www.nanog.org/meetings/nanog47/presentations/Sunday/RAS_Traceroute_N4... There's also a presentation here: http://www.nanog.org/meetings/nanog45/presentations/Interpret_traceroutes.wm... On Sat, Nov 3, 2012 at 11:10 PM, Randy <randy_94108@yahoo.com> wrote:
--- On Sat, 11/3/12, Christopher Morrow <morrowc.lists@gmail.com> wrote:
one router along the path showing loss that does not continue to affect the rest of the path simply means the cpu on
From: Christopher Morrow <morrowc.lists@gmail.com> Subject: Re: qwest.net dropping packets... wife would like someone to pick them up please... To: "Randy Bush" <randy@psg.com> Cc: "North American Network Operators' Group" <nanog@nanog.org> Date: Saturday, November 3, 2012, 7:04 PM On Sat, Nov 3, 2012 at 3:07 AM, Randy Bush <randy@psg.com> wrote: that router
is a bit too busy to respond to icmp messages
trivial footnote: some folk configure some routers to rate limit icmp
other trivial footnote, not all traceroute is icmp.
True, wrt to destination. However all intermediate(including penultimate) hops reveal themselves via ICMP type 11 Code 0 (TTL exceeded in transit) ./Randy