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Possible explanations for a large hop in latency
- Subject: Possible explanations for a large hop in latency
- From: swmike at swm.pp.se (Mikael Abrahamsson)
- Date: Fri, 27 Jun 2008 08:50:52 +0200 (CEST)
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On Thu, 26 Jun 2008, Frank Bulk - iNAME wrote:
> Interestingly enough, when I trace from my Cisco router it seems to show
> some MPLS labels after the hop of interest (12.88.71.13 to 12.122.112.78,
> only 24 msec here!). I'm not sure how our Cisco box derives these from a
> foreign network.
The ICMP packet (TTL exceeded in transit) contains a copy of the packet
which TTL expired, including the labels, so label information is available
to traceroute.
--
Mikael Abrahamsson email: swmike at swm.pp.se