On 22/06/07, paul at clubi.ie <paul at clubi.ie> wrote:
> ICMP directed at a host, and conditions that require ICMP
> control messages to be sent (like TTL running out on a packet
> being forwarded - traceroute) tend to be:
Not to mention the fact that in an MPLS core - the ICMP TTL expired
packet often has to continue down the LSP to reach the remote end
point before being sent back over the return LSP, mean that the
"latency" value for all the MPLS hops tends to be pretty identical.
Bonus geek points for anyone who can tell me why this doesn't apply to
the second last router in the LSP.
Thomas
--
Thomas Bridge
CCIE #14108
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