nanog mailing list archives
Re: Possible explanations for a large hop in latency
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Fri, 27 Jun 2008 03:16:09 +0200 (CEST)
On Thu, 26 Jun 2008, John T. Yocum wrote:
The explanation I got, was that the latency seen at the first hop was actually a reply from the last hop in the path across their MPLS network. Hence, all the following hops had very similar latency.Personally, I thought it was rather strange for them to do that. And, I've never seen that occur on any other network.
This is standard for MPLS, the ICMP TTL expire message is sent along the LSP and returned via the router at the end of the LSP.
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- Possible explanations for a large hop in latency Frank Bulk (Jun 26)
- Re: Possible explanations for a large hop in latency James R. Cutler (Jun 26)
- Re: Possible explanations for a large hop in latency John T. Yocum (Jun 26)
- RE: Possible explanations for a large hop in latency Frank Bulk - iNAME (Jun 26)
- Re: Possible explanations for a large hop in latency John T. Yocum (Jun 26)
- Re: Possible explanations for a large hop in latency Mikael Abrahamsson (Jun 26)
- Re: Possible explanations for a large hop in latency Robert Richardson (Jun 26)
- RE: Possible explanations for a large hop in latency Frank Bulk - iNAME (Jun 26)
- RE: Possible explanations for a large hop in latency Frank Bulk - iNAME (Jun 26)
- Re: Possible explanations for a large hop in latency Randy Bush (Jun 26)
- Re: Possible explanations for a large hop in latency Warren Kumari (Jun 27)
- RE: Possible explanations for a large hop in latency Frank Bulk - iNAME (Jun 26)
- RE: Possible explanations for a large hop in latency Mikael Abrahamsson (Jun 26)
- RE: Possible explanations for a large hop in latency Frank Bulk - iNAME (Jun 26)
- Re: Possible explanations for a large hop in latency Tim Peiffer (Jun 26)
- Re: Possible explanations for a large hop in latency bensons (Jun 26)