On 31 May 2023, at 01:51, Thangalin <thanga...@gmail.com> wrote: > > From twelve99.net: > > If you’re interested in our IP city prefixes, we have a lookup table on our > website: https://www.arelion.com/our-network/bgp-routing/bgp-communities > Scroll down to “Origin + Communities” and expand that section. You can see > that sea-b1 (your hop 8) is not in Brussels, but is our router in Seattle. > > My guess would be that the hostname “us-was” for Liberty Global (aorta.net) > stands for U.S.A. and Washington D.C, not Warsaw. They’re probably using ICMP > tunneling for their MPLS backbone, that’s why the ping times are weird for > you.
Good point about the MPLS. I was using https://www.geolocation.com/ to do the geolocation and it claims Warsaw but that - in hindsight - is wrong. So "us-was" is likely to be Washington as per the name and is also the device "taking the blame" for the entirety of the MPLS latency. Since that will include the transatlantic time the extra 75ms isn't quite so bad as it looks. — Bruce Horrocks Hampshire, UK ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___________________________________________________________________________________
