No peering between TeliaSonera and Cogent Communications

vs.

I noticed yesterday that I could not visit The Daily WTF or Podomatic. Today I started investigating and __henke__ in #data on irc.freenode.net told me that my ISP Telia and Cogent Communications had stopped peering.

Related links in approximately chronological order:

• The Telia-Cogent Spat Could Ruin the Web For Many (gigaom.com)
• Cogent depeer’er Telia (sunech.com)
• Amerikansk operatör stoppar Telia (idg.se, in Swedish)
• UpdateTelia och Cogent i uppgraderingsbråk (idg.se, in Swedish)
• UpdateCogent: "Telia bröt mot kontraktet" (idg.se, in Swedish)
• UpdateInformation om stängda förbindelser mellan Telia och Cogent(telia.se, in Swedish)
• UpdateCogent CEO: Peering Breakdown Is Telia’s Fault (gigaom.com)

The networks affected are AS1299 (TeliaSonera International Carrier, TSIC) and AS174 (Cogent Communications).

Update It seems like www.webservertalk.com is unreachable for the same reason.