Tens of thousands of public internet addresses located on Cogent's backbone are no longer accessible from Sprint Customers. This disruption is affecting thousands of web properties including WebProNews.com. Drudgereport.com was also affected by this outage but has apparently managed to route around Sprint's network.
According to personnel inside Cogent, negotiations with Sprint regarding peering arrangements fell apart and Sprint "pulled the plug" on all traffic to and from Cogent's network.
This breakage can be viewed at internetpulse.net, a site that monitors peering amongst the largest network backbone providers.
Peering arrangements are common amongst large backbone providers and assure traffic from one network will make it to its destination network. Cogent is no stranger to peering disputes. Cogent pulled the plug on Telia, one of the largest backbones in Europe. Cogent has also had peering problems with Level3 in the fall of 2005 resulting in network breakage.
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