DMIT has isolated the issue, except AS174 and AS3257 single home network.
Nevertheless, Cogent's Los Angeles metropolitan area network is experiencing a severe outage, with some parts of the network unable to access the Internet at all.
Screenshot shows the reachability of DMIT's Cogent interface and the location of failure.
Since this issue has been isolated, traffic was divert to NTT, GSL, Arelion and GTT. DMIT will stop update the network status of Cogent.
Both inbount and outbount routes from Cogent are removed 8hrs ago, since it's unusable.
Post #1277
12.3K
/var/log/DMIT-NOC.log Los Angeles Major issue: Widespread underlying fiber-optic cable failures affecting Cogent and Zayo have led to reduced network stability in the Los Angeles area. Due to nested leasing arrangements within US Tier-1 backbones, the impact has extended to GTT…
