as stated, yep. i was on the phone with them for over three hours yesterday.
On Thu, Oct 2, 2014 at 9:08 AM, Paul S. <[email protected]> wrote: > First time I'm seeing it, and I've been a Cogent client for quite a while. > > Have you tried getting in touch with their NOC yet? They're one of the > most responsive in the industry. > > > On 10/3/2014 午前 01:03, ryanL wrote: > >> hi. relatively new cogent customer. is what i've stated in my subject line >> kinda standard fare with them? >> >> i've discovered that when i advertise a /24 from inside a larger /22 to >> XO, >> (who peers with cogent), and then pull the /24 some time later, that >> cogent >> holds onto the /24 and then bounces packets around in their network a >> bunch >> of times for upwards of 8-10 minutes until they finally yank it. this >> effectively blackholes traffic to my /24 for anyone that is using a path >> thru cogent. >> >> example: http://ryry.foursquare.com/image/0e0K1K0t0W2M >> >> it's been a bit of a frustrating experience talking to their noc to >> demonstrate it, but i'm able to duplicate it on demand. even pushing >> routes >> using their communities to offload the circuit takes forever to propagate >> even on their own looking-glasses. >> >> thx >> >> ryan >> > >
