I understand PNI > public peering > transit. Until proven otherwise harmful, I'd shift everything one could over to no or low cost connections. IE: If you have peering with someone, only use not peering if the peering fails. With 75k routes, you ought to be moving more than 3% of your total traffic through them. Are you saying that you have 40k routes that you have cheaper than Cogent connections for?
I understand cost isn't everything, but once you're limiting your routes to customer only, you've eliminated most sources of congestion. ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP ----- Original Message ----- From: "Paul Stewart" <p...@paulstewart.org> To: af@afmug.com Sent: Saturday, July 2, 2016 12:34:51 PM Subject: Re: [AFMUG] Cogent Not sure what there is to take advantage of … we prefer peering always over transit. PNI higher than public peering – pretty standard stuff for a lot of networks…. 75k or so routes from them on-net of which about 35k are “best route” against other peered route options to their customers. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Mike Hammett Sent: July 2, 2016 8:49 AM To: af@afmug.com Subject: Re: [AFMUG] Cogent I think you need some BGP tweaks to better take advantage of Cogent, given the scale of their network. http://bgp.he.net/report/peers http://as-rank.caida.org/ http://research.dyn.com/2016/04/a-bakers-dozen-2015-edition/ ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com/images/fbicon.pnghttp://www.ics-il.com/images/googleicon.pnghttp://www.ics-il.com/images/linkedinicon.pnghttp://www.ics-il.com/images/twittericon.png Midwest Internet Exchange http://www.ics-il.com/images/fbicon.pnghttp://www.ics-il.com/images/linkedinicon.pnghttp://www.ics-il.com/images/twittericon.png The Brothers WISP http://www.ics-il.com/images/fbicon.pnghttp://www.ics-il.com/images/youtubeicon.png From: "Paul Stewart" < p...@paulstewart.org > To: af@afmug.com Sent: Saturday, July 2, 2016 7:23:50 AM Subject: Re: [AFMUG] Cogent That number of directly connected customers is dropping … we used to buy transit from them a number of years back – a lot of issues with routing in different regions, mainly in the US … then we dropped their transit and peered with them on PNI’s. The traffic (which is only their on-net traffic to be specific) hasn’t changed much in last couple of years, I think it’s actually dropped some – but regardless it accounts for only 3% of our traffic in total …. Paul From: Af [ mailto:af-boun...@afmug.com ] On Behalf Of Peter Kranz Sent: July 2, 2016 2:04 AM To: af@afmug.com Subject: Re: [AFMUG] Cogent Cogent is great as long as you have another peer to balance out “issues”. They have a shitload of the internet as directly connected customers. -PK From: Af [ mailto:af-boun...@afmug.com ] On Behalf Of Mike Hammett Sent: Friday, July 01, 2016 6:44 PM To: af@afmug.com Subject: Re: [AFMUG] Cogent Location does make a big difference. I would in no way use them for a single upstream. For one, Cogent doesn't have the entire IPv6 Internet. They are great in a mix, especially if you have a route management platform or take only customer routes. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com/images/fbicon.pnghttp://www.ics-il.com/images/googleicon.pnghttp://www.ics-il.com/images/linkedinicon.pnghttp://www.ics-il.com/images/twittericon.png Midwest Internet Exchange http://www.ics-il.com/images/fbicon.pnghttp://www.ics-il.com/images/linkedinicon.pnghttp://www.ics-il.com/images/twittericon.png The Brothers WISP http://www.ics-il.com/images/fbicon.pnghttp://www.ics-il.com/images/youtubeicon.png From: "Jason McKemie" < j.mcke...@veloxinetbroadband.com > To: af@afmug.com Sent: Friday, July 1, 2016 5:52:04 PM Subject: [AFMUG] Cogent Does anyone have experience with Cogent as a primary upstream? Good, bad, ugly? I assume the service location makes some difference as well. -Jason
