How I spent last summer: Converting MAX to 2547 VPNs Converting NGIX/DC atm to gige Dan Magorian Director, Engineering and Operations magorian@maxgigapop.net

So we realized that

•Most gigapops have only one service offering, and give everyone a mix of I2 and ISP routes.

•The problem would only get worse once we had customers not subscribed to Abilene (now do).

•There wasn’t an easy way out that could “get back” routes not preferred by bgp when sub-setted by bgp communities for advertisement.

•We had seen same issue in minor way with vBNS, but NGIX Abilene/vBNS peering solved it

•Lots of folks run 2547, and Juniper supports well