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

How did we do it?

We hooked up both OSM OC12 atms to the Marconi atm switch (would have been a problem if more traffic than would fit, but there wasn’t).

•All peers were assigned new vlans matched to their old pvcs. The 6500 bridged routed encap allowed us to make ip connections across. In some sense was subset of TCCs, but cheaper.

•When each peer had their new line and gige int ready with new vlans, we hot-cut their line both ends to gige, moving the /30 w/o peers knowing!