For the last decade, we've been using a Redback SMS 500 to terminate our DSL customers, delivered via ATM DS3.
Recently, however, a few customers (as well as the partners of the company) have expressed a desire to bond 2 DSL circuits. Unfortunately, we've discovered that the customers who have Comtrend modems cannot negotiate LCP with the Redback when ppp multilink is enabled...after working through this with Comtrend, they demonstrated that the Redback is violating RFC 1990, and because of this and the fact that the Comtrend modem didn't support MP, it was unable to negotiate LCP. At the same time, we're starting to get a little nervous about relying on Redback as a platform, given that all the equipment we currently use is EOL and Redback has long since been acquired. We have spares, but clearly it's a deadend. So, we're investigating migrating to a 7200(VXR) platform for DSL aggregation. I was curious about a couple of things: 1) Given that Verizon delivers all of the DSL connections on a region-based series of UBR PVCs, what is the best way to bond two DSL circuits, given that they would not be on private PVCs? Is MLPPP possible in that configuration? Or would I need to do CEF per-packet? Given the archives on this list, I'm leaning toward per-packet CEF via radius assigned routes. I know we won't get ideal performance, but it should be an improvement over a single DSL connection nonetheless. 2) What IOS do people suggest for ATM DSL aggregation...the router won't be doing anything else other than OSPF. Thanks, Andy --- Andy Dills Xecunet, Inc. www.xecu.net 301-682-9972 --- _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
