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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: [Nanog] Cogent Router dropping packets
Joe Greco wrote: > For those unfamiliar, Cogent has a system where you set up an EBGP peering > with the Cogent router you're connected to, for the purposes of announcing > your routes into Cogent. However, these are typically smaller, aggregation > class routers, and do not handle full tables - so you don't get your routes > from that router. To get a full table FROM Cogent, you need to set up an > EBGP multihop session with them, to their nearest full-table router. I > believe they actually do all their BGP connections in that manner. Depends on the service you purchase. Fast Ethernet seems to be delivered as eBGP-multihop (the first hop is just a L3 switch), however DS-3 is handled as a single BGP session. I'm not sure if GigE or SONET services are handled as multihop or not. Probably all depends what hardware they have at each POP.... _______________________________________________ NANOG mailing list [email protected] http://mailman.nanog.org/mailman/listinfo/nanog
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