I'd like to hear people's experiences using Cumulus Linux for bgp peering at their edge. How many peers do you have? Redistributing to IBGP? How many routes learned (after any inbound filtering)? What kind of hardware? Experience any snafus that couldn't be worked around? How well do communities, prefix/path filtering, and MEDs work for you? Any incompatibilities with Cisco or Juniper peers?
I'm about to configure a fully-redundant peering mesh between two PAN FWs speaking IBGP to two L3 switches (Dell S4048-ON, capable of ~128K routes each), each speaking with two independent upstream ISPs. I plan to take a full BGP view from all upstreams, but discard routes that originate outside of North America (99% of our traffic involves customers and partners in North America), or more than 2 AS hops away, or have a prefix longer than /20, giving us approximately 16,000-20,000 prefixes per peer. We'll use weighted default routes for everything else.
No comments:
Post a Comment