Hi guys,
We have a customer with an ASR1002-X supporting redundant links to the Internet, currently taking only default routes to both in a primary/failover scenario. However, they want to have the absolute best path to all destinations to the Internet, and so are considering taking full routes from both providers. According to their research the ASR1002-X supports up to 1,000,000 routes and to support two full BGP feeds, Cisco recommends upgrading from the default 1 GB RAM to 16 GB RAM. Questions: - It looks like a full BGP routing table is currently about 566,000 routes. Since only the best route to any given destination is stored in the routing table, is it safe to assume that even taking (2) full feeds, the customer will stay well below the 1,000,000 route maximum? (the number of internal routes is negligible) - Is 16GB RAM really necessary for (2) full BGP feeds in the real world? Seems like overkill to me. I seem to recall that when "soft-reconfiguration inbound" is enabled with (2) peers, it in effect causes 1.5x or 2x the amount of RAM to be used. However, even with this caveat, shouldn't 8GB RAM be sufficient? - Safe to assume the processor on an ASR1002-X should have no problem managing 2 full BGP feeds? About 200Mbps aggregate bandwidth currently flows through the router, and it consistently runs at 0% CPU utilization Thanks for sharing your experience. Best regards, Adam _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
