nanog mailing list archives
Re: FW: Getting pretty close to default IPv4 route maximum for 6500/7600routers.
From: Jon Lewis <jlewis () lewis org>
Date: Fri, 13 Jun 2014 10:54:32 -0400 (EDT)
On Mon, 9 Jun 2014, John van Oppen wrote:
It is generally much better to do the following: mls cef maximum-routes ipv6 90 mls cef maximum-routes ip-multicast 1 This will leave v4 and mpls in one big pool, puts v6 to something useful for quite a while and steals all of the multicast space which is not really used on most deployments. This gives us the following (which is pretty great for IP backbone purposes in dual stack): #show mls cef maximum-routes FIB TCAM maximum routes : ======================= Current :- ------- IPv4 + MPLS - 832k (default) IPv6 - 90k IP multicast - 1k
I was just looking at / thinking about this again, and though I don't disagree that doing the split your way is probably better, I think it's a moot point. I strongly suspect these boxes will run out of RAM before they're able to utilize another 256k routing slots with multiple full v4 tables.
---------------------------------------------------------------------- Jon Lewis, MCP :) | I route | therefore you are _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
Current thread:
- Re: FW: Getting pretty close to default IPv4 route maximum for 6500/7600routers., (continued)
- Re: FW: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Bryan Tong (Jun 09)
- Re: FW: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Andrew Jones (Jun 09)
- Re: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Bjoern A. Zeeb (Jun 10)
- Re: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Saku Ytti (Jun 10)
- Re: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Bjoern A. Zeeb (Jun 10)
- Re: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Saku Ytti (Jun 10)
- Re: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Massimiliano Stucchi (Jun 11)
- Re: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Randy Epstein (Jun 10)
- RE: Getting pretty close to default IPv4 route maximum for 6500/7600routers. John van Oppen (Jun 10)
- Re: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Randy Epstein (Jun 10)
- Re: FW: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Jon Lewis (Jun 13)
- Re: FW: Getting pretty close to default IPv4 route maximum for 6500/7600routers. Nick Hilliard (Jun 13)