[c-nsp] SUP720's memory, looking at options..

James Jun james at towardex.com
Thu Jul 7 11:08:06 EDT 2016

On Thu, Jul 07, 2016 at 12:20:47AM -0400, Howard Leadmon wrote:
> Has anybody come up with a good guess as to what is a good division of the TCAM for BGP routing?    I have had mine at 640K for IPv4 for a while, but looking at the v4 to v6 ratios, I am thinking maybe 768 for v4 may be a better guess..

Yes, we use the following on 7600/6500 platforms:

mls cef maximum-routes ipv6 90
mls cef maximum-routes ip-multicast 1  

This should allocate most of your TCAM into IPv4/MPLS -- 832k for IPv4 + MPLS, 90k for IPv6, 1k for multicast.


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