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ASR vs 6500 max routes

paul amaral
Level 4
Level 4

 

 

Currently I have a 6500 with one gig of ram, terminating a 1 eBPG and 1 iBGP link using about 190 Megs of memory taking full router about 720K+ routes.

 

BGP table version is 21786344, main routing table version 21786344

BGP using 190163660 total bytes of memory

 

I did have to issues the mls cef maximum-routes ip 968 command on the 6500 as I was running out of cef memory which I believe is in tcam to store the routes?

 

 

I’m going to be upgrading to an ASR with 8 gigs of ram, however the specs tell me I can only have 1 million routes. So how can an ASR only support 1 Million routes with 8 gigs of ram. What am I missing here ? if this a software limit of the platform tcam and no necessarily  the physical ram ?

 

With 8-GB memory:

  • Up to 1,000,000 IPv4 routes or 1,000,000 IPv6 routes
  • BGP RR Scalability up to 8,000,000 IPv4 routes or 6,000,000 IPv6 routes

With 16-GB memory:

  • Up to 4,000,000 IPv4 routes or 4,000,000 IPv6 routes
  • BGP RR Scalability up to 24,000,000 IPv4 routes or 17,000,000 IPv6 routes

 

 

TIA, Paul

1 Reply 1

Hello,

 

which ASR ? 1K ? 9K ? Post the output of 'show version'...

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