[j-nsp] TCAM full on EX8200?

[Will McLendon]

I think RAS probably has some insight into this, hopefully he will chime in.  I seem to recall reading somewhere (probably on this list) that by default the FIB is somehow partitioned such that routes of certain lengths go into certain sections of TCAM . . . perhaps you are running into that?  I also seem to remember there was a manual way to fix this . . . you probably want to go back in j-nsp list archive a ways.

Also IIRC things like ARP entries are also stored alongside the routes, so if these EX8200s are also serving some L2 domains, that could be eating into the available space as well.

I'm sorry I can't be more helpful, but we've never ran full tables into any EXs we've deployed, so have never run into TCAM utilization issues.

good luck, and please keep us posted on what you find out

Will


On Oct 12, 2011, at 6:36 PM, juniper-nsp-request at puck.nether.net wrote:

THE SHORT QUESTION:

How can I see how full my IPv4 FIB is, on an EX8200 with EX8200-40XS 
linecards and 11.3R2.4 ? I can connect to fpc and give the show 
commands, but I need help interpreting the results.

If it actually turns out to be full, is there something I should do to 
support the 500K routes that I see in the data sheet? I mean e.g. 
something like the sdm templates or "mls cef maximum-routes" in the 
cisco boxes?