[c-nsp] 7604/sup32 (minor correction)

Robert Blayzor rblayzor.bulk at inoc.net
Tue Jan 8 13:00:56 EST 2008


Ian Cox wrote:
> It forwards in hardware if the FIB will fit into the hardware FIB 
> table. The full internet table will not fit into a 
> PFC2/PFC3a/PFC3b/FFC3a/DFC3b/PFC3C/DFC3C anymore since the hardware 
> table, even after changing from the default will only get you 239k 
> routes. For full routes one needs to use a SUP7203bXL / RSP720-3CXL, 
> with XL DFCs. If you don't use XLs and then you wind up with FIB 
> exception and packets forwarded in software.


Full routing tables *do* fit in a 3B (barely), at least for now. 
Current table is at about 237k routes, max is 245k routes.  So no sense 
in looking at it for a full route table today, as you'd only be 
replacing them with the XL in a few short months. (maybe sooner)

-- 
Robert Blayzor
INOC
rblayzor at inoc.net
http://www.inoc.net/~rblayzor/

Unix is user friendly - it's just picky about it's friends


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