GSRs and growing bgp tables WAS:AW: [c-nsp] Growing BGP tables

[Michael Lyngbøl]

On 22.11.2004 19:51:57 +0000, Gunther Stammwitz wrote:

[...]

> > Early GRP cards have a 256M limit, mostly A's but some B's 
> > also we've found. The good news is that the PRP-2 seems to 
> > work as a direct replacement with 12.0-27.S3 without any 
> > issues [at least in our env].
> 
> I have a gsr8/40 with an ordinary GRP (the fist version / a-version) that
> has only 256Megs of ram and runs 3 full views. currently there are 27479020b
> free so I can hold about 200.000 routes I'd expect. Soft-reconfiguration is
> disabled of course since this would cost about 10 to 15 MB Ram.
> 
> The limit might be my ge-gbic-sc-b card since it has only 128MB route
> memory.
>   FRU:  Linecard/Module: GE-GBIC-SC-B=
>         Route Memory: MEM-GRP/LC-128=
>         Packet Memory: MEM-LC1-PKT-512= 
> On the linecard itself there are 10759088 bytes free so that's 10 MB and so
> I'm going hit the limit sooner or later. Argh.

Well, I've seen 1p GigE cards (eng1) w/ 128MB run with 450k free memory
;-) but I wouldn't recommend that.

> I'm currently looking for another Cisco.
> What would you say: GRP with 256MB or GRP-B with 512MB?

GRP is slow. Get a GRP-B w/ at least 1GB. We deploy GRP-B's w/ 2GB of
RAM. GSR with full views:

               Head     Total(b)     Used(b)     Free(b)   Lowest(b)  Largest(b)
Processor    3F9F5A0   1994787424   254222112   1740565312   1731575164 1727003064

> GE-GBIC-SC or GE-GBIC-SC-B. Both have 128MB but can be upgraded to 256MB. Is
> that necessary... And what do you think: when will this happen?

I would spend my money on a real line card, the 4p GigE (4GE-SFP-LC)
with 256MB.

/Michael