[c-nsp] Using older VIP2's in non-demanding apps

[Alex Rubenstein]

We have VIP2-50's doing lots of stuff.

'lots of stuff' to us means DS3, T1 aggregation, ATM and FRASI aggregation 
(via PA-A3), some lt2p, etc.

The 7500 is still a very venerable platform, in the sub 100 mb/s range.

Considering the price of RAM these days, though, don't bother not putting 
RAM in. Load the (presumably) RSP4 to 256, and the VIP2-50's to 128 megs. 
It can still swallow a full table without a problem, and with the new BGP 
in 12.0S, is supposedly much better. I've not played with this.





On Wed, 6 Apr 2005, Bill Wichers wrote:

>
> Has anyone tried using older or low-mem VIP2's (VIP2-40's, or VIP2-50's
> with 64MB SDRAM or less) in low-load edge apps? I have a bunch of old
> VIP2s laying around and have been wondering if they could be used in our
> colo facilities where they're only handling traffic to servers -- no
> "real" routed links to other routers using BGP, EIGRP, etc. I am hoping
> maybe to get some more use from the old VIP2's where they don't have to
> deal with routing and thus high memory use, but I'm not sure if the VIP2's
> still need a lot of memory to handle routes when they're not passing any
> routes on themselves. Hopefully that makes sense :-)
>
> We always use VIP2-50's w/ 128 MB SDRAM for links to our other routers
> where full route tables must be passed, and they show pretty high memory
> use in that application. We had to mothball some older VIP2-40's and have
> a few VIP2-50s that would be useful again if there is an application where
> their low CPU (in the case of the -40), or low memory config (in the case
> of the -50) wouldn't be a problem. Any ideas? Advice? Expierience? I hate
> to just junk the old blades or sell them for peanuts on Ebay...
>
>     -Bill
>
> *****************************
> Waveform Technology
> UNIX Systems Administrator
>
>
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-- 
Alex Rubenstein, AR97, K2AHR, alex at nac.net, latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net