[isp-bgp] Re: What small switch/router for full bgp routing table

[Dean Anderson <dean@...>]

If you are single homed for the time being, you can take a full feed from
abovenet and filter it down so that it fits in your router.  Then, when
you get a bigger router, and become multihomed, you just remove the
filter.  I did this for a time. Way back, I had a Cisco 7500 with
insufficient memory and two feeds, so I culled the routes to those
directly connected to the providers, and then default routed through both.  
This kinda-sorta-imperfectly load balances, and keeps running if one
fails. It worked, but not well (one default would get selected until
something happened to make it change), though failover worked perfectly,
which was the most important thing.

Now, as for routers, if you scan the telecom ads, there are some cheap 
boxes in the $6k range that run linux, and have a channelized DS3 card.  I 
think if I were doing it all over again, thats the way I'd go.

		--Dean

>  On Wed, 16 Jun 2004, Erik Hensema wrote:
> 
> > Hi,
> >
> > We're a small starting ISP on a tight budget, and are looking for a
> > switch/router for full bgp peering with abovenet (they advertise
> > 140,000 routes or so) and peering with the about 140 isps on the
> > ams-ix.
> >
> > Currently we think the Extreme Networks Summit 1i will suit our needs,
> > but I'm concerned it may have insufficient memory (128MB) to hold the
> > full bgp routing table. As far as I know the memory cannot be
> > upgraded.
> >
> > Any advice would be greatly appriciated.
> >
> > If the summit 1i won't cut it, this is what we need:
> > - 8 1 gbit ports, of which at least two are fiber ports
> > - redundancy/failover (we plan on buying two identical routers)
> > - must be able to route 1 gbit traffic
> >
> > Most equipment we look at is way to big/expensive for our needs :-/
> >
> > --
> > Erik Hensema / Systeembeheer IBN Media Groep
> >







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