Everybody - thank you. Sorry for this late answer, got stuck with a problem in a remote site for some time.
>From what you said I'd think one provider is planning to give us a full BGP feed (but doesn't charge very much), while the other requires a smaller router because they want to filter most routes and charge a lot, I suppose for the (supposed?) continuous tweaking of the routes (what else?). I *assume* (we all know what that means) they think about using a small router at our site, just for redundancy and link switching in case one ISP does lose connectivity, but really won't use BGP at our site for the "best path" selection a lot. This could make sense if both ISP are connected to the rest of internet through the same node at some point, so there wouldn't be any big difference in using one path or the other except for connections to those ISPs itself. However I think although all local ISP do have a interconnection at a node named MIX-IT (Milan, Italy) these major ones all have different long range carriers (to the rest of Europe, to USA and some parts of ASIA if I remember correctly), so I'm still convinced something somewhere stinks, a strategy of that kind would be at best suboptimal. Heiko -- -- PREVINET S.p.A. www.previnet.it -- Heiko Herold [EMAIL PROTECTED] -- +39-041-5907073 ph -- +39-041-5907472 fax > -----Original Message----- > From: - jvd [mailto:[EMAIL PROTECTED] > Sent: Friday, June 20, 2003 9:50 PM > To: [EMAIL PROTECTED] > Subject: RE: BGP on 1720 ? [7:70960] > > > Hi, > > Just a few thoughts: > > 1. You can use something small like a 1720 to run BGP but the > trick here is > to filter all/some routes that you are receiving. The current > recommendation > from Cisco is 128MB for full BGP routing tables (I think the > tables stand on > 110 000 routes now). The second part would be to advertise > your registered > range to your two ISPs. > > 2. If you want to run full BGP tables you will need a router > with more punch > than the 1720. I did a proposal once with a 2650XM and the > 2691 is also a > good option. Next in line would be your 3640. Of course all > of these models > will need at least 128MB DRAM. > > As I say, just a few thoughts on a lazy Friday afternoon. > > Cheers, Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=71350&t=70960 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
