Re: Something to watch out for...
- To: "David R. Conrad" <davidc at apnic dot net>
- Subject: Re: Something to watch out for...
- From: gih at telstra dot net (Geoff Huston)
- Date: Tue, 31 Dec 1996 18:27:39 +1000
- Cc: apops at apnic dot net
- Sender: firstname.lastname@example.org
As usual there is no single route count for the Internet - it depends on your topological location as to what a full table looks like. From where I sit it's not _that_ bad - a mere 41,471 routes :-) #show ip bgp sum BGP table version is 3495134, main routing table version 3495134 41471 network entries (45113/84284 paths) using 8110492 bytes of memory cheers, Geoff At 3:24 PM 31/12/96, David R. Conrad wrote: >Not sure how many ISPs in the region run with full routing, but... > >Regards, >-drc > >------- Forwarded Message > >Date: Mon, 30 Dec 1996 22:28:15 -0600 >From: Jeremy Porter <jerry at fc dot net> >To: Paul Ferguson <pferguso@Cisco.COM> >cc: nanog at merit dot edu >Subject: Re: Film at 11:00 > >In message <188.8.131.5261230154408.00691d90 at lint dot cisco dot com>, Paul Ferguson write >s: >>Looks like the 45k mark was reached: >> >>Table History >> >> >>Date Prefixes >>231296 43352 >>241296 44089 >>251296 43735 >>261296 43391 >>271296 43093 >>281296 43912 >>291296 45352 >>301296 45532 > >I would like to note, that at 45,000+ prefixes even with >prefix length filters dropping that down to 37,000 prefixes >a 16Meg cisco router can no longer hold a reasonable table. >It might be ok if people ran flap dampening at their boarders, >but with several flaps per second per provider, and the extra >memory and cpu used by dampening and filter-lists, >those old 68030s can't cut it. > >For those people that still have "full routes" going into >2500 series routers, i.e. smaller dual attached providers, you'd >better keep an eye out for your BGP sessions to start randomly >dropping as you run out of memory. (Oh and if this happens enough >Sprint and Digex will dampen your prefixes, and possible others...) > >- --- >Jeremy Porter, Freeside Communications, Inc. jerry at fc dot net >PO BOX 80315 Austin, Tx 78708 | 1-800-968-8750 | 512-458-9810 >http://www.fc.net > >------- End of Forwarded Message