Thats an interesting problem. The strangest thing is why Digex can't apply the filter that permits only their connected networks! Even if they did figure it out where will you point default? I suppose you could use two defaults and let fast switching of CEF per destination "load share" as you wouldn't want per packet.
Get your 7200 with 256M back! Dave Bob Timmons wrote: > > Hey all, > > I've got a problem. We're running a 7206vxr as our Internet router in NYC. > It has 256MB of RAM and uses 2 T1's, each one to a different provider. > We're using BGP to help 'load-share' and receiving full routes from each > provider. The company needs this router for another use and has replaced it > with a 3640. The issue is, the 3640 maxes out at 128MB of RAM and BGP is > running out of memory. I've contacted each of my providers, UUNet & Digex > (or Worldcom & Intermedia). UUNet sucessfully changed the policy to > 'partial routes', so I'm now receiving about 49k routes from UUNet, down > from about 110k routes. Digex, on the other hand, cannot seem to help me. > Each time we've tried to modify the policy (on their side), I get only 1 > route (according to the show ip bgp summary command) and it, basically, > breaks. > > The 'show ip bgp summary' outputs both before & after are as follows: > > sho ip bgp summ > BGP router identifier (w.x.y.z), local AS number 22791 > BGP table version is 3769794, main routing table version 3769794 > 111999 network entries and 161920 paths using 16693023 bytes of memory > 29127 BGP path attribute entries using 1748340 bytes of memory > 25111 BGP AS-PATH entries using 642872 bytes of memory > 0 BGP route-map cache entries using 0 bytes of memory > 0 BGP filter-list cache entries using 0 bytes of memory > BGP activity 190176/121829 prefixes, 1019863/857943 paths, scan interval 15 > secs > > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down > State/PfxRcd > 157.130.248.37 4 701 489287 488922 3769794 0 0 04:44:43 49974 > 206.181.62.29 4 2548 1331896 252164 3769794 0 0 6d09h 111944 > ---------------------------------------------------------------------------- > ---- > sho ip bgp summ > BGP router identifier (w.x.y.z), local AS number 22791 > BGP table version is 49976, main routing table version 49976 > 49973 network entries and 49972 paths using 6646373 bytes of memory > 9237 BGP path attribute entries using 554340 bytes of memory > 7881 BGP AS-PATH entries using 196336 bytes of memory > 0 BGP route-map cache entries using 0 bytes of memory > 0 BGP filter-list cache entries using 0 bytes of memory > BGP activity 240151/233844 prefixes, 1069845/1019873 paths, scan interval 15 > secs > > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down > State/PfxRcd > (snip) 4 701 508340 488938 49976 0 0 00:01:02 49969 > (snip) 4 2548 1331909 269304 49976 0 0 00:01:03 1 > ---------------------------------------------------------------------------- > ---- > > What problem am I trying to solve? How can I load-share the two T1's with > or without BGP? We've got about 500 users in NYC that use these pipes for > their Internet connectivity. We're supposed to upgrade to a fractional T3, > but, as anyone who has worked in a corporate environment can attest, it > doesn't happen overnight, nevermind the telco portion. > > My outbound load sharing is being done by my firewall. We've split the 2 > /22 networks into 8 /24 networks and are sending 4 /24's to each T1. > > any help would be appreciated > > Bob -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=50394&t=50382 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
