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Article #380Re: US-connectivity problems - at least from Vienna (fwd)
From: Ewald.Jenisch
Date: Fri, 26 Apr 1996 00:00
Date: Fri, 26 Apr 1996 00:00
83 lines
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3743 bytes
Liebe ACOnet-Gemeinde, Wahrscheinlich ist niemand entgangen, dass es "gewisse Probleme" mit internationaler connectivty gibt. Der Grund dafuer sind ganze Pulks von BGP up/downs auf der Verbindung Stockholm-USA. Dadurch kommt es zu Routing-Instabilitaeten, die sich u.a. so auswirken, dass der Traffic einmal ueber Wien->Paris, einmal ueber Wien->STH geht. Das Problem ist an Ebone NOC gemeldet, sie werden's an ICM weitergeben - Details s.u. In der Zwischenzeit ... "plase bear with us"... -ej -- Ewald Jenisch | E-mail: jenisch@cc.univie.ac.at Vienna University Computer Center | Universitaetsstrasse 7 | Tel: (+43 1) 406-58-22 x251 Fax x170 A-1010 Vienna, Austria | NIC-Handle: EJ63 ------------------------------ < Cut here > ------------------------------ > Subject: Re: US-connectivity problems - at least from Vienna > From: Bjorn Carlsson <bc@sunet.se> > Date: Fri, 26 Apr 96 10:48:36 +0200 > > Sigh.. Seems like the code in the ICM boxes has been updated, and the new > code works less than perfect. :-( > > I don't know if I can do much more than report it. > > --BC > > > Hi Ebone-NOC, > > > > We're seeing a problem with US-connectivity for quite some time now (> 1hr): > > > > Connectivity to the US is interrupted/unstable as seen from the > > Vienna-EBS1; sometimes traffic is running via STH->US, sometimes via > > Paris. > > > > > > I've taken a look at STH-VIE-EBS: > > > > STH-VIE-EBS#sh ip bgp summ > > BGP table version is 18630014, main routing table version 18630014 > > 31978 network entries (65314/128396 paths) using 7537368 bytes of memory > > 3031 BGP path attribute entries using 367524 bytes of memory > > 2301 BGP route-map cache entries using 36816 bytes of memory > > 2879 BGP filter-list cache entries using 46064 bytes of memory > > Dampening enabled. 0 history paths, 0 dampened paths > > > > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State > > 192.121.154.25 4 1755 2849703 2378589 18629343 0 424 1:32:09 > > 192.121.155.5 4 1755 292594 2408032 18629343 0 0 1w1d > > 192.121.156.41 4 1755 2271083 2392704 18630012 0 0 2d17 > > 192.121.156.117 4 1755 125792 2385169 18630012 0 0 3w1d > > 192.121.157.25 4 1755 326666 2379333 18539634 0 567 20:33:33 > > 192.121.158.5 4 1755 2251401 2411241 18630012 0 0 0:24:03 > > 192.121.159.241 4 1755 237543 2389003 18630012 0 0 21:58:44 > > 194.68.128.26 4 1883 97002 396722 18629500 0 0 1w1d > > 198.67.131.177 4 1800 4182166 644191 18629500 0 0 0:00:53 > > STH-VIE-EBS# > > > > > > BGP-peering with 1800 is going up and down in a matter of minutes. > > > > Is this a known problem? Can we/you do something against it? > > > > Thanks much in advance, > > -ewald > > > > > > -- > > Ewald Jenisch | E-mail: jenisch@cc.univie.ac.at > > Vienna University Computer Center | > > Universitaetsstrasse 7 | Tel: (+43 1) 406-58-22 x251 Fax x170 > > A-1010 Vienna, Austria | NIC-Handle: EJ63 >
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103637,9ad062ab1a55c17f,start X-Google-Attributes: gid103637,public From: Ewald.Jenisch@univie.ac.at Subject: Re: US-connectivity problems - at least from Vienna (fwd) Date: 1996/04/26 Message-ID: <199604260900.LAA02884@styx.cc.univie.ac.at> X-Deja-AN: 151641880 sender: daemon@newsfeed.ACO.net organization: Vienna University Computer Center: Mail/News-Gateway reply-to: ACOnet-Info@noc.aco.net, jenisch@cc.univie.ac.at newsgroups: at.network.aconet