Re: [swinog] primary / backup BGP multi homed issue
On Thu, Sep 04, 2008 at 09:52:49AM +0200, Marco Fretz wrote: Hi SwiNOGers, We've the problem that sunrise is advertising our prefixes from our backup provider instead of the ones from our primary. This is most likely because our backup provider is a downstream customer from sunrise. Our prefixes then get advertised to level3 (and other sunrise upstream peers). Sunrise seems to be level3 downstream customer and prefer our prefixes from sunrise instead of our primary provider, too. The consequence is that most other ISPs are seeing only our prefixes over sunrise and our backup provider. Sunrise changed their as-communities recently so that's no longer possible for our backup provider to influence their local-pref. I think this might be a common problem in primary / backup BGP scenarios. Any ideas how to solve it? Prepend your own AS a few times. -- :wq Claudio ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] primary / backup BGP multi homed issue
On Thu, September 4, 2008 09:52, Marco Fretz wrote: Sunrise changed their as-communities recently so that's no longer possible for our backup provider to influence their local-pref. Where did you get this information from ? Sunrise definitely supports customer-settable communities to alter local pref. Regards, -jr ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] primary / backup BGP multi homed issue
- Original Message From: Claudio Jeker [EMAIL PROTECTED] Prepend your own AS a few times. this will not help, as L3 sets higher local preference for the prefixes from its customers. The guys at Sunrise are already working on this, don't worry :) ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] primary / backup BGP multi homed issue
Johannes Resch wrote: On Thu, September 4, 2008 09:52, Marco Fretz wrote: Sunrise changed their as-communities recently so that's no longer possible for our backup provider to influence their local-pref. Where did you get this information from ? Sunrise definitely supports customer-settable communities to alter local pref. http://www.db.ripe.net/whois?form_type=simplefull_query_string=searchtext=as-communities the part describing local-pref influencing is in the OBSOLETE SECTION. ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] primary / backup BGP multi homed issue
Sunrise changed their as-communities recently so that's no longer possible for our backup provider to influence their local-pref. Did you tried to mark your routes with the L3-communities for local-pref? There is a good chance your transit-providers will leave them on your route and thus make you able to influence your routing within L3. -- Best regards, Roman Hochuli Operations Manager nexellent ag Saegereistrasse 29 CH-8152 Glattbrugg Phone: +41 44 562 30 40 Fax: +41 44 562 30 41 URL: www.nexellent.ch X-NCC-RegID: ch.nexellent Imagination is the one weapon in the war against reality. -- Jules de Gaultier ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] primary / backup BGP multi homed issue
On Thu, September 4, 2008 10:32, Marco Fretz wrote: Johannes Resch wrote: Where did you get this information from ? Sunrise definitely supports customer-settable communities to alter local pref. http://www.db.ripe.net/whois?form_type=simplefull_query_string=searchtext=as-communities the part describing local-pref influencing is in the OBSOLETE SECTION. This whole section clearly needs to be updated. However, Sunrise BGP customers can always request the current community listing / supported options through their contacts at Sunrise. Regards, -jr ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] primary / backup BGP multi homed issue
Roman wrote: There is a good chance your transit-providers will leave them on your route... As long as i've been responsible: No Cheers, Günti -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roman Hochuli Sent: Thursday, September 04, 2008 12:16 PM To: [EMAIL PROTECTED] Subject: Re: [swinog] primary / backup BGP multi homed issue Sunrise changed their as-communities recently so that's no longer possible for our backup provider to influence their local-pref. Did you tried to mark your routes with the L3-communities for local-pref? There is a good chance your transit-providers will leave them on your route and thus make you able to influence your routing within L3. -- Best regards, Roman Hochuli Operations Manager nexellent ag Saegereistrasse 29 CH-8152 Glattbrugg Phone: +41 44 562 30 40 Fax: +41 44 562 30 41 URL: www.nexellent.ch X-NCC-RegID: ch.nexellent Imagination is the one weapon in the war against reality. -- Jules de Gaultier ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
