nanog mailing list archives
Re: Single AS Number for multiple prefixes in different country
From: Michael Hallgren <m.hallgren () free fr>
Date: Mon, 17 Jan 2011 22:06:26 +0100
Le lundi 17 janvier 2011 à 12:00 -0800, Michel de Nostredame a écrit :
On Mon, Jan 17, 2011 at 12:20 AM, Patrick W. Gilmore <patrick () ianai net> wrote:On Jan 17, 2011, at 12:32 AM, Michel de Nostredame wrote: I do not think that paragraph means what you think it means. I've seen my own AS in full tables from upstreams using Juniper routers many times.According to the problem I had, the behavior is more like "when I receive asX from 1st direct link, I will not send to asX on 2nd direct link by default." For example, I (say as#65001) advertised "10.1.0.0/16 ^65001$" on 1st link to my ISP, say as#65000. and advertise "10.2.0.0/16 ^65001$" to the same ISP on 2nd link. Then, I will not receive "10.2.0.0/16 ^65000 65001$" on 1st link, and will not receive "10.1.0.0/16 ^65000 65001$" on 2nd link. I believe my ISP did not intentionally filter out my routes, but it more like default behavior as described in document. Setting up default-route on both of my border routers addressed the needs. After we established the leased line between two sites, we no longer need to send cross site traffic via ISP.
I feel, asking to recieve (and use) default route appears "cleaner" than hacking routing protocol ways. Unless, one does as you just did. Right? Cheers, mh
-- Michel~
Current thread:
- Single AS Number for multiple prefixes in different country Harris Hui (Jan 14)
- Re: Single AS Number for multiple prefixes in different country Patrick W. Gilmore (Jan 14)
- Re: Single AS Number for multiple prefixes in different country Bogdan (Jan 14)
- Re: Single AS Number for multiple prefixes in different country Michel de Nostredame (Jan 14)
- Re: Single AS Number for multiple prefixes in different country Patrick W. Gilmore (Jan 14)
- Re: Single AS Number for multiple prefixes in different country Michel de Nostredame (Jan 16)
- Re: Single AS Number for multiple prefixes in different country Patrick W. Gilmore (Jan 17)
- Re: Single AS Number for multiple prefixes in different country Jack Bates (Jan 17)
- Re: Single AS Number for multiple prefixes in different country Michel de Nostredame (Jan 17)
- Re: Single AS Number for multiple prefixes in different country Michael Hallgren (Jan 17)
- Re: Single AS Number for multiple prefixes in different country Michel de Nostredame (Jan 17)
- Re: Single AS Number for multiple prefixes in different country Bogdan (Jan 14)
- Re: Single AS Number for multiple prefixes in different country Patrick W. Gilmore (Jan 14)
- Re: Single AS Number for multiple prefixes in different country Graham Wooden (Jan 15)
- Re: Single AS Number for multiple prefixes in different country Joel Jaeggli (Jan 15)