nanog mailing list archives
Re: Partial vs Full tables
From: Chuck Anderson <cra () WPI EDU>
Date: Fri, 5 Jun 2020 13:45:07 -0400
On Fri, Jun 05, 2020 at 10:20:00AM -0700, William Herrin wrote:
On Fri, Jun 5, 2020 at 9:49 AM Saku Ytti <saku () ytti fi> wrote:The comparison isn't between full or default, the comparison is between static default or dynamic default. Of course with any default scenario there are more failure modes you cannot route around. But if you need default, you should not want to use dynamic default.It's a little more nuanced than that. You probably don't want to accept a default from your transit but you may want to pin defaults (or a set of broad routes as I did) to "representative" routes you do accept from your transit. By "pin" I mean tell BGP that 0.0.0.0/0 is reachable by some address inside a representative route you've picked that is NOT the next hop. That way the default goes away if your transit loses the representative route and the default pinned to one of your other transits takes over.
I do the above using routes to *.root-servers.net to contribute to the aggregate 0/0.
Current thread:
- Re: Partial vs Full tables, (continued)
- Re: Partial vs Full tables Ca By (Jun 04)
- Re: Partial vs Full tables Tore Anderson (Jun 05)
- Re: Partial vs Full tables Saku Ytti (Jun 05)
- Re: Partial vs Full tables Tore Anderson (Jun 05)
- Re: Partial vs Full tables Saku Ytti (Jun 05)
- Re: Partial vs Full tables Tore Anderson (Jun 05)
- Re: Partial vs Full tables Saku Ytti (Jun 05)
- RE: Partial vs Full tables Michael Hare via NANOG (Jun 05)
- Re: Partial vs Full tables Saku Ytti (Jun 05)
- Re: Partial vs Full tables William Herrin (Jun 05)
- Re: Partial vs Full tables Saku Ytti (Jun 05)
- Re: Partial vs Full tables Chuck Anderson (Jun 05)
- Re: Partial vs Full tables Mark Tinka (Jun 09)
- Re: Partial vs Full tables Mark Tinka (Jun 09)
- Re: Partial vs Full tables Job Snijders (Jun 10)
- Re: Partial vs Full tables Mark Tinka (Jun 11)
- Re: Partial vs Full tables Tore Anderson (Jun 05)
- Re: Partial vs Full tables William Herrin (Jun 05)
- Re: Partial vs Full tables Yang Yu (Jun 05)
- Re: Partial vs Full tables William Herrin (Jun 05)
- Re: Partial vs Full tables Ryan Woolley (Jun 07)
- Re: Partial vs Full tables Saku Ytti (Jun 07)