nanog mailing list archives
Re: Partial vs Full tables
From: Alejandro Acosta <alejandroacostaalamo () gmail com>
Date: Tue, 9 Jun 2020 11:35:29 -0400
Hello,Some time ago we had a similar discussion on this list, in that moment I shared a small study we did in LACNIC but we had it only in Spanish. Here is the version in English (BGP: To filter or not to filter by prefix size. That is the question ):
https://aaaa.acostasite.com/2019/07/bgp-to-filter-or-not-to-filter-by.html Alejandro, On 6/4/20 11:00 PM, James Breeden wrote:
I have been doing a lot of research recently on operating networks with partial tables and a default to the rest of the world. Seems like an easy enough approach for regional networks where you have maybe only 1 upstream transit and some peering.I come to NANOG to get feedback from others who may be doing this. We have 3 upstream transit providers and PNI and public peers in 2 locations. It'd obviously be easy to transition to doing partial routes for just the peers, etc, but I'm not sure where to draw the line on the transit providers. I've thought of straight preferencing one over another. I've thought of using BGP filtering and community magic to basically allow Transit AS + 1 additional AS (Transit direct customer) as specific routes, with summarization to default for the rest. I'm sure there are other thoughts that I haven't had about this as well....And before I get asked why not just run full tables, I'm looking at regional approaches to being able to use smaller, less powerful routers (or even layer3 switches) to run some areas of the network where we can benefit from summarization and full tables are really overkill.*James W. Breeden* /Managing Partner/ // *logo_transparent_background* *Arenal Group:* Arenal Consulting Group | Acilis Telecom | Pines Media PO Box 1063 | Smithville, TX 78957Email: james () arenalgroup co <mailto:james () arenalgroup co> | office 512.360.0000 | www.arenalgroup.co <http://www.arenalgroup.co/>
Current thread:
- Re: Partial vs Full tables, (continued)
- Re: Partial vs Full tables Anoop Ghanwani (Jun 08)
- Re: Partial vs Full tables Saku Ytti (Jun 08)
- Re: Partial vs Full tables Mike Hammett (Jun 06)
- Re: Partial vs Full tables Mark Tinka (Jun 09)
- Re: Partial vs Full tables Mike Hammett (Jun 05)
- Re: Partial vs Full tables Tom Beecher (Jun 05)
- Re: Partial vs Full tables William Herrin (Jun 05)
- Re: Partial vs Full tables Ryan Rawdon (Jun 05)
- Re: Partial vs Full tables Baldur Norddahl (Jun 05)
- Re: Partial vs Full tables Ryan Rawdon (Jun 06)
- Re: Partial vs Full tables Alejandro Acosta (Jun 09)
- Re: Partial vs Full tables Robert Blayzor (Jun 10)
- Re: Partial vs Full tables William Herrin (Jun 10)
- Re: Partial vs Full tables William Herrin (Jun 10)
- Re: Partial vs Full tables Brian Johnson (Jun 10)
- Re: Partial vs Full tables William Herrin (Jun 10)
- Re: Partial vs Full tables Baldur Norddahl (Jun 10)
- Re: Partial vs Full tables William Herrin (Jun 10)
- Re: Partial vs Full tables Chris Adams (Jun 10)
- Re: Partial vs Full tables Robert Blayzor (Jun 11)
- RE: Partial vs Full tables Brian Turnbow via NANOG (Jun 12)
- Re: Partial vs Full tables William Herrin (Jun 10)