nanog mailing list archives
Re: BGP prefix filter list
From: "Radu-Adrian Feurdean" <nanog () radu-adrian feurdean net>
Date: Fri, 17 May 2019 12:10:18 +0200
On Thu, May 16, 2019, at 16:38, Blake Hudson wrote:
offloading that responsibility onto the transit provider. IMHO, what's the point of being multi-homed if you can't make intelligent routing decisions and provide routing redundancy in the case of a transit provider outage?
Speaking of "intelligent routing", this is why doing some targeting on what you filter by some criteria other than prefix or as-path length is a good idea. Either manually every once in a while (just make sure that you at least check the situation every few weeks), or in an automated manner (better). You just need more data (usually *flow/ipfix based) in order to be able to take the good decisions. You can use traffic levels (or better - lack of traffic), traffic criticality (?!?! cirticity ?!?!) and prefix count saving as criteria. -- R-A.F.
Current thread:
- Re: BGP prefix filter list, (continued)
- Re: BGP prefix filter list Dan White (May 15)
- RE: BGP prefix filter list Phil Lavin (May 15)
- Re: BGP prefix filter list Dan White (May 15)
- RE: BGP prefix filter list Phil Lavin (May 15)
- Re: BGP prefix filter list Dan White (May 15)
- Re: BGP prefix filter list Ca By (May 15)
- Re: BGP prefix filter list Mike Hammett (May 15)
- Re: BGP prefix filter list Ca By (May 15)
- Re: BGP prefix filter list Mike Hammett (May 15)
- Re: BGP prefix filter list Blake Hudson (May 16)
- Re: BGP prefix filter list Radu-Adrian Feurdean (May 17)
- Re: BGP prefix filter list Blake Hudson (May 17)
- Re: BGP prefix filter list / BGP hijacks, different type Denys Fedoryshchenko (May 17)
- Re: BGP prefix filter list / BGP hijacks, different type Christopher Morrow (May 17)
- Re: BGP prefix filter list Radu-Adrian Feurdean (May 17)
- Re: BGP prefix filter list Blake Hudson (May 17)
- RE: BGP prefix filter list Phil Lavin (May 15)
- Re: BGP prefix filter list Baldur Norddahl (May 17)
- Re: BGP prefix filter list Blake Hudson (May 17)
- Re: BGP prefix filter list Baldur Norddahl (May 17)
- Re: BGP prefix filter list Blake Hudson (May 17)
- Re: BGP prefix filter list Baldur Norddahl (May 18)
- Re: BGP prefix filter list Dan White (May 15)