nanog mailing list archives
Re: [c-nsp] DNS amplification
From: Joe Abley <jabley () hopcount ca>
Date: Mon, 18 Mar 2013 10:54:37 -0400
On 2013-03-18, at 08:53, Arturo Servin <arturo.servin () gmail com> wrote:
And about the routing table size, it is not multihomed sites the offenders, it is large ISPs fragmenting because of traffic engineering or because lack of BGP knowledge.
The usual concern with multi-homed end sites is that end sites with IPv4 PA addresses assigned from provider X who wish to multi-home with provider Y wind up adding at least two entries to the global table, a more specific route to each of X and Y (which X will need to leak beneath the covering supernet if it wants to deliver the customer any traffic). I don't know of any recent analysis which differentiates between this multi-homing pressure on the global table vs. inter-domain traffic engineering or gratuitous deaggregation, but it's fair to say I have not been looking. Joe
Current thread:
- Re: Is multihoming hard? [was: DNS amplification], (continued)
- Re: Is multihoming hard? [was: DNS amplification] Owen DeLong (Mar 20)
- Re: Is multihoming hard? [was: DNS amplification] Jimmy Hess (Mar 22)
- Re: Is multihoming hard? [was: DNS amplification] William Herrin (Mar 20)
- Re: Is multihoming hard? [was: DNS amplification] Brielle Bruns (Mar 20)
- Re: Is multihoming hard? [was: DNS amplification] Andrew D Kirch (Mar 20)
- Re: [c-nsp] DNS amplification David Conrad (Mar 20)
- Re: [c-nsp] DNS amplification Sander Steffann (Mar 18)
- Re: [c-nsp] DNS amplification Masataka Ohta (Mar 18)
- Re: [c-nsp] DNS amplification Arturo Servin (Mar 18)
- Re: [c-nsp] DNS amplification Arturo Servin (Mar 18)
- Re: [c-nsp] DNS amplification Joe Abley (Mar 18)
- Re: [c-nsp] DNS amplification Masataka Ohta (Mar 18)
- Re: [c-nsp] DNS amplification Arturo Servin (Mar 18)