On Thu, Aug 12, 2021 at 12:43 PM Hank Nussbacher <hank@interall.co.il> wrote:
On 12/08/2021 17:59, William Herrin wrote:
If you prune the routes from the Routing Information Base instead, for any widely accepted size (i.e. /24 or shorter netmask) you break the Internet.
How does this break the Internet? I would think it would just result in sub-optimal routing (provided there is a covering larger prefix) but everything should continue to work. Clue me in, please.
Hi Hank, I think you're right, it could result in sub-optimal routing and in particular, in your AS not being used for these subprefixes (the traffic will go instead to a competing provider who sent the subprefix), hence, as you said, sub-optimal routing. I think some people (maybe Bill included) may consider the resulting harm to routing to be sufficiently severe to consider this `breaking'. It becomes a judgement call, I guess. Cheers, Amir
-Hank