Comp 343/443-001 Week 9 notes

Tuesday, Nov 2

It looks like Facebook's outage was triggered by their withdrawing their routes to the AS containing all their DNS servers.

Cloudflare blog: blog.cloudflare.com/october-2021-facebook-outage

Geoff Huston blog: www.potaroo.net/ispcol/2021-10/nofacebook.html

Is a small DNS timeout actually a good idea?

Separation of control and traffic


Transport

TCP

TCP Reno