nanog mailing list archives

Re: Level 3's IRR Database


From: Randy Bush <randy () psg com>
Date: Mon, 31 Jan 2011 16:18:06 +0900

Based on this draft the recommended preference order is:

1) Validation ok
2) not found
3) Validation nok

Suppose an operator would use local-pref to achieve this.
This intention (preferring validated routes) will break, when there's a 
more specific announcement that doesn't validate.
For example the youtube incident would not have been stopped by doing this.

i do not understand your logic.

let's try to show the case

   666.42.0.0/16 has a roa for as 777
   666.42.1.0/24 has a roa for as 888

an announcement comes for 666.42.1.0/24 originating from as 999.  are
you implying that it should be marked valid?  i sure don't want it to.

an announcement for 666.42.0.0/16 from as 777 would still be valid.

so i am not sure what your point is.  please clarify with a concrete
example.

randy


Current thread: