Re: [Idr] [Fwd: I-D Action:draft-chen-rfc4893bis-02.txt]

[Andy Davidson <andy at nosignal.org>]

On 10 Mar 2009, at 14:28, David Freedman wrote:

> I'm still of the opinion that we should discard/withdraw the update  
> as appropriate, I'm still not comfortable about discarding  
> attributes like this, especially where we see a mix of people both  
> doing and not doing this during transition to the (eventual)  
> standard.  Is there nobody else who thinks this is a bad thing (tm) ?

In my opinion, it is much more preferable to drop a prefix than to  
have to deal with learning the prefix in several differently broken  
ways.  Partial and unpredictable routing for the originator will be  
harder to debug than what seems to be no connectivity.  Please, let's  
adopt Rob's original, simple, clean suggestion :

 - discard new prefixes which have broken AS4_PATH properties.
 - treat existing prefixes which subsequently break as a withdraw.
 - Log in any case.

Kind regards,
Andy Davidson