more comments...

 >>Laurent Joncheray <lpj at merit.edu> writes:
  >* > Well this is only in the interas-out syntax where we agreed pref made 
  >* > no sense for outbound announcements. Too protocol specific. 
  >* > The "time to converge" shouldn't be taken as a proposal. 
  >* 
  >*     We agreed on as-out. Not interas-out.
  >*
>Well then fine - say why we need it. 

Tony,

Why we need it?  Think about the following example:

AS1 and AS2 interconnects at two different locations at connection point c1 and c2.
AS2 likes to have AS1 send traffic to x via c1 as primary c2 as secondary.  It can 
either grab the phone and call AS1 asking:  'please put in your interas-in statement
to accept x at c1 with prefernce 1 and c2 with prefernce 2' or just put in its
own interas-out statement using the <pref> to specify that.  Now the point of
express policy and register it is to avoid phone calles to communicate policies.
Adding metric/pref in interas-out (or as a matter of fact as-out) is a win.

In the NSFNet environment, we have many ASs interconnects with AS690 with multiple
locations and using the same AS number now.  Currently they use NCAR to express
the preference policy, it is equivenlunt to express their as-out (interas-out)
policy.

In short, we really need the metric/pref be added in at least interas-out. 

						--Jessica 



-------- Logged at  Fri May 27 10:02:28 MET DST 1994  ---------