Russ:

>>> 2. Backup connections should not be advertised unless they are used.
>> 
>> nope.  i did not say that.  i said that backup paths are usualy not
>> visible in analyses of public routing data.  this is due to bgp's best
>> path choices not propagating the less-preffered paths, and preserves
>> today's properties.  bgp is one of the world's best information hiding
>> protocols :).
> 
> So you're saying that backup paths should be able to be hidden until
> they are actually used? Can you put together a list of the specific
> information you think needs to be hidden, and back it up with use cases?

No.  I hear that it is not a requirement to disclose them ahead of time.  The 
ASes along the path just need to be able to determine that it is valid before 
it is accepted.

Russ
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