In LISP, instance-ID 0 is kinda an unwritten rule used for this purpose.

Dino

On Dec 13, 2013, at 2:37 AM, Yves Hertoghs (yhertogh) <[email protected]> 
wrote:

> Adding the authors
> 
> Yves
> 
> On 10/12/13 01:20, "Nischal Sheth" <[email protected]> wrote:
> 
>> 
>> Hi Authors,
>> 
>> A couple of comments/questions on the draft:
>> 
>> a) It would be useful to have the ability to specify that the forwarding
>> context
>> for the inner payload is the same as that for the outer header i.e. the
>> VNI is
>> a don't care.  This could be achieved by reserving a VNI value, say
>> 0xFFFFFF
>> or 0, or by using an additional bit from the flags field.
>> 
>> b) The current version says that determining capabilities is out of
>> scope. Are
>> you planning to allocate a Tunnel Type code point in the BGP encapsulation
>> extended community in later version or via a separate document?
>> 
>> Thanks,
>> Nischal
>> 
>> 
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