> On 20 Apr 2015, at 17:34, Dino Farinacci <[email protected]> wrote:
> 
> 
>> Hi,
>> 
>>>>      specifications.  The existence of a LISP specific EID block
>>>>      would allow to avoid scenarios with excessive overhead, where
>>>>      the destination is a LISP EID and where (while the mapping is
>>>>      looked up) packets are forwarded over paths like
>>>>      Source->ITR->PETR->PITR->ETR->Destination, which may show an
>>> 
>>> This is totally wrong. PITR, by definition, are not decapsulators.
>> 
>> The example is correct, and the PITR in the example is an encapsulator. The 
>> ITR->PETR bit is encapsulated. The PETR->PITR bit is unencapsulated 
>> (probably BGP routed) internet traffic, and the PITR->ETR bit is 
>> encapsulated again.
> 
> Then the example is not coded properly. It nees to be more specific for 
> accuracy:
> 
> source (native forward) -> ITR (encap) -> PETR (native forward) -> PITR 
> (encap) -> ETR (native forward) -> dest

I would suggest:

source -> ITR (encap) -> PETR (recap) -> (native forward) -> PITR (encap) -> 
ETR (decap) -> dest

Because of the current status of the document (and as co-author) this can be 
done during the IESG review or right before forwarding it to the RFC queue if 
no other changes are required.

ciao

L.


> 
> Dino
> 
>> 
>> Cheers!
>> Sander
>> 
> 
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