One question about the new procedure with introduced couple of weeks ago about 
We are stating that the PCReq/PCRep is required  before delegation which is 
fine, but what happens if PCE is answering NO-PATH in the PCReq, does it 
prevent delegation ?
There is an ambiguous sentence :
"When the LSP is delegated after its setup,..."

Which could make thing that a valid path and a signaled LSP is required before 
delegation can occur, but I'm not sure that this is really necessary.
If PCE has no path at the moment of the request, PCC can still delegate the 
path and PCE will provide a valid path through PCUpdate as soon as the topology 
allows to find a suitable path. This would be faster than retrying PCReq in a 
polling fashion.


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Stephane Litkowski
Network Architect
Orange Expert Future Networks
phone: +33 2 23 28 49 83 
mobile: +33 6 37 86 97 52 


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