Re: [Pce] Urgent issue with draft-ietf-pce-stateful-pce : PCE advising PCC about no path

[Robert Varga <[e-mail]>]

On 10/03/2016 04:30 PM, Dhruv Dhody wrote:
> (1) Allow Empty ERO to mean no path.
> 
> Let it be valid in all messages to mean that no intended path exists for
> this LSP.
> 
> As per -16,
> 
> - empty ERO is added in the end of synchronization marker (PCRpt). 
> 
> - The ERO may be empty if the PCE does not have a path for a delegated LSP.
> 
>  
> 
> We can add text in section 6.2 to say something like –
> 
>  
> 
> The ERO may be empty if the PCE does not have an intended path for the
> delegated LSP. 
> 
> If the local policy allows it, the PCC SHOULD signal the tear down of
> the LSP. At 
> 
> this time, PCC MAY also revoke delegation and use a locally computed
> path instead. 
> 
>  
> 
> To me this is more logical and in spirit with the rest of the document,
> also would require least amount of changes in existing implementations.

+1

Thanks,
Robert