Hi Nic,

 

Just to be sure we understand, can you please confirm that the following
definition corresponds to what you name “S2L sub-path diversity”:

 

For each leaf Ln the path from S to Ln in the primary P2MP LSP is Link (or
node or SRLG) diverse with the S to Ln path in the secondary P2MP LSP.

 

If this is correct I also think this is a good suggestion that would be
easily fulfilled by defining a new bit in the SVEC object in next draft
version.

 

BR

Fabien

 

 

  _____  

De : Nic Neate [mailto:[EMAIL PROTECTED] 
Envoyé : mercredi 19 novembre 2008 21:29
À : [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc : [EMAIL PROTECTED]; [EMAIL PROTECTED];
[EMAIL PROTECTED]; [EMAIL PROTECTED];
[EMAIL PROTECTED]; [email protected]
Objet : Comment on draft-ietf-pce-pcep-p2mp-extensions

 

Hi,

 

I have a suggestion for a small extension to the PCEP P2MP draft.

 

I believe the base PCEP specification currently has three options for
calculating diverse protection paths: link diverse, node diverse and SRLG
diverse (draft-ietf-pce-pcep section 7.13.2).

 

In P2MP, S2L sub-path diverse is another important case.  I think it would
be good to allow the PCC to request computation of S2L sub-path diverse
protection paths.

 

This is useful when doing 1+1 protection in a ring topology, for example.

 

Nic

 

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