Ah, that is an interesting and valid point, Nic.
And I think one might also consider "directional diversity" for your ring
example.
A
----- Original Message -----
From: "Nic Neate" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>; <[email protected]>;
<[EMAIL PROTECTED]>
Sent: Wednesday, November 19, 2008 8:28 PM
Subject: [Pce] 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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