Hi,On Aug 15, 2006, at 12:01 PM, xiahongmiao wrote: Hi, JP, In your draft draft-vasseur-ccamp-ce-ce-te-01, CE-to-CE LSP compute as follows: > Step 1: The ingress CE (e.g. CE1) selects a PCE (say PE1). > Step 2: Upon receiving the PCReq message from CE1, PE1 (acting as a
> PCE) determines the set S of PEs with a PE-CE link to the destination
> CE (e.g. CE2). The following VSPT is then computed: > VSPT computed by the ingress PE acting as a PCE > CE2
> / \
> PE1 PE2 > Step 3: The shortest constrained path is then returned to CE1 in the
> form of a PCRep message (with loose hop). Here, I have a question and I think the PE should know just membership of PE-CE link, instead of PE-CE link TE attribute. Ingress PE looks for egress PE with this information. Could you tell me the truth?
The ingress PE computes the shortest constrained TE LSP from CE to CE, thus the PE-CE TE Link attribute is required, not just the MPLS VPN membership.
Thanks.
JP. Thanks, xiahongmiao _______________________________________________ Pce mailing list
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