HI Colby,
> PCE = Path Computing Entity … > Really ? First time I hear about such name. For me it was always Path Computation Element. And for me it was always about entity build on (to quote the charter: "but on some other path computation entity that may not be physically located on each head-end node. " Hence we need PCEP as an example. What runs on the head-end node from the moment Henk suggested it was Constrained SPF. Not PCE for itself. - - - Why am I asking ,,, Well if you would admit to run your power optimizations off the routers the discussions if we should extend link state flooding with it take a completely new light. But since you sort of confirm that you are still going to run constrained SPF on the edges flooding this extra bit of information makes sens. Modulo of course the applicable networks and applicable hardware which could benefit from it :) Cheers, R. > which could be an ingress router or off-box ‘computer’. The off-box > computer also needn’t be fully centralized. > > -- Colby > > *From: *Robert Raszuk <[email protected]> > *Date: *Tuesday, May 5, 2026 at 3:19 AM > *To: *Tony Li <[email protected]> > *Cc: *Carlos Pignataro <[email protected]>; Christian Hopps < > [email protected]>; lsr <[email protected]>; “[email protected]” < > [email protected]>; ops-ads <[email protected]>; [email protected] < > [email protected]> > *Subject: *[Green] Re: Next steps for draft-many-lsr-power-group-02 > > Hi Tony, > > > I’m not understanding what you’re requesting. draft-many-lsr-power-group > provides a basis for path computation that allows PCE implementations to > consolidate traffic, thereby idling components that can be put into > power-sleep. > > > Till this sentence I was all under the impression (as we discussed offline > with Colby) that there is no need for PCE in your solution. And that your > solution is fully distributed hence we need to extend ls flooding to > distribute the constraints around. > > Has that changed ? > > Thx, > Robert > >
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