[Lsr] Re: [Teas] Fw: I-D Action: draft-many-teas-power-steering-02.txt

[Tony Li <[e-mail]>]

Hi John,

I’m quite sure he did.  Which part did you not understand?

Tony


> On Sep 10, 2026, at 7:05 AM, John Drake <je_drake=[e-mail]> wrote:
> 
> Hi,
> 
> I'm not sure you answered my questions.
> 
> Thanks,
> 
> John
> 
> On Thursday, September 10, 2026 at 05:37:26 AM PDT, Barth, Colby <jonathan.barth=[e-mail]> wrote:
> 
> 
> Inline <cB>
> 
> -- Colby
> 
> 
> From: John Drake <je_drake=[e-mail]>
> Date: Wednesday, September 9, 2026 at 3:24 PM
> To: TEAS WG <[e-mail]>; lsr <[e-mail]>; Bonica, Ron <ronald.bonica=[e-mail]>
> Subject: [Teas] Re: [Lsr] Fw: I-D Action: draft-many-teas-power-steering-02.txt
> 
> Ron,
> 
> I'm sure I missed it so I apologize in advance, but how do you deal with a link which should be powered off but which can't be due to the presence on LSPs which should be re-routed, or a link which appears to be ready to power off but which shouldn't be because the LSPs on it are crucial and which can't be rerouted?
> 
> <cb> If a link is both power-save-capable and there are currently no LSPs traversing it, then it is a candidate to be put to power-sleep.  A node may make a local decision to put a "link to sleep" in coordination with the node on the other end.  This is a function of the sleep management component that Ron has described and is beyond the scope of this document. 
> 
> Or, how do you power on a link in anticipation of a huge traffic surge which should be non-disruptively handled?
> 
> <cb> Waking up a link can be triggered by an ingress node if it fails to find a path for a new bandwidth request.
> 
> —Colby
> 
> Thanks,
> 
> John
> 
> On Wednesday, September 9, 2026 at 06:58:41 AM PDT, Bonica, Ron <ronald.bonica=[e-mail]> wrote:
> 
> 
> Folks,
> 
> Many of the comments regarding draft-many-lsr-power-groups are resolved in this teas document. So, I am informing LSR and TEAS that this new version has been posted.
> 
>                                                                                                           Ron
> 
> 
> From: [e-mail] <[e-mail]>
> Sent: Wednesday, September 9, 2026 9:51 AM
> To: [e-mail] <[e-mail]>
> Cc: [e-mail] <[e-mail]>
> Subject: [Teas] I-D Action: draft-many-teas-power-steering-02.txt
> 
> Internet-Draft draft-many-teas-power-steering-02.txt is now available. It is a
> work item of the Traffic Engineering Architecture and Signaling (TEAS) WG of
> the IETF.
> 
>    Title:   A Power Conserving Path Placement Strategy (PCPPS)
>    Authors: Colby Barth
>             Tony Li
>             Vishnu Pavan Beeram
>             Ron Bonica
>    Name:    draft-many-teas-power-steering-02.txt
>    Pages:   13
>    Dates:   2026-09-09
> 
> Abstract:
> 
>    This document introduces a Power Conserving Path Placement Strategy
>    (PCPPS).  During periods of low demand, PCPPS concentrates traffic
>    onto a small set of network resources.  This causes other network
>    resources to become idle or nearly idle.  When demand increases,
>    PCPPS redistributes traffic as required.
> 
> The IETF datatracker status page for this Internet-Draft is:
> https://datatracker.ietf.org/doc/draft-many-teas-power-steering/ <https://urldefense.com/v3/__https://datatracker.ietf.org/doc/draft-many-teas-power-steering/__;!!NpxR!mw3pWRU0THOTHq_Gm0h_fyVEWfVEAVaG5R7PLc0rSZikxQ701T8gpkdSQ2MgNEz7I4McJgECsRbSI3tt35852B57dzY9sVCTXQ$>
> 
> There is also an HTML version available at:
> https://www.ietf.org/archive/id/draft-many-teas-power-steering-02.html <https://urldefense.com/v3/__https://www.ietf.org/archive/id/draft-many-teas-power-steering-02.html__;!!NpxR!mw3pWRU0THOTHq_Gm0h_fyVEWfVEAVaG5R7PLc0rSZikxQ701T8gpkdSQ2MgNEz7I4McJgECsRbSI3tt35852B57dzafLYY_Kw$>
> 
> A diff from the previous version is available at:
> https://author-tools.ietf.org/iddiff?url2=draft-many-teas-power-steering-02 <https://urldefense.com/v3/__https://author-tools.ietf.org/iddiff?url2=draft-many-teas-power-steering-02__;!!NpxR!mw3pWRU0THOTHq_Gm0h_fyVEWfVEAVaG5R7PLc0rSZikxQ701T8gpkdSQ2MgNEz7I4McJgECsRbSI3tt35852B57dzam9GzmKg$>
> 
> Internet-Drafts are also available by rsync at:
> rsync.ietf.org::internet-drafts
> 
> 
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