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 <
[email protected]> 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
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/
There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-many-teas-power-steering-02.html
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-many-teas-power-steering-02
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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