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List: mpls
Subject: [mpls] Last Call: <draft-ietf-mpls-rsvp-shared-labels-06.txt> (Signaling RSVP-TE tunnels on a shared
From: The IESG <iesg-secretary () ietf ! org>
Date: 2018-11-27 22:43:33
Message-ID: 154335861317.11923.17567026374925740508.idtracker () ietfa ! amsl ! com
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The IESG has received a request from the Multiprotocol Label Switching WG
(mpls) to consider the following document: - 'Signaling RSVP-TE tunnels on a
shared MPLS forwarding plane'
<draft-ietf-mpls-rsvp-shared-labels-06.txt> as Proposed Standard
The IESG plans to make a decision in the next few weeks, and solicits final
comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2018-12-11. Exceptionally, comments may be
sent to iesg@ietf.org instead. In either case, please retain the beginning of
the Subject line to allow automated sorting.
Abstract
As the scale of MPLS RSVP-TE networks has grown, so the number of
Label Switched Paths (LSPs) supported by individual network elements
has increased. Various implementation recommendations have been
proposed to manage the resulting increase in control plane state.
However, those changes have had no effect on the number of labels
that a transit Label Switching Router (LSR) has to support in the
forwarding plane. That number is governed by the number of LSPs
transiting or terminated at the LSR and is directly related to the
total LSP state in the control plane.
This document defines a mechanism to prevent the maximum size of the
label space limit on an LSR from being a constraint to control plane
scaling on that node. It introduces the notion of pre-installed 'per
Traffic Engineering (TE) link labels' that can be shared by MPLS
RSVP-TE LSPs that traverse these TE links. This approach
significantly reduces the forwarding plane state required to support
a large number of LSPs. This couples the feature benefits of the
RSVP-TE control plane with the simplicity of the Segment Routing MPLS
forwarding plane.
The file can be obtained via
https://datatracker.ietf.org/doc/draft-ietf-mpls-rsvp-shared-labels/
IESG discussion can be tracked via
https://datatracker.ietf.org/doc/draft-ietf-mpls-rsvp-shared-labels/ballot/
The following IPR Declarations may be related to this I-D:
https://datatracker.ietf.org/ipr/2976/
https://datatracker.ietf.org/ipr/3265/
https://datatracker.ietf.org/ipr/3266/
https://datatracker.ietf.org/ipr/3036/
https://datatracker.ietf.org/ipr/2997/
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