Re: [Idr] Adoption call for - draft-dong-idr-sr-policy-nrp-02 (3/1 to 3/14)

Hi Sue and WG,

I  draw you attention that there is another document  (please see https://www.ietf.org/archive/id/draft-liu-idr-bgp-network-slicing-01.txt) also describe how to advertise slice for SR policy through BGP.

The key difference between the two proposals is the level of SR policy, Candidate Path or Segment List, that bind slice.

I think there is valid use-case that customer traffic can be balanced distributed among multiple slice, and hope to hear more discussion about the use cases in WG.

Regards,

PSF

Original

From: SusanHares <shares@ndzh.com>
To: idr@ietf.org <idr@ietf.org>;
Date: 2023年03月01日 12:49
Subject: [Idr] Adoption call for - draft-dong-idr-sr-policy-nrp-02 (3/1 to 3/14)

_______________________________________________
Idr mailing list
Idr@ietf.org
https://www.ietf.org/mailman/listinfo/idr

This begins a 2 week WG adoption call for

draft-dong-idr-sr-policy-nrp

https://datatracker.ietf.org/doc/draft-dong-idr-sr-policy-nrp/

Each of the authors should respond to this message with

an email indicating if they know of any IPR regarding this draft.

The draft specifies an extension to BGP SR policy to

Specify the NRP (network partition resources) that

Than an SR Policy candidate path is associated with.

In your discussion consider if this is a useful addition to the

SR Policy candidate path.

Cheerily, Sue

===========

Full description from the draft

  Segment Routing (SR) Policy is a set of candidate paths, each    consisting of one or more segment lists and the associated    information.  The header of a packet steered in an SR Policy is    augmented with an ordered list of segments associated with that SR    Policy.  A Network Resource Partition (NRP) is a subset of network    resources allocated in the underlay network which can be used to   support one or a group of IETF network slice services. 

   In networks where there are multiple NRPs, an SR Policy may be

   associated with a particular NRP.  The association between SR Policy

   and NRP needs to be specified, so that for service traffic which is

   steered into the SR Policy, the header of the packets can be

   augmented with the information associated with the NRP.  An SR Policy

   candidate path can be distributed using BGP SR Policy.  This document

   defines the extensions to BGP SR policy to specify the NRP which the

   SR Policy candidate path is associated with.