[Lsr] I-D Action: draft-ietf-lsr-ospf-admin-tags-00.txt

[internet-drafts]

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Link State Routing WG of the IETF.

Title   : Extensions to OSPF for Advertising Prefix 
Administrative Tags
Authors : Acee Lindem
  Peter Psenak
Filename: draft-ietf-lsr-ospf-admin-tags-00.txt
Pages   : 9
Date: 2021-01-20

Abstract:
   It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be
   able to associate tags with prefixes.  Previously, OSPFv2 and OSPFv3
   were relegated to a single tag for AS External and Not-So-Stubby-Area
   (NSSA) prefixes.  With the flexible encodings provided by OSPFv2
   Prefix/Link Attribute Advertisement and OSPFv3 Extended LSAs,
   multiple administrative tags may advertised for all types of
   prefixes.  These administrative tags can be used for many
   applications including route redistribution policy, selective prefix
   prioritization, selective IP Fast-ReRoute (IPFRR) prefix protection,
   and many others.

   The ISIS protocol supports a similar mechanism that is described in
   RFC 5130.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-lsr-ospf-admin-tags/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-lsr-ospf-admin-tags-00
https://datatracker.ietf.org/doc/html/draft-ietf-lsr-ospf-admin-tags-00


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Re: [Lsr] WG adoption call for draft-acee-lsr-ospf-admin-tags-07

[Christian Hopps]

The document is adopted, please republish as draft-ietf-lsr-ospf-admin-tags-00.

Thanks,
Chris.

> On Jan 5, 2021, at 4:17 AM, Christian Hopps  wrote:
> 
> Signed PGP part
> This begins a 2 week WG adoption call for the following draft:
> 
>  https://datatracker.ietf.org/doc/draft-acee-lsr-ospf-admin-tags/
> 
> Please indicate your support or objection by January 19th, 2021.
> 
> Authors, please respond to the list indicating whether you are aware of any 
> IPR that applies to this draft.
> 
> Thanks,
> Chris.
> 
> 



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Re: [Lsr] WG adoption call for draft-acee-lsr-ospf-admin-tags-07

[Shraddha Hegde]

WG,

Its useful to have admin tag support for prefixes in OSPF.
I support the WG adoption.

I have below comments on the document.


  1.  I suggest to add subsections in the section 4 protocol operations to 
separately address sender side and receiver side protocol operations
  2.  Sender side need to talk about below cases
 *   Same admin tag should not be encoded multiple times
 *   For each Prefix TLV, only one admin tag sub-TLV should be included

(I don't see the need to support multiple admin tag sub-TLV in same prefix TLV)
 Receiver side

  1.  If same tag appears multiple times in the admin tag sub-TLV , the first 
one MUST be  considered and others ignored
  2.  If there are more than one admin tag sub-TLVs in the ospfv2/ospfv3  
prefix TLV only first one MUST be processed and others ignored
  3.  When both admin tag sub-TLV and existing tag in OSPFv2 and OSPFv3 
AS-External-LSA and NSSA-LSA are received, the route should consider a union of 
all these tags.


  1.  Section 6 IANA

Change to

TBD - 32-bit Administrative Tag sub-TLV

  1.  Need to have some explicit statements on Route calculation.

Change in admin tag sub_TLV should at minimum trigger partial route calculation.



Rgds

Shraddha



Juniper Business Use Only
From: Lsr  On Behalf Of Jeff Tantsura
Sent: Saturday, January 9, 2021 6:03 AM
To: lsr@ietf.org; Christian Hopps 
Cc: lsr-cha...@ietf.org
Subject: Re: [Lsr] WG adoption call for draft-acee-lsr-ospf-admin-tags-07

[External Email. Be cautious of content]

yes/support

Cheers,
Jeff
On Jan 5, 2021, 1:17 AM -0800, Christian Hopps 
mailto:cho...@chopps.org>>, wrote:
This begins a 2 week WG adoption call for the following draft:

https://datatracker.ietf.org/doc/draft-acee-lsr-ospf-admin-tags/

Please indicate your support or objection by January 19th, 2021.

Authors, please respond to the list indicating whether you are aware of any IPR 
that applies to this draft.

Thanks,
Chris.

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