Re: [OSPF] Review Request: New Version Notification for draft-hegde-ospf-node-admin-tag-00.txt

Hannes Gredler <hannes@juniper.net> Mon, 21 October 2013 13:27 UTC

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From: Hannes Gredler <hannes@juniper.net>
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Date: Mon, 21 Oct 2013 15:26:10 +0200
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To: Acee Lindem <acee.lindem@ericsson.com>
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Cc: OSPF List <ospf@ietf.org>, Rob Shakir <rob.shakir@bt.com>, Harish Raghuveer <hraghuveer@juniper.net>
Subject: Re: [OSPF] Review Request: New Version Notification for draft-hegde-ospf-node-admin-tag-00.txt
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acee,

why should we give an upper boundary on things which
- might be subject to change and
- which have a historic track record of being underestimated.

the 'per-link' admin-groups serve as a good example here:
initially conceived as "you won't ever need more than 32" we have
now arrived at a variable length (unbounded) extension.

http://tools.ietf.org/html/draft-osborne-mpls-extended-admin-groups-00

for a humorous take to it, have a look at
http://tools.ietf.org/html/rfc1925
rule (9) and (10)

/hannes

On Oct 21, 2013, at 3:12 PM, Acee Lindem wrote:

> Hi Shraddha, 
> Since the size of the tag data is unbounded, could you either put it in a separate OSPFv2 opaque LSA and OSPFv3 LSA or limit the size to some maximum number of tags, e.g., 16?  
> Thanks,
> Acee 
> On Oct 21, 2013, at 7:05 AM, Shraddha Hegde wrote:
> 
>> Hi All,
>> 
>> We have posted a draft on " Advertising per-node administrative tags in OSPF" and would like to hear your views on it. Please feel free to raise any suggestion/comment on the content.
>> 
>> Rgds
>> Shraddha
>> 
>> -----Original Message-----
>> From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org] 
>> Sent: Monday, October 21, 2013 4:24 PM
>> To: Harish Raghuveer; Shraddha Hegde; British Telecom; Hannes Gredler; Rob Shakir
>> Subject: New Version Notification for draft-hegde-ospf-node-admin-tag-00.txt
>> 
>> 
>> A new version of I-D, draft-hegde-ospf-node-admin-tag-00.txt
>> has been successfully submitted by Shraddha Hegde and posted to the IETF repository.
>> 
>> Filename:	 draft-hegde-ospf-node-admin-tag
>> Revision:	 00
>> Title:		 Advertising per-node administrative tags in OSPF
>> Creation date:	 2013-10-21
>> Group:		 Individual Submission
>> Number of pages: 6
>> URL:             http://www.ietf.org/internet-drafts/draft-hegde-ospf-node-admin-tag-00.txt
>> Status:          http://datatracker.ietf.org/doc/draft-hegde-ospf-node-admin-tag
>> Htmlized:        http://tools.ietf.org/html/draft-hegde-ospf-node-admin-tag-00
>> 
>> 
>> Abstract:
>>  This document describes an extension to OSPF protocol [RFC2328] to
>>  add an optional operational capability, that allows tagging and
>>  grouping of the nodes in an OSPF domain.  This allows
>>  simplification,ease of management and control over route and path
>>  selection based on configured policies.
>> 
>>  This document describes the protocol extensions to disseminate per-
>>  node admin-tags to the OSPFv2 and OSPFv3 protocols.
>> 
>> 
>> 
>> 
>> 
>> Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org.
>> 
>> The IETF Secretariat
>> 
>> 
>> 
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