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

Acee Lindem <acee.lindem@ericsson.com> Mon, 21 October 2013 13:33 UTC

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From: Acee Lindem <acee.lindem@ericsson.com>
To: Hannes Gredler <hannes@juniper.net>
Thread-Topic: [OSPF] Review Request: New Version Notification for draft-hegde-ospf-node-admin-tag-00.txt
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Date: Mon, 21 Oct 2013 13:32:54 +0000
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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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Hannes, 

On Oct 21, 2013, at 9:26 AM, Hannes Gredler wrote:

> 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.

You don't have to - just request a separate OSPFv2 opaque LSA and IPv6 OSPFv3 LSA from IANA.
Another alternative would be to extend the RI LSA to be multi-instance and relegate the variable length tags to an instance other than instance 0. 
Acee 

> 
> 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
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> OSPF mailing list
>>> OSPF@ietf.org
>>> https://www.ietf.org/mailman/listinfo/ospf
>> 
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> 
>