Re: [Lsr] Working Group Last Call for "OSPF Link Traffic Engineering (TE) Attribute Reuse" - draft-ietf-ospf-te-link-attr-reuse-07.txt

Olivier,

+1 Peter.
There’s has been significant amount of discussions on the topic some time ago, mostly with Chris Bowers. Please take a look, should provide more context.

Regards,
Jeff

> On Apr 12, 2019, at 15:27, Peter Psenak <ppsenak@cisco.com> wrote:
> 
> Hi Oliver,
> 
> There are two major purposes served by the drafts:
> 
> 1)Support of incongruent topologies for different applications
> 
> 2)Advertisement of application specific values even on links that are in
> use by multiple applications
> 
> These issues are clearly articulated in the Introductions of both
> drafts. LSR WG acknowledged them a while back and decided to address
> them.
> 
> Issue #1 has already had a significant impact on early deployments of
> SRTE in networks where there is partial deployment of SR in the presence
> of RSVP-TE.
> 
> Issue #2 will be seen in deployments where Flex-Algo and SRTE (or
> RSVP-TE) are also present. Early implementers of Flex-Algo can attest to
> this.
> 
> It is simply not possible to address these issues with the existing
> single set of application independent advertisements.
> 
> The solutions we provide in both drafts allow to share the link
> attributes between application as well as keep them separate if that is
> what is required.
> 
> thanks,
> Peter
> 
>> On 11/04/2019 19:43 , olivier.dugeon@orange.com wrote:
>> Hi,
>> 
>> I'm not in favour of this draft.
>> 
>> As already mention, I don't see the interest to duplicate TE attributes
>> in new Extended Link Opaque LSA. For me, it is only a matter of
>> implementation to look at various place in the OSPF TE Database to take
>> Traffic Engineering information.
>> 
>> From an operator perspective, it is already hard to manage TE attribute
>> and I'm pretty sure that we could not ask network management team to
>> maintain 2 systems for certainly a long period of time as many TE
>> attributes remains in the standard Opaque LSA Traffic Engineering.
>> 
>> Regards
>> 
>> Olivier
>> 
>> 
>>> Le 11/04/2019 à 18:11, Acee Lindem (acee) a écrit :
>>> 
>>> LSR Working Group,
>>> 
>>> 
>>> 
>>> This begins a two week  WG last call for the subject document. Please
>>> enter your support or objection to the document before 12:00 AM (EDT)
>>> on Friday, April 27^th , 2019.
>>> 
>>> 
>>> 
>>> Thanks,
>>> Acee
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Lsr mailing list
>>> Lsr@ietf.org
>>> https://www.ietf.org/mailman/listinfo/lsr
>> 
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