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Re: MPLS TE in Single Area

  • From: Aditya Kaul <aditya.kaul@HotPOP.com>
  • Date: Fri, 27 Aug 2004 20:33:41 +0530
  • Resent-Date: Fri, 27 Aug 2004 11:31:40 -0400
  • To: Otto Kreiter <Otto.Kreiter@dante.org.uk>, mpls-ops <mpls-ops@mplsrc.com>
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Would be helpfull if someone can explain below mentioned queries.

As per  draft-vasseur-ccamp-loose-path-reopt-00.txt

section5.     Interoperability
An LSR not supporting the
                       ªªERO expansion request
                                          ªª bit of the SESSION-
ATTRIBUTE object SHOULD just ignore it.
Any head-end LSR not supporting this draft receiving a Path Error
Notify message with sub-code = 6, 7 or 8 MUST just silently ignore the
Path message.
Does junos supports this draft ?

Another query regarding draft-vasseur-ccamp-inter-area-as-te (Cisco/Juniper).
Is it merged draft for both Inter-Area/AS ?
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Section4.
4.      Notion of contiguous, nested and stitched TE LSPs

A contiguous TE LSP is defined as a TE LSP spanning multiple IGP
areas/levels or ASes, which must be considered as a unique end-to-end
TE LSP. By contrast, a stitched or nested TE LSP is made of up multiple
LSP pieces within each area/AS which are either stitched or nested
together at area/AS boundaries to form an inter-area/AS TE LSP.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx

In the earlier draft
draft-ayyangar-inter-region-te
Multiple LSP pieces nested or stitched together, per-region control

draft-vasseur-inter-as-te
Contiguous LSP end-to-end, head-end control.

Is this function specific to platform or operator ?

Thanks
Aditya


At 03:49 PM 8/27/2004, Otto Kreiter wrote:
>Hello Aditya,
>
>Aditya Kaul wrote:
>
> > Right now on cisco you have to specify loosely routed ERO for each ABR.
> > On juniper,I dont think you can configure Inter-Area TE LSP.
>
>
>You can. Exactly in the same manner as on Cisco's. Personally I will not
>call this a J/C feature. It is the normal operation of RSVP with ERO.
>
>Regards,
>
>Otto
>--
>       **      Otto Kreiter     Network Engineering & Planning
>     *    *
>    *          City House           Tel: +44 1223 371300
>   *           126-130 Hills Road   Fax: +44 1223 371371
>  *            Cambridge CB21PQ     E-mail: otto.kreiter@dante.org.uk
>D A N T E     United Kingdom       WWW: http://www.dante.net
>
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