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Re: I-D ACTION:draft-imajuku-ml-routing-02.txt
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We have updated our routing draft attached below.
We've recognized that interface switching capability descriptor (ISCD)
being defined in routing protocols
lacks functionality in order to properly operate multilayer LSRs with
LSC+PSC, LSC+DXC+PSC, and so on.
So, we want to add definition of new interface descriptor called
"interface adaptation capability descriptor".
Background and aim of this proposal is to realize of multilayer routing
domain which tunnels any kind of LSPs using the multilayer LSR.
However, the proposed ISCD in this stage cannot properly express the LSP
in each multilayer LSR.
I think this problems is very common especially in circuit switch capable
such as LSC and DXC.
In some case, these switches can have different capability between LSP
forwarding capability and termination
capability. We already encountered this kind of problems in routing
calculation of O-LSP.
For example, a PXC-LSR can provide forwarding capability for any kind of
O-LSPs, but termination capability
depends on the adaptation functionality attached to the PXC. But, the ISCD
cannot effectively express such constraints for routing calculation.
I'm happy and appreciate if we could share the problems I mentioned, and
if you would support our proposal.
I'm very much looking forward to see you at Yokohama, Japan !
A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Multilayer routing using multilayer switch capable
Author(s) : W. Imajuku et al.
Filename : draft-imajuku-ml-routing-02.txt
Pages : 17
Date : 01-Jul-02
The integration of multilayer switching capabilities within one
box, such as the packet-switch capability (PSC) and the lambda-
switch capability (LSC) under the MPLS/Generalized-MPLS control
mechanism, paves the way for achieving network resource optimization
considering multilayer routing. This document clarifies the model of
the GMPLS-controlled integrated PSC/LSC label switch router (LSR)
and discusses the requirements of the routing extensions needed to
achieve optimized multilayer traffic engineering.
A URL for this Internet-Draft is:
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Research Engineer@NTT Network Innovation Labs.
807A, 1-1 Hikari-no-oka, Yokosuka, Kanagawa, Japan