[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
draft-ietf-ccamp-mpls-gmple-framework updated after IESG review
Hi,
Changes are below (as approved by the IESG).
Thanks,
Adrian
==
Section 4.3
Replace final paragraph
OLD
Interoperability concerns, though, are exacerbated by this migration
model, unless all LSRs in the network are updated simultaneously and
there is a clear understanding of which subset of features are to be
included in the hybrid LSRs. Interworking between a hybrid LSR and an
unchanged MPLS LSR would put the hybrid LSR in the role of a GMPLS
LSR as described in the previous sections and puts the unchanged LSR
in the role of an MPLS LSR. The potential for different hybrids
within the network will complicate matters considerably.
NEW
Interoperability concerns though are exacerbated by this migration
model, unless all LSRs in the network are updated simultaneously and
there is a clear understanding of which subset of features are to be
included in the hybrid LSRs. Interworking between a hybrid LSR and an
unchanged MPLS LSR would put the hybrid LSR in the role of a GMPLS
LSR as described in the previous sections and puts the unchanged LSR
in the role of an MPLS LSR. The potential for different hybrids
within the network will complicate matters considerably. This model
is, therefore, only appropriate for use when the set of new features
to be deployed is well known and limited, and where there is a clear
understanding of and agreement on this set of features by the network
operators of the ISP(s) involved as well as all vendors whose
equipment will be involved in the migration.
===
Section 5
Update 4th paragraph
OLD
The second strategy for PSC and non-PSC networks is to migrate from
the PSC network to GMPLS, first, and then enable GMPLS within the
non-PSC network. The PSC network is migrated as described before, and
when the entire PSC network is completely converted to GMPLS, GMPLS-
based non-PSC devices and networks may be introduced without any
issues of interworking between MPLS and GMPLS.
NEW
The second strategy is to migrate the PSC network to GMPLS first, and
then enable GMPLS within the non-PSC network. The PSC network is
migrated as described before, and when the entire PSC network is
completely converted to GMPLS, GMPLS-based non-PSC devices and
networks may be introduced without any issues of interworking between
MPLS and GMPLS.
===
Section 5.1.4
New section
ADD
5.1.4. Path Computation Element
The Path Computation Element (PCE) [RFC4655] may provide an
additional tool to aid MPLS to GMPLS migration. If a layered network
approach (Section 5.1.1) is used, PCEs may be used to facilitate the
computation of paths for LSPs in the different layers
[PCE-INTER-LAYER].
===
Section 12.2
Add new references
ADD
[RFC4655] A. Farrel, JP. Vasseur and J. Ash, "A Path Computation
Element (PCE)-Based Architecture", RFC 4655, August 2006.
[PCE-INTER-LAYER] Oki, E., Le Roux , J-L,. and Farrel, A., "Framework
for PCE-Based Inter-Layer MPLS and GMPLS Traffic
Engineering," draft-ietf-pce-inter-layer-frwk, work in
progress.
===