[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

last call comment on draft-ietf-ccamp-gmpls-sonet-sdh-00.txt

The following paragraph is from section 3 of
draft-ietf-ccamp-gmpls-sonet-sdh-00.txt.

  When hierarchical SDH/SONET LSPs are used, an LSP with a given
   bandwidth can be used to tunnel lower order LSPs.  The higher
   order SDH/SONET LSP behaves as a virtual link with a given
   bandwidth (e.g. VC-3), it may also be used as a Forwarding
   Adjacency. A lower order SDH/SONET LSP can be established through
   that higher order LSP. Since a label is local to a (virtual) link,
   the highest part of that label is non-significant and is set to
   zero.

The LSP Hierarchy draft introduces Link Mux Capability.  There is a value
defined for TDM Switch Capable.  In order to support the hierarchy in the
above paragraph, TDM Switch Capable would need to be split into multiple
values, one for each level of the SDH/SONET multiplexing structure.

What do you think?

Alan