splicing in draft-ietf-ccamp-gmpls-architecture-00.txt

["Torsten Mueller" <Torsten.Mueller@marconi.com>]

Hallo,

draft-ietf-ccamp-gmpls-architecture-00.txt mentions in
   9.13 Explicit Routing and Explicit Label Control

  In particular, the explicit label control in the explicit route
   allows terminating an LSP on a particular outgoing port to an egress
   node.

   This can also be used when it is desirable to "splice" two LSPs
   together, i.e. where the tail of the first LSP would be "spliced"
   into the head of the second LSP.

Does this mean, that it is possible to splice different types of LSP into
each other?
E.g., could I terminate a PSC LSP, then use a SDH LSP and finally, again,
a PSC LSP
instead of using the hierarchical approach?
If not, what is the intent of "splicing"?

Thanks,
Torsten