I don't really see what's wrong with what I proposed:
"When PIM-SM is used in ASM mode, the usual means of discovering
active sources is to join a sparse mode shared tree. However,
this
document does not provide any method of transporting a sparse
mode
shared tree across an MPLS network. To apply the technique of
this
document to PIM-SM in ASM mode, there must be some other means
of
discovering the active sources. One possible means is the use
of
MSDP, but specification of such means is outside the scope of
this
document".
What's wrong with what you proposed is that it still refuses to
explicitly spell out that supporting the ASM service model over an
MPLS network is outside the scope of this document. In other words,
what is missing in what you proposed is the following sentence:
Supporting the ASM service model over an MPLS network
is outside the scope of this document.
