The IETF has a very long history of pushing back on multiple redundant
solutions to the same problem.
There are a great many cases of ADs, working group chairs, and others pushing
quite hard
to prevent multiple solutions when one would work fine.
I haven't seen this in the OAM work so far.
PWE's VCCV has 3 or 4 different channels (code named CC types)
and 3 or 4 different OAM mechanisms (code named CV types).
And each of these has several variants and most have several possible
encapsulations.
Similarly in the MPLS-TP work we have a large number of options.
For example, draft-ietf-mpls-tp-on-demand-cv has 3 different encapsulations
(LSP-ping UDP/IP packet in MPLS, LSP-ping packet in UDP/IP in GACh,
and "raw" LSP-ping packet in GACh with a new channel type).
Why is it that no-one seems to object to a plethora of possible options for
anything
except the inner-most payload format?
Y(J)S
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