I agree with many of the comments that others have raised on this
thread. Just a couple of things to add that I don't recall seeing
mentioned.
An OAM protocol is run in the context of a Maintenance Domain,
consisting of two or more nodes that run the OAM protocol, referred
to as Maintenance Points (MP).
This defintion could be better. I assume an MD is really more like a
"region", that is a collection of nodes within which (or across which)
some OAM function is run. You might run, e.g., a ping. While that ping
may be between to MPs, it also involves other nodes (MIs). But MIs seem
to be excluded per the above.
o Continuity Checking (CC):
Used for verifying the liveness of a connection between two MPs.
What is "liveness" and what is "connection"? Please define these
terms or point to the defintions in other documents. (I have looked
and have not found a precise definition.)
Note: later in document:
Continuity checks are used to verify the liveness of a connection or
a path between two MPs, and are typically sent proactively, though
they can be invoked on-demand as well.
Here "path" and "connection" are used interchangably.
o Connectivity Verification (CV):
Allows an MP to check whether it is connected to a peer MP, and to
verify that messages from the peer MP are received through the
expected path.
what is "connected to a peer"? Does that mean "there is a working
path?" Or something else?
o Path Discovery / Fault Localization:
An MP uses this mechanism to trace the route to a peer MP, i.e.,
s/the route/the path/ ???
to identify the nodes along the path to the peer MP. When a
connection fails, this mechanism also allows the MP to detect the
location of the failure.
o Performance Monitoring:
Consists of 3 main functions
o Loss Measurement (LM) - monitors the packet loss rate of a
connection.
what is "connection" in the context of technologies like TRILL (or IP
for that matter)?, which do hop-by-hop forwarding and/or may do load
balancing via ECMP?
o "Ping" mode: In this mode LSP ping is used for end-to-end
connectivity verification between two LERs.
What's an LER?
Thomas