Re: LMP Related Questions

[Dimitri.Papadimitriou@alcatel.be]

hi adrian - two things the first to complete the below is that the link
property correlation should be done before the link is brought up and may
be done at any time a link is up and not in the verification process - note
also there is an (implicit) assumption that if the link verification
process is not used an alternative mechanism is to be provided for
associating the interface id as part of the data link subobjects to be
correlated with the link summary message

the second is can someone explain why i don't see the original mail (blank)
? is the original sender using a special font and i have to wait that
someone replies to convert it ? not the first time it happens when i
received e-mail
from korea

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> Hi, ccampers.
>
> I've some questions for the LMP implementation.
> First, I'd like to know the UDP port identifier of LMP. But, I can't find
> out the identifier.
> Is it OK as I define it randomly?

Not if you want to interoperate!

If you look at http://www.iana.org/assignments/port-numbers you will see
that IANA has
allocated port 701.

lmp             701/tcp    Link Management Protocol (LMP)
lmp             701/udp    Link Management Protocol (LMP)
#                          RFC-ietf-ccamp-lmp-10.txt


> Second, I do not know the execution order between link connectivity
> verification and link property correlation.
> Which function should be first performed? In the draft of LMP, I'm very
> confusing.

First, note that link property correlation is a core (mandatory) function,
but link
connectivity verification is an optional procedure.
Second, the link connectivity verification procedure can be run at any time
to verify the
physical connectivity.

However, if you do run the link connectivity verification procedure at
start of day in
order to determine and exchange the Interface IDs, you would be wise to run
the procedure
before link property correlation because that way you will know which links
are being
bundled or described in the link property correlation phase.

> Who help me to solve these questions?

Perhaps someone with some running code would care to comment?

Cheers,
Adrian