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Re: Question on LMP Adjacency
Hi,
I *think* what you are saying is that in the
control plane the physical connectivity is
node#1----node#2----node#3
but in the data plane the TE connectivity
is
node#1----node#2
node#3
|
|
---------------------
Note that these are TE links and there may be
other underlying physical connectivity.
Note that an LMP control channel is formed simply
when the two LMP speakers are in communication. Since they communicate using LMP
over UDP, this is not a big problem in your figure so long as:
1. node#1 knows about the existence of
node#3
and can send UDP packets to
it.
2. node#2 is capable of forwarding IP
packets
Cheers,
Adrian
----- Original Message -----
Sent: Friday, December 10, 2004 7:29
AM
Subject: RE: Question on LMP
Adjacency
> Question is not clear.
>
> -----Original
Message-----
> From: owner-ccamp@ops.ietf.org
[mailto:owner-ccamp@ops.ietf.org]On Behalf Of
> 김영화
> Sent: Friday,
December 10, 2004 12:37 PM
> To: ccamp@ops.ietf.org
> Subject:
Question on LMP Adjacency
>
>
> Hi, ccampers
>
> I've a question on the LMP adjacency.
> In the LMP
draft, the definition is as follows:
>
>
An "LMP adjacency" is formed between two nodes when at least one bi-
>
directional control channel is established between
them. Multiple
> control channels may be active
simultaneously for each adjacency;
> control
channel parameters, however, MUST be individually negotiated
>
for each control channel.
>
> Then,
my question is this.
>
> For an example,
> we
assume a sample network consisting of Node#1, Node#2, and Node#3.
> Node#1
is directly connected to Node#2, and Node#2 is directly connected to
>
Node#3.
> This means there is no direct connection between Node#1
and Node#3 in the
> sample network.
> In this situation, we
assume that an EoS channel(EoS#1) between Node#1 and
> Node#2 is
terminated, but another EoS channel(EoS#2) between Node#1 and
> Node#3 is
terminated through Node#2.
> Here, I think that in case of the
EoS#1, LMP adjacent nodes are Node#1 and
> Node#2, but in case of the
EoS#2, LMP adjacent nodes are Node#1 and Node#3.
> In addition, I think
that the type of data link for EoS#1 and EoS#2 is a
> component link and
the link connection verification of EoS#2 between Node#1
> and Node#3
could be performed. The only condition is, of course, is to
>
observe the definition of the LMP adjacency above.
>
>
Node#1 Node#2
Node#3
>
|-----EoS#1----|
|
>
|------------EoS#2------------|
>
> Could you help me if my
understanding is short ?
>
> Thanks,
>
>
Young.
>
>
>
>