Re: [Mpls-interop] MPLS-TP OAM requirements - Lock and notificationof lock

[Huub van Helvoort <[e-mail]>]

Hi Malcolm,

You wrote:

> I think you are making this far too complicated...  I see no need to
> propagate the locked indication across layers.
>
> If the operator decides to lock a LSP (for example to run a test) then
> the clients of that LSP should be taken out of service before the lock
> is applied.

That should be the proper procedure.

> When a server LSP detects the locked notification it informs the client
> adaptation that it is no longer receiving valid traffic.  If the client
> has already been taken out of service then this is a "don't care".  If
> the client has not been taken out of service then it should raise an
> alarm.

But shouldn't the client layer be able to determine whether
the fault cause is in its own layer or in the server layer?

This is similar to the notification server trail failure to
its client layer.

So in fact the same notification can be used for both cases.

Regards, Huub.

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