Re: [Mpls-interop] MPLS-TP OAM requirements - AIS/LockNotif - Can MIPs send "usolicited" OAM messages ?

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

Hello George,

You wrote:

> I very much agree with Martin here.
> 
> In MPLS-TP the MEG level is not explicit.  It is inferred from the LSP the
> OAM is received on.  In typical LSRs, a Server layer down event, e.g. The
> failure of a link results in an "Interface Down Event".  When this occurs
> all clients of that interface that have registered for the event would be
> notified.  Further notification of peer entities is the responsibility of
> those clients.

I agree with this as well.

> So to me it makes a great deal of sense to have the MEP serving the link
> declare that the IF is down, and have the client MIPs be responsible for
> sending any needed OAM messages regarding that event.

The notification of the "interface down event" should be
accomplished by inserting the OAM message (server failed)
in the adaptation function of the server layer MEP.

Regards, Huub.

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