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[mpls-tp] Use of term "interface" in MPLS-TP Identifiers and OAM Framework drafts

"BUSI, ITALO (ITALO)" <italo.busi@alcatel-lucent.com> Fri, 10 December 2010 08:58 UTC

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From: "BUSI, ITALO (ITALO)" <italo.busi@alcatel-lucent.com>
To: "mpls-tp@ietf.org" <mpls-tp@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
Date: Fri, 10 Dec 2010 10:00:07 +0100
Thread-Topic: Use of term "interface" in MPLS-TP Identifiers and OAM Framework drafts
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Subject: [mpls-tp] Use of term "interface" in MPLS-TP Identifiers and OAM Framework drafts
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I see a lot of comments related to the term "interface" used within the OAM Framework draft in the context of the per-interface MIP definition and NO comments on the same term used within the Identifiers draft.

I would like to clarify that the same term "interface" actually represents the same concept in both the MPLS-TP Identifiers and MPLS-TP OAM Framework drafts.

I would therefore propose that the following definition is added to both drafts:

 "
Interface: An interface is the attachment point to a server (sub-)layer e.g., MPLS-TP section or MPLS-TP tunnel.
"

This definition is taken from the text in section 4 of the Identifiers draft with the following proposed changes:

1) c/Access Point (AP)/attachment point/ as proposed by ITU-T

2) c/layer/(sub-)layer/ to align the definition with the outcome of past discussion: label stacking is a form of sub-layering with the MPLS and MPLS-TP layer network.

I have a strong opinion that both the MPLS-TP Identifiers and the MPLS-TP OAM Framework must use the same term (and definition) to identify the same entity.

I have a preference to keep the term "interface" on both drafts to speed up the work.

Italo

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