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Liaison statement
Liaison about new project on YANG Modules for MEF Services

Additional information about IETF liaison relationships is available on the IETF webpage and the Internet Architecture Board liaison webpage.
State Posted
Submitted Date 2015-02-04
From Group MEF
From Contact Mike Bencheck
To Group IETF
To Contacts The IETF Chair <>
Cc The IESG <>
Nan Chen <>
Bill Bjorkman <>
Raghu Ranganathan <>
Purpose For information
Attachments Liaison about new project on YANG Modules for MEF Services
This is to inform you about a new project that has been started in MEF on YANG
Modules for MEF Services. The scope of this project is:

[From MEF Project Proposal]

To develop YANG modules specifications, at the management system (EMS or NMS)
and NE, in support of the attributes defined for the following: • EVC based
services as defined by MEF 6.2 • OVC based services as defined in MEF X (OVC
services), MEF 28(UTA), MEF 33(E-Access). • Relevant aspects of services using
MEF 43 vNID function, excluding data carried over the RMI channel. • Functions
such as LLB (MEF 46), and SAT PDU & Control Protocol. • Appendices might be
added to describe, as example, complete modules that incorporate modules from
other SDOs.

Individual sub-modules will be defined for the functional elements that could
be assembled to realize a specific service behavior at a given interface in the
NE, e.g. to enable an interface to behave as a MEF UNI.

The modules will use relevant aspects of Information Model specified in MEF 7.3
(e.g. as shown in Figure 5.6 and 5.7 in published specification MEF 7.2) and
any additional Managed Objects definitions in MEF 40 and MEF 42. In addition,
the MEF YANG modules will reference and/or align with modules, objects and
functions from other SDOs (IETF, ITU-T, IEEE) as needed. As an example, MEF
might need to co-develop a YANG module with another SDO such as IETF.

MEF hopes to share the status of this project’s activity on an ongoing basis
for any feedback that experts in your organization might be able to offer
towards the completion of this project.

The MEF TC meets next in Lisbon, Portugal,  April 13-16, 2015.