Re: [L2sm] Proposed Liaison to 3GPP SA5

Fioccola Giuseppe <> Tue, 05 June 2018 15:01 UTC

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From: Fioccola Giuseppe <>
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Thread-Topic: [L2sm] Proposed Liaison to 3GPP SA5
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Date: Tue, 5 Jun 2018 15:01:06 +0000
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Subject: Re: [L2sm] Proposed Liaison to 3GPP SA5
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Hi Adrian, All,
I absolutely agree with the proposed Liaison to 3GPP SA5. I would also suggest to mention RFC8199 on YANG Module Classification.

Best Regards,


-----Original Message-----
From: L2sm [] On Behalf Of Adrian Farrel
Sent: lunedì 4 giugno 2018 13:15
Subject: [L2sm] Proposed Liaison to 3GPP SA5

Hi WG,

3GPP SA5 is working on Management and orchestration of 5G networks and network slicing ( and is considering various existing data models as references. 3GPP Release-15 is targeting freeze date of September 2018 and plan two meetings in June and August respectively to meet the deadline of 3GPP Release-15.
They seem to have been soliciting input from various SDOs (most recently the BBF) but have not approached the IETF. This may be because they already know what we are working on, or it may be because they didn't realise.

So Qin and I propose to send the following liaison statement to them for information. Since the next meeting is on June 26th, we think the deadline for sending this is should be June 15th.

Any comments or edits would be welcomed.

Thanks for any input or advice.

Qin and Adrian

=== Draft LS ===

To: 3GPP SA5
Cc: Thomas Tovinger, 3GPP SA5 Chairman
       Ignas Bagdonas and Warren Kumari, IETF Operations and Management ADs
From: Qin Wu and Adrian Farrel, IETF L2SM working group co-chairs
For: Information

We note that 3GPP SA5 is working on Management and orchestration of 5G networks and network slicing ( and is considering various existing data models as references. 3GPP Release-15 is targeting freeze date of September 2018 and plan two meetings in June and August respectively to meet the deadline of 3GPP Release-15. We would like to take this opportunity to inform you of the status of several pieces of work in the IETF that satisfy the transport support for network slicing on IP services , L2 service, and TE service.

RFC 8299 provides A YANG Data Model for L3VPN Service Delivery.
This document is a published RFC with IETF consensus.
draft-ietf-l2sm-l2vpn-service-model provides A YANG Data Model for L2VPN Service Delivery.
This document has achieved working group and IETF consensus, and is currently completing approval for publication as an RFC.
RFC 8309 sets the previous two documents in context by explaining what the IETF means by the term "Service Model"
You may also be interested in work in the TEAS working group on Abstraction and Control of Traffic Engineered networks (ACTN).
In particular, there is YANG model for Virtual Network operation in an ACTN context that may be of specific interest to you:
Wishing you all success in your work,
Qin Wu and Adrian Farrel
Co-chairs, IETF L2SM working group

L2sm mailing list

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