Dear OPSAWG, CCAMP and NMOP, On behalf of the authors I like to introduce you to a new IPFIX document: https://datatracker.ietf.org/doc/html/draft-netana-opsawg-ipfix-gpon-gem
Below the excerpt from the document introduction. We are currently working on
an implementation which will be validated at an upcoming IETF hackathon.
Looking forward for your feedback, review and adoption at OPSAWG.
Best wishes
Thomas
1. Introduction
The G-PON Encapsulation Method (GEM) data plane header defined in Section 8.3.1
of [itu-g984-3] facilitates the framing, error control, payload type
identification and payload separation in the Optical Distribution Network. It
is being used in the Optical Distribution Network between the Optical Line
Termination (OLT) at the network operator and the Optical Network Unit (ONU),
Optical Network Terminal (ONT) at the end user in the passive optical transport
within the broadband access domain.
IPFIX is widely applied in the broadband access domain to gain visibility into
the forwarding and data plane. However, that visibility is today constraint to
the ethernet, IP and application transport properties of the data plane.
This document specifies two IPFIX Information Elements (IEs) to facilitate
visibility in the GEM data plane.
Figure 1 shows the GEM frame, the GEM header and its properties.
GEM Frame
|<------------------------------------------------------>|
| |
+--------------+-----------------------------------------+
| GEM Header | GEM Payload |
+--------------+-----------------------------------------+
/ |
/ --------------\
/ --------------\
/ -----------\
v v
+----------------+----------------+---------+------------------+
| PLI | Port-ID | PTI | HEC |
| (12-bits) | (12-bits) | (3-bits)| (13-bits) |
+----------------+----------------+---------+------------------+
Figure 1: G.984.3 GEM header and frame structure
These IEs are used to export the GEM Port-ID and PTI to enable the distinction
between user service and user and OAM application frames.
-----Original Message-----
From: internet-dra...@ietf.org <internet-dra...@ietf.org>
Sent: Monday, April 7, 2025 12:20 PM
To: Haomian Zheng <zhenghaom...@huawei.com>; Graf Thomas, INI-NET-VNC-E2E
<thomas.g...@swisscom.com>
Subject: New Version Notification for draft-netana-opsawg-ipfix-gpon-gem-00.txt
Be aware: This is an external email.
A new version of Internet-Draft draft-netana-opsawg-ipfix-gpon-gem-00.txt has
been successfully submitted by Thomas Graf and posted to the IETF repository.
Name: draft-netana-opsawg-ipfix-gpon-gem
Revision: 00
Title: Export of Gigabit Passive Optical Network Encapsulation Mode in IP
Flow Information Export (IPFIX)
Date: 2025-04-07
Group: Individual Submission
Pages: 8
URL:
https://www.ietf.org/archive/id/draft-netana-opsawg-ipfix-gpon-gem-00.txt
Status: https://datatracker.ietf.org/doc/draft-netana-opsawg-ipfix-gpon-gem/
HTMLized:
https://datatracker.ietf.org/doc/html/draft-netana-opsawg-ipfix-gpon-gem
Abstract:
This document introduces new IP Flow Information Export (IPFIX)
Information Elements to identify a set of G-PON Encapsulation Method
entities in the Passive Optical Transport of the Optical Distribution
Network.
The IETF Secretariat
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