PRELIMINARY
Ethernet Functions
• Link Monitoring — Detects and indicates link faults under a variety of
conditions and uses the event notification OAM PDU to notify the remote
OAM device when it detects problems on the link.
• Remote Failure Indication — Notification of an Ethernet link failure to or
from far end for an NE in operation.
• Remote Loopback — Puts the remote link partner into loopback mode so
that every frame received is transmitted back on the same port. This is
used to ensure the quality of links during installation or troubleshooting.
4.7.2
Ethernet Service OAM
Ethernet Service OAM is used to manage networks comprising of multiple
LANs. It supports fault management on Ethernet links, according to IEEE
802.1Q 2011, and performance management according to ITU Y.1731.
Ethernet Service OAM can be used in both Customer mode and Provider
mode, if Ethernet Service OAM PDUs are C- or S-VLAN tagged, and can be
used in LAG and RSTP/MSTP scenarios.
15527
Maintenance Association (MA)
Maintenance Domain (MD)
Network Element
Maintenance End Point (MEP)
Maintenance Intermediate Point (MIP)
MINI-LINK Other Network
Customer Customer
Figure 16 Ethernet Service OAM Network Overview
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1/22102-HRA 901 17/9 Uen PU1 | 2016-07-04
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