Huawei NetEngine80E Configuration Manual - Reliability page 398

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
The working mode of EFM OAM is an attribute of the interface enabled with EFM OAM. The
working mode of EFM OAM on an interface is active or passive. OAM discovery and remote
loopback are initiated only by the interface in active mode.
Ethernet CFM
Connectivity Fault Management (CFM) defined in IEEE 802.1ag specifies the OAM functions
of connectivity check for Ethernet bearer networks. It includes the Continuity Check (CC),
Loopback (LB), and Linktrace (LT). Ethernet CFM applies to end-to-end scenarios on large-
scale networks. Ethernet CFM is OAM at the network level.
Currently, IEEE 802.1ag has two versions, that is, IEEE 802.1ag Draft 7 and IEEE Standard
802.1ag-2007.
Table 8-1 Differences between IEEE 802.1ag Draft 7 and IEEE Standard 802.1ag-2007
Feature
Maintenance Domain
Default MD
Maintenance
Association
Maintenance
association End Point
Issue 02 (2011-09-10)
Table 8-1 shows the differences between these two versions.
IEEE 802.1ag Draft
7
Supported
Not supported
Supported
Supported
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8 Ethernet OAM Configuration
IEEE Standard
802.1ag-2007
Supported
Supported
Supported
Supported
Remarks
Thefeatures
and
configurations
supported by
802.1ag Draft 7
and Standard
802.1ag-2007
are the same.
-
The features
and
configurations
supported by
802.1ag Draft 7
and Standard
802.1ag-2007
are the same.
The features
and
configurations
supported by
802.1ag Draft 7
and Standard
802.1ag-2007
are the same.
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