Huawei NetEngine80E Configuration Manual - Reliability page 492

HUAWEI NetEngine80E/40E Router
Configuration Guide - Reliability
l When creating a MEP on a device connecting the Layer 2 network to the Layer 3 network,
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Follow-up Procedure
An MA is associated with a VLAN only.
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Creating a MEP
A MEP is an edge node of an MA. It is configured on an interface manually.
Context
When creating a MEP in an MA, also note that:
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The following lists the requirements for the number and types of MEPs created in an MA:
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Perform the following steps on the edge devices of an MA:
Issue 02 (2014-09-30)
NOTE
l An AM is not associated with any VLAN by default.
l Ethernet CFM monitors the connectivity of links in each MA. Associating an MA with a VLAN
allows Ethernet CFM to monitor the connectivity of the VLAN.
l An MA used to monitor the connectivity between two directly connected devices does not need to
be associated with a VLAN. An MA used to monitor the connectivity of two indirectly connected
devices must be associated with a VLAN.
specify a VLAN. The VLAN is automatically associated with the MA. For details, see the
section "Creating a MEP."
If you need to create multiple MAs in an MD, repeat Step 3 and Step 4.
If you need to create multiple MAs in multiple MDs, repeat Step 2 to Step 4.
When an inward-facing MEP is created, the MA must be associated with a VLAN and the
interface on which the MEP resides must be added to the VLAN. The inward-facing MEP
then broadcasts the OAMPDUs in the VLAN associated with the MA. That is, the
inwarding-facing MEP sends the OAMPDUs out through all the interfaces excluding the
interface on which the MEP resides in the VLAN associated with the MAC.
When the outward-facing MEP is created, the MA is not required to be associated with a
VLAN. However, if the MA is associated with a VLAN, the interface on which the MEP
resides must be added to the VLAN. The outward-facing MEP sends out the OAMPDUs
through the interface on which the MEP resides.
When the VLAN-based MEP is created, the MA must be associated with a VLAN.
The inward-facing interface-based MEP and the outward-facing interface-based MEP
cannot coexist.
Only one outward-facing interface-based MEP can be created. Multiple inward-facing
interface-based MEPs can be created. However, only one inward-facing interface-based
MEP can be created on an interface.
Only one VLAN-based MEP can be created.
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8 Ethernet OAM Configuration
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