Ah (Oam) - Ex5501-B0 Only - ZyXEL Communications EX5501-B0 User Manual

Table 141 Maintenance > Diagnostic > 802.1ag (continued)
LABEL
Local MEP ID
CCM
Remote MEP ID
Test the connection to another Maintenance End Point (MEP)
Destination
MAC Address
Test Result
Loopback
Message (LBM)
Linktrace
Message (LTM)
Apply
Send Loopback
Send Linktrace

40.5 802.3ah (OAM) - EX5501-B0 Only

Click Maintenance > Diagnostic > 803.ah to open the following screen. Link layer Ethernet OAM
(Operations, Administration and Maintenance) as described in IEEE 802.3ah is a link monitoring protocol.
It utilizes OAM Protocol Data Units (OAM PDU's) to transmit link status information between directly
connected Ethernet devices. Both devices must support IEEE 802.3ah.
Figure 200 Maintenance > Diagnostic > 802.3ah
Chapter 40 Diagnostic
DESCRIPTION
Enter the local Maintenance Endpoint Identifier (1~8191).
Select Enable to continue sending MEP information by CCM (Connectivity Check Messages).
When CCMs are received the Zyxel Device will always process it, whether CCM is enabled or
not.
Enter the remote Maintenance Endpoint Identifier (1~8191).
Enter the target device's MAC address to which the Zyxel Device performs a CFM loopback and
linktrace test.
This shows Pass if a Loop Back Messages (LBMs) responses are received. If LBMs do not get a
response it shows Fail.
This shows the MAC address of MEPs that respond to the LTMs.
Click this button to save your changes.
Click this button to have the selected MEP send the LBM (Loop Back Message) to a specified
remote end point.
Click this button to have the selected MEP send the LTMs (Link Trace Messages) to a specified
remote end point.
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