ZyXEL Communications EMG8726-B10A User Manual page 272

Table 130 Maintenance > Diagnostic > 802.1ag (continued)
LABEL
Destination
MAC Address
Test Result
Loopback
Message (LBM)
Linktrace
Message (LTM)
Apply
Send Loopback
Send Linktrace
37.5 802.3ah
Click Maintenance > Diagnostic > 803.ah to open the following screen. Use this screen to the link
monitoring protocol IEEE 802.3ah Link Layer Ethernet OAM (Operations, Administration and
Maintenance.
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 or OAM PDU's to transmit link status
information between directly connected Ethernet devices. Both devices must support IEEE 802.3ah.
Because link layer Ethernet OAM operates at layer two of the OSI (Open Systems Interconnection Basic
Reference) model, neither IP or SNMP are necessary to monitor or troubleshoot network connection
problems.
Figure 186 Maintenance > Diagnostic > 802.3ah
The following table describes the labels in this screen.
Table 131 Maintenance > Diagnostics > 802.3ah
LABEL
IEEE 802.3ah Ethernet OAM
Interface
OAM ID
Chapter 37 Diagnostic
DESCRIPTION
Enter the target device's MAC address to which the EMG 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.
DESCRIPTION
Select Enable or Disable to activate or deactivate the Ethernet OAM on the
specified interface.
Select the interface on which you want to enable the IEEE802.3ah.
Enter a positive integer to identify this node.
EMG6726/8726-B10A User's Guide
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