ZyXEL VMG4927-B50A User Guide - Page 276
Maintenance > Diagnostic, LABEL, DESCRIPTION
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Chapter 37 Diagnostic Table 132 Maintenance > Diagnostic > 802.1ag (continued) LABEL DESCRIPTION Test the connection to another Maintenance End Point (MEP) Destination MAC Address Enter the target device's MAC address to which the VMG performs a CFM loopback and linktrace test. Test Result Loopback This shows Pass if a Loop Back Messages (LBMs) responses are received. If LBMs do not get a Message (LBM) response it shows Fail. Linktrace This shows the MAC address of MEPs that respond to the LTMs. Message (LTM) Apply Click this button to save your changes. Send Loopback Click this button to have the selected MEP send the LBM (Loop Back Message) to a specified remote end point. Send Linktrace Click this button to have the selected MEP send the LTMs (Link Trace Messages) to a specified remote end point. 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 172 Maintenance > Diagnostic > 802.3ah The following table describes the labels in this screen. Table 133 Maintenance > Diagnostics > 802.3ah LABEL DESCRIPTION IEEE 802.3ah Ethernet OAM Select Enable or Disable to activate or deactivate the Ethernet OAM on the specified interface. Interface Select the interface on which you want to enable the IEEE802.3ah. VMG4927-B50A / VMG9827-B50A User's Guide 276