ZyXEL Communications VMG1312-BX0D - OAM Ping

Chapter 37 Diagnostic
VMG1312-Bx0D User’s Guide
251
The following table describes the fields in this screen.
37.5 OAM Ping
Click Maintenance > Diagnostic > OAM Ping to open the screen shown next. Use this screen to
perform an OAM (Operation, Administration and Maintenance) F4 or F5 loopback test on a PVC. The
VMG sends an OAM F4 or F5 packet to the DSLAM or ATM switch and then returns it to the VMG.
The test result then displays in the text box.
ATM sets up virtual circuits over which end systems communicate. The terminology for virtual
circuits is as follows:
Figure 165 Virtual Circuit Topology
Table 122 Maintenance > Diagnostic > 802.1ag
LABEL DESCRIPTION
802.1ag Connectivity Fault Management
Maintenance
Domain (MD)
Level
Select a level (0-7) under which you want to create an MA.
Destination
MAC Address
Enter the target device’s MAC address to which the VMG performs a CFM loopback test.
802.1Q VLAN
ID
Type a VLAN ID (0-4095) for this MA.
VDSL Traffic
Type
This shows whether the VDSL traffic is activated.
Loopback
Message (LBM)
This shows how many Loop Back Messages (LBMs) are sent and if there is any inorder or
outorder Loop Back Response (LBR) received from a remote MEP.
Linktrace
Message (LTM)
This shows the destination MAC address in the Link Trace Response (LTR).
Set MD Level Click this button to configure the MD (Maintenance Domain) level.
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.
• Virtual Channel (VC) Logical connections between ATM devices
• Virtual Path (VP) A bundle of virtual channels
• Virtual Circuits A series of virtual paths between circuit end points