Oam Ping - ZyXEL Communications VMG3925-B30C User Manual

The following table describes the labels in this screen.
Table 125 Maintenance > Diagnostics > 802.3ah
LABEL
IEEE 802.3ah Ethernet OAM
Interface
OAM ID
Auto Event
Features
Apply

39.6 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:
• Virtual Channel (VC)
• Virtual Path (VP)
• Virtual Circuits
Chapter 39 Diagnostic
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.
Select Enable for the VMG to detect link status and send a notification when an
error (such as errors in symbol, frames, or seconds) is detected. Otherwise, click
Disable and you will not be notified.
Select Variable Retrieval so the VMG can respond to requests for information, such
as requests for Ethernet counters and statistics, about link events.
Select Link Events so the VMG can interpret link events, such as link fault and dying
asp.Link events are set in event notification PDUs (Protocol Data Units), and indicate
when the number of errors in a certain given interval (time, number of frames,
number of symbols, or number of errored frame seconds) exceeds a specified
threshold. Organizations may create organization-specific link event TLVs as well.
Select Remote Loopback so the VMG can accept loopback control PDUs to convert
VMG into loopback mode.
Select Active Mode so the VMG initiates OAM discovery, send information PDUs; and
may send event notification PDUs, variable request/response PDUs, or loopback
control PDUs.
Click this button to save your changes.
Logical connections between ATM devices
A bundle of virtual channels
A series of virtual paths between circuit end points
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