Chapter 39 Diagnostic
VMG3925-B10C/B30C User’s Guide
277
The following table describes the labels in this screen.
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:
Table 125 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.
OAM ID
Enter a positive integer to identify this node.
Auto Event
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.
Features
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.
Apply
Click this button to save your changes.
• 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
Содержание VMG3925-B10C
Страница 16: ...16 PART I User s Guide ...
Страница 69: ...69 PART II Technical Reference ...
Страница 160: ...Chapter 10 Quality of Service QoS VMG3925 B10C B30C User s Guide 160 Figure 72 Classification Setup Add Edit ...
Страница 269: ...Chapter 37 Firmware Upgrade VMG3925 B10C B30C User s Guide 269 Figure 157 Error Message ...
Страница 287: ...287 PART III Appendices Appendices contain general information Some information may not apply to your device ...