Use the Administration > OAM > Remote Loopback (Remote Loopback Test) page to initiate a loop back test to the peer device attached to the selected port.
Command Usage
You can use this command to perform an OAM remote loop back test on the specified port. The port that you specify to run this test must be connected to a peer OAM device capable of entering into OAM remote loop back mode.
During a remote loop back test, the remote OAM entity loops back every frame except for OAMPDUs and pause frames.
OAM remote loopback can be used for fault localization and link performance testing. Statistics from both the local and remote DTE can be queried and compared at any time during loop back testing.
To perform a loopback test, first enable Remote Loop Back Mode, click Test, and then click End. The number of packets transmitted and received will be displayed.
Parameters
Loopback Mode of Remote Device
Port identifier.
Shows if loop back mode is enabled on the peer. This attribute must be enabled before starting the loopback test.
Shows if loop back testing is currently running.
Loopback Test Parameters
Number of packets to send. (Range: 1-99999999; Default: 10000)
Size of packets to send. (Range: 64-1518 bytes; Default: 64 bytes)
Starts the loop back test.
Loop Back Status of Remote Device
Shows the loop back status on the peer. The loop back states shown in this field are described below.
Operating in normal mode with no loopback in progress.
The local OAM entity is starting the loopback process with its peer. It has yet to receive any acknowledgement that the remote OAM entity has received its loopback command request.
The local OAM client knows that the remote OAM entity is in loopback mode.
The local OAM client is in the process of terminating the remote loopback.
The remote OAM client has put the local OAM entity in loopback mode.
This status may be returned if the OAM loopback is in a transition state but should not persist.
The number of loop back frames transmitted during the last loopback test on this interface.
The number of loop back frames received during the last loopback test on this interface.
The percentage of packets for which there was no response.
Use the Administration > OAM > Remote Loop Back (Show Test Result) page to display the results of remote loop back testing for each port for which this information is available:
Port identifier.
The number of loop back frames transmitted during the last loop back test on this interface.
The number of loop back frames received during the last loop back test on this interface.
The percentage of packets transmitted for which there was no response.