Alcatel-Lucent 7705 Service Manual page 75

The following specific configuration information is required by a MEP to support ETH-AIS:
ETH-Test
The Ethernet Test (signal) function (ETH-Test) is a Y.1731 CFM enhancement used to
perform one-way, on-demand, in-service diagnostics tests, which include verifying frame
loss, bit errors, and so on.
Note: The out-of-service diagnostics test is not supported in the 7705 SAR, Release 3.0.
When configured to perform such tests, a MEP inserts frames with ETH-Test information
such as frame size and transmission patterns.
When an in-service ETH-Test function is performed, data traffic is not disrupted and the
frames with ETH-Test information are transmitted.
To support ETH-Test, a Y.1731 MEP requires the following configuration information:
A MEP inserts frames with ETH-Test information towards a targeted peer MEP. The
receiving MEP detects the frames with ETH-Test information and performs the requested
measurements.
7705 SAR OS Services Guide
• client MEG level — the MEG level at which the most immediate client layer MEPs
exist
• ETH-AIS transmission period — the transmission period of frames with ETH-AIS
information
• priority — the priority of frames with ETH-AIS information
• MEG level — the MEG level at which the MEP exists
• unicast MAC address — the unicast MAC address of the peer MEP for which ETH-
Test is intended
• data — an optional element with which to configure data length and contents for the
MEP. The contents can be a test pattern and an optional checksum.
Examples of test patterns include all 0s or all 1s. At the transmitting MEP, this
configuration information is required for a test signal generator that is associated
with the MEP. At the receiving MEP, this configuration is required for a test signal
detector that is associated with the MEP.
• priority — the priority of frames with ETH-Test information
Services Overview
Page 75