Perform private line Ethernet terminal loopback transmission test

Procedure 11-7: Perform private line Ethernet terminal loopback transmission test

Overview

Use this procedure to perform a private line Ethernet terminal loopback transmission test on the VLNC35 Fast Ethernet Private Line circuit pack. It is assumed that the Fast Ethernet service has been configured using the procedures in this chapter.

Privilege level

You must login as a General or Privileged user to complete this task.

Important!

The following rules apply for this test:

Only out-of-service testing may be performed.
Only one loopback is allowed on a circuit pack.

Before you begin

Prior to performing this task, refer to Before you begin and Required equipment in this chapter and you must have complete work instructions for this task that detail:

The shelf slots, circuit packs, ports that are being tested.

You must have an Ethernet test set capable of applying the external test signal required for this task.

Steps

Use the following procedure to perform a private line Ethernet terminal loopback transmission test on the VLNC35 Fast Ethernet Private Line circuit pack:


1	Use the WaveStar^® CIT to log in to the near end Alcatel-Lucent 1850 TSS-5 shelf. Reference: Procedure 14-2: Connect personal computer (PC) and establish WaveStar^® CIT session
2	Review the following test set considerations: Set the Destination Address to "Broadcast" (all Fs [FFFFFFFF}). Set the transmission mode to send a single packet or to send a continuous stream. Due to clock differences, it may not be possible to approach the line rate without some packet loss, even when VCG bandwidth is not limiting.
3	Connect the near end port to the Ethernet test set and start sending traffic to the other end.
4	For the circuit being tested, perform a terminal loopback at the far-end node port. Select Fault → Analysis → Port Loopback from the System View menu at the far-end node. Expand the circuit pack details, select the port, then click Select at the bottom of the screen.
5	Verify the port AID, then click the Operate. Click on Apply at the bottom of the window. Read the warning message, then click Yes to operate the command.
6	Verify traffic is being received at the source node Ethernet test set.
7	Use the Fault → Analysis → Port Loopback command to release the loopback. Repeat this procedure for all circuits being tested. End of steps