Managing and Troubleshooting the Versalar Switch Router 150006-4 302768-C Rev 00Specifying the FDL Target Address ModeThe Versalar 15000 uses the fdl-target-hdlc-address parameter to address the CIterminal equipment (TE) when sending maintenance messages. You set thisparameter to match the TE target unit address.To do so, go to the T1 or FT1 prompt (for example, t1/2/1/4 or ft1/2/1/5) and enterthe following command:fdl-target-hdlc-address {by | az}by (the default setting) sets the target unit address to match either “b” or “y.”az sets the target unit address to match either “a” or “z.”The following example shows how to set the FDL HDLC address mode on T1channel 4, slot 2, connector 1:t1/2/1/4# fdl-target-hdlc-address azt1/2/1/4#Selecting an FDL Code to Send to the Remote DeviceFDL loopback options apply only when the FT1 line type is set to the defaultvalue, esf.To send an FDL loopback message, go to the T1 test prompt (for example,t1-test/t1-2/1/4) and enter the following command:send-fdl-loopback-code <action>action is one of the following:• no-action indicates not to send a loopback code to the remote end. This is thedefault setting.• payload-loop sends a loop-up signal to the remote end to initiate payloadloopback. The signal loops through the T1 framing device before the receivedsignal is looped back for retransmission.• deactivate-pl sends a loop-down code to the remote end to stop the payloadloopback.• line-loopci sends a customer installation (CI) loopback message. The signaldoes not go through the framing device.
