60Chapter 5 T1/E1 port configurationChapter contentsIntroduction ..........................................................................................................................................................62T1/E1 port configuration task list..........................................................................................................................62Enable/Disable T1/E1 port .............................................................................................................................62Configuring T1/E1 port-type ..........................................................................................................................63Configuring T1/E1 clock-mode ......................................................................................................................63Configuring T1/E1 line-code ..........................................................................................................................63Configuring T1/E1 framing ............................................................................................................................64Configuring T1/E1 line-build-out (T1 only) ..................................................................................................64Configuring T1/E1 used-connector (E1 only) .................................................................................................64Configuring T1/E1 application mode .............................................................................................................65Configuring T1/E1 LOS threshold .................................................................................................................65Configuring T1/E1 encapsulation ...................................................................................................................65Create a Channel-Group .................................................................................................................................65Configuring Channel-Group Timeslots ..........................................................................................................66Configuring Channel-Group Encapsulation ...................................................................................................66Entering HDLC Configuration Mode ............................................................................................................66Configuring HDLC CRC-Type .....................................................................................................................67Configuring HDLC Encapsulation .................................................................................................................67T1/E1 Configuration Examples ......................................................................................................................67Example 1: Frame Relay without a channel-group .....................................................................................68Example 2: Framerelay with a channel-group ............................................................................................69Example 3: PPP without a channel-group .................................................................................................69Example 4: PPP with a channel-group .......................................................................................................69