Specifications

9-5
Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
OL-1166-04
Chapter 9 Cisco IGX 8400 Series Frame Relay Service
Frame Relay Provisioning
Commands for T1/E1 FR
Use the logical port number to activate a port (upport), add connections (addcon), or display statistics
(dspportstats). For example, after you add logical port 14.60 2.1-24 with addport, you up this logical
port by entering “upport 14.60.” The maximum number of logical port numbers on a UFM-C is 250.
Use dspports to display logical ports.
Deleting a FR Port
Before deleting a logical port with delport, you must de-activate the physical port with dnport.Delete
a logical port by executing the delport command. Executing delport dissolves any groups of time slots
and unassigns all time slots on the logical port.
Note Before you delete a FR port, you must delete any connections on the port with the delcon command.
Port Mode Selection for V.35 and X.21
The position of a small jumper board at each port determines whether it is a DCE or a DTE.
Caution To prevent damage to the FRI cards, ground yourself before handling IGX cards by clipping a grounding
strap to your wrist, and clipping the wrist strap lead to the enclosure.
A small jumper card near each connector on the back card selects the port’s mode. The factory-set modes
alternate between DCE and DTE. The steps that follow describe how to change the mode of a port. The
relation between back card row numbers and the port mode is as follows:
• DCE=1, 2, 4, and 5 (jumper card is closest to the FRI faceplate)
• DTE=2, 3, 5, and 6 (jumper card is one row away from the FRI faceplate)
Note Jumper cards for selecting the mode of a V.35 or X.21 interface have an impedance of either 100 ohms
or 200 ohms. On ports with Y-cable redundancy, the impedance is important. With Y-cable redundancy,
use the 200-ohm jumper card. Without Y-cable redundancy, the 100-ohm jumper card is adequate.
Note Carefully choose the mode for each port. If you change a port mode after other ports on the card are
carrying traffic, it disrupts service on the other ports.
To change the mode of an interface, reposition the jumper board for the port as follows:
Step 1 If the FRI is already in the node:
• Note its slot number.
• Loosen the captive mounting screws on both ends of the faceplate.
• Operate the card extractor levers and slide the card out.
Step 2 To change to DTE, move the jumper board one row of pins away from the FRI faceplate (see Figure 9-1).
For DTE mode, the jumper board should occupy rows 2, 3, 5, and 6.