Installation guide

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Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 3 Installing the IGX
Making Frame Relay Connections
Connecting UFM Cabling
For important details on standard cables and Y-cables for the UFI back cards, refer to the cabling
description in the UFM-U section of the Cisco IGX 8400 Series Provisioning Guide.
Take the following steps after you have inserted the cards according to the information on installing
cards in the “Preparing the Cards” section on page 3-1. Connect the cables as follows:
Step 1 For the UFM-U/UFI card sets, make sure that the cables are the correct DCE or DTE versions. For V.35
and X.21 connectors where both ports are to be used with two-port versions of the cable, the cable is
either DCE or DTE. (You must specify both ports to be either DCE or DTE when you configure the port
with the cnffrport command.)
Step 2 Bring each cable through the opening at the top or bottom of the cabinet (if applicable) and along the
back of the unit. If necessary, use the cable manager to help route the cables.
Step 3 Add optional Y-cables as necessary.
Step 4 Secure the cables to the connectors on the back cards that mate with the correct front card. If the front
card is a UFM-4C, use only the first four lines. If you install Y-cable redundancy on a UFI-4HSSI card,
only Port 1 is configurable for redundancy.
Step 5 Record the slot number of each line for configuration purposes after you install the hardware.
Setting Up Frame Relay Ports and Connections (UFM)
This section outlines the steps for setting up and deleting Frame Relay ports, adding connections, and
bundling connections. If a port has multiple permanent virtual circuits (PVCs), you can optionally
bundle the connections. Bundling facilitates network meshing. You can specify connection bundling
during parameter specification in the add connection (addcon) command: if you press Return without
specifying a data-link connection identifier (DLCI) during port specification, the system prompts for
bundling information. See the “Frame Relay Connections” chapter in the Cisco WAN Switching
Command Reference for details.
Use either a Cisco WAN Manager workstation or an IGX control terminal to do the following tasks. For
detailed command descriptions, see the Cisco WAN Switching Command Reference.
Step 1 If necessary, use the dspcds command to verify the correct UFI back card and UFM front card. (Use the
vt command to access other nodes.) The dspcds output shows any mismatch between firmware on the
front card and firmware on the back card.
Step 2 If the card is a UFM-C, activate each line with the up line (upln) command. The range of lines for a
UFM-4C is 1 to 4. The range of lines for a UFM-8C is 1 to 8.
A UFM-U does not require activation with the upln command.
Step 3 If the card is a UFM-C, assign logical Frame Relay ports to individual physical lines by using the
addfrport command. A UFM-U does not require the addfrport command. Optionally, use the
configure line command (cnfln) command for a UFM-C either before or after the addfrport command.
Note that if you use the cnfln command to assign a DS0 to carry signaling, you cannot subsequently
assign that DS0 for user-data with the addfrport command.
Step 4 If the card is a UFM-U, use the cnfmode command to configure the mode of the card if you do not use
the default of mode 1. You must understand the ramifications of this step before you use cnfmode. If
you do not understand the modes of the UFM-U, refer to the UFM-U description in the Cisco IGX 8400
Series Provisioning Guide.