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Configuring Circuit Lines and Ports
A circuit line is the physical wire that carries data, voice, Frame Relay, or ATM traffic between a BPX
node (or IGX node) and customer premises equipment (CPE). Each piece of customer premises
equipment is attached to a node through a circuit line.
A circuit line is connected to a physical interface on a switch back card. Each physical line interface is
represented by a unique software configuration called a port or logical interface for that line. A port is
the logical interface between the BPX network and a single ATM device attached by a line. There is one
port for each active line.
ATM ports are provided on ASI and BXM cards.
Before you can add connections on the circuit line, you must create a port or a virtual port on the line.
Contents of this chapter include:
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Setting Up a Circuit Line
ATM connections require an active line.
Before you can activate and configure a circuit line on a card, you must first establish or "up" a card by
using the upcd command.
Use the cnfln to configure circuit lines. The switch software prompts for the parameters appropriate for
the card type it detects. For details on each circuit line command, refer to the Cisco WAN Switching
Command Reference, Release 9.3.30.
Line commands are the same as circuit line commands.
Note
To establish (or "up") an active line, use the following procedure.
Ensure the card must be in either the active or standby state
Step 1
Step 2
Enter the upln command to activate a circuit line in a slot that contains the appropriate circuit line card
set.
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Setting Up a Circuit Line
Setting Up Ports and Virtual Ports
Local Management Interface and Integrated Local Management Interface
ILMI Neighbor Discovery
C H A P T E R
Cisco BPX 8600 Series Installation and Configuration
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Troubleshooting
