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Command Overview
The network topology as seen from a dsptrks command at BPX_A would be:
Command Overview
The commands summarized are specific to virtual trunk usage on the BPX, using the BXM cards. For
complete information about each these commands, refer to the Cisco WAN Switching Command
Reference and Cisco WAN Switch SuperUser Command Reference.
For information about the UXM, refer to the IGX 8400 Series documents. Also, refer to the Cisco WAN
Manager documents for application information using a graphical user interface for implementing
command functions.
Primary Configuration Commands
The primary commands used for configuration of virtual trunks are described in Table 24-4.
Table 24-4 Commands Used for Primary Configuration
Name
Description
cnftrk
Configures a trunk. The following are the main parameters:
Transmit trunk rate
•
Trunk VPI
•
•
Virtual Trunk Type
Connection Channels
•
•
Valid Traffic Classes
The VPI configured for a virtual trunk must match the VPI of the VPC in the public ATM cloud.
Every cell transmitted to the virtual trunk has a VPI value. The following are the valid VPC VPIs
that depend on the port type:
Port Type
BXM/UXM (UNI)
BXM/UXM (NNI)
BNI T3/E3
BNI OC-3
Cisco BPX 8600 Series Installation and Configuration
24-16
BPX_A 4.3.1-10.2.1/IGX_A
BPX_A 4.3.2-5.1.1/BPX_B
Valid VPI Range
1 to 255
1 to 4095
1 to 255
1 to 63
Chapter 24
Configuring BXM Virtual Trunks
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
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Troubleshooting
