CHAPTER
BXM T3/E3, 155, and 622 6-1
6
BXM T3/E3, 155, and 622
This chapter describes the BXM card sets which include the BXM T3/E3, BXM-155, and BXM-622.
The BXM cards may be configured for either trunk or service (port UNI) mode. In trunk mode they
provide BPX network interfaces and in service (port UNI) mode they provide service access to CPE.
The chapter includes the following:
• Tag Switching
• Dynamic Resource Partitioning for SPVCs
• BXM Cards
• BXM Capabilities
• Card Operation
• BXM Functional Description
• Fault Management and Statistics
• Technical Specifications
• General SONET Notes
• User Commands
• Configuring Connections
• Command Line Interface Examples
• Configuring the BPX Switch for SVCs
• Configuring the MGX 8220
• Resource Partitioning
Tag Switching
Starting with switch software release 9.1, the BXM also supports tag switching. Partitions for the
BXM can be allocated either between:
• SVCs and PVCs, or
• Tag switching virtual circuits (TVCs) and PVCs.
For information on Tag Switching, refer to Chapter 9, Tag Switching.
