Chapter 29 Troubleshooting; Preventive Maintenance; Troubleshooting The Bpx Switch; Table - Cisco BPX-BXM-155-8DX Installation And Configuration Manual

Troubleshooting
This chapter describes periodic maintenance procedures and general troubleshooting procedures:
•
•
•
•
•
•
•
•
After an alarm occurs, use the BPX switch software to isolate the problem. If an BPX switch part has
failed, then it must be replaced. See Chapter 30, Replacing Parts.

Preventive Maintenance

You perform most monitoring and maintenance of the BPX switch via the BPX switch operating system
software. Preventive maintenance of the BPX switch hardware is minimal and requires only that you
periodically check:
1.
2.
3.

Troubleshooting the BPX Switch

This section describes basic troubleshooting steps to be taken for some of the more obvious node
failures (refer to Table 29-1). This is not an exhaustive set of procedures, and does not take into account
any of the diagnostic or network tools available to troubleshoot the BPX switch. Refer to the Cisco WAN
Switching Command Reference for information on commands and command usage.
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Preventive Maintenance
Troubleshooting the BPX Switch
Troubleshooting SONET Automatic Protection System
APS Configuration Problems
Operational Problems
BME Connection Diagnostics
Troubleshooting VSI Problems
Troubleshooting Commands
The node supply voltage and internal cabinet temperature by using the dspasm command. The
temperature should not exceed 50 C.
The event log by using the dsplog command.
The network alarm status by using the dspalms command.
C H A P T E R
Cisco BPX 8600 Series Installation and Configuration
29
29-1