Filter
Top Products
28-10
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.10, Part Number 78-11603-01 Rev. D0, July 2001
Chapter28 Troubleshooting
Troubleshooting SONET Automatic Protection System
Troubleshooting SONET Automatic Protection System
Introduction
For APS line redundancy, these problems can occur:
• APS Configuration Problems, page 28-10
–
Not Able to Correctly Set Up APS 1+1 Line Redundancy Configuration, page 28-10
–
Unable to Set Up APS 1:1 Line Redundancy Configuration, page 28-11
–
Operator Information about APS Architectures, page 28-11
• Operational Problems, page 28-12
–
What the Various APS Switches Mean
–
Unable to Perform APS External Switch After Forced or Manual APS Switch, page 28-13
–
APS Manual Switch to a Line Does Not Occur Right Away, page 28-13
–
Switch Occurs After Lockout Issued, page 28-13
–
APS Switch Made to a Line in Alarm, page 28-14
–
Reverse Switch, page 28-14
–
APS Switch Occurs at the Same Time as a Y-Red Switch, page 28-14
–
APS Switch Occurs After Issuing an APS Clear Switch, page 28-15
–
APS Switch Occurs Even Though APS Forced Switch in Effect, page 28-15
–
APS Line is Failing to Switch, page 28-15
–
Large Cell Loss When Performing a Front Card Switchover, page 28-15
–
APS Service Switch Description, page 28-15
–
APS Line Does Not Seem to Switch and Active Line is in Alarm, page 28-16
–
BXM Back Card LED Green and Yellow Indications, page 28-17
–
BXM Port LED States, page 28-17
• APS Alarms
–
What Do APS Alarms Represent
APS Configuration Problems
The following sections describe possible APS configuration problems.
Not Able to Correctly Set Up APS 1+1 Line Redundancy Configuration
Description: The addapsln user interface command fails to execute correctly for APS 1+1 line
addition.