Specifications

28-4
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 28 Alarms and Statistics
APS Alarms
Clear APSOK APSlineisupwithnoalarms.
Clear APS Deactivated APS line is down.
Minor APS Lines looped APS line is looped.
Minor APS Remote Signal
Failure
A remote signal failure indicates that there is a problem with the
far end signalling information in the K1K2 bytes.
Minor APS Channel Mismatch Can only happen in bidirectional mode and indicates that there
is a problem with the underlying APS channel protocol. The
receive K2 channel number does not equal the transmit K1
channel number.
Minor APS Protection Switch
Byte Failure
Protection Switch Byte failure or PSB. In bidirectional mode
indicates that there is an invalid K1 byte. The receive K1 request
does not match the reverse request and is less than the transmit
K1 request. In all modes a PSB alarm indicates that K1/K2
protocol is not stable.
Minor APS Far End Protection
Failure
Far end protection failure indicates that the far end’s protection
line is failing. When there is Signal Failure on the protection
channel, the remote end sees Far End Protection Fail.
Minor APS Architecture
Mismatch
Architecture mismatch means that the APS configurationon one
end of the line does not match the APS configuration at the other
side of the line. Specifically GR-253 at one end and ITUT at the
other or 1+1 at one end and 1:1 at the other.
Info APS Init/Clear/Revert A BXM APS event indicating that the BXM APS has been
initialize or a clear switch has occurred or a revert switch has
occurred.
Info Cannot perform a
Clear/Revert switch
A BXM APS event indicating that the BXM APS was unable to
perform a clear or revertive switch.
Info APS Manual switch A BXM APS event indicating that the BXM APS
has performed a user requested manual switch.
Info Cannot perform a
Manual switch
A BXM APS event indicating that the BXM APS
was unable to perform a user requested manual switch.
Info APS Signal Degrade
LoPri switch
A BXM APS event indicating that the BXM APS
performed a switch due to a low priority signal degrade
condition. An automatically initiated switch due to a “soft
failure” condition resulting from the line BER exceeding a
pre-selected threshold (cnfapsln).
Info Cannot perform a Signal
Degrade LoPri switch
A BXM APS event indicating that the BXM APS
was unable to perform a switch due to a low priority signal
degrade condition.
Info APS Signal Degrade
HiPri switch
A BXM APS event indicating that the BXM APS performed a
switch due to a high priority signal degrade condition. An
automatically initiated switch due to a “soft failure” condition
resulting from the line BER exceeding a pre-selected threshold
(cnfapsln).
Table 28-2 APS Alarms (continued)
Class Name Description