Specifications

8-44
Cisco ONS 15454 Installation and Operations Guide, R3.2
March 2002
Chapter 8 Performance Monitoring
Performance Monitoring for Optical Cards
PSD
For an active protection line in a 2-fiber BLSR, Protection Switching
Duration (PSD) is a count of the number of seconds that the protect line
is carrying working traffic following the failure of the working line. PSD
increments on the active protect line and PSD-W increments on the failed
working line.
Note 4-fiber BLSR is not supported on the OC-12 card; therefore, the
PSD-S, and PSD-R PMs do not increment.
PSC-W
For a working line in a 2-fiber BLSR, Protection Switching
Count-Working (PSC-W) is a count of the number of times traffic
switches away from the working capacity in the failed line and back to the
working capacity after the failure is cleared. PSC-W increments on the
failed working line and PSC increments on the active protect line.
PSD-W
For a working line in a 2-fiber BLSR, Protection Switching
Duration-Working (PSD-W) is a count of the number of seconds that
service was carried on the protection line. PSD-W increments on the
failed working line and PSD increments on the active protect line.
Table 8-42 Near-End SONET Path PMs for the OC-12 Card
Parameter Definition
Note
SONET path PMs will not count unless IPPM is enabled. For additional information, see the
“Enabling Intermediate-Path Performance Monitoring” section on page 8-10. The far-end
IPPM feature is not supported in Software R3.0, R3.1, or R3.2. However, SONET path PMs
can be monitored by logging into the far-end node directly.
STS CV-P
Near-End STS Path Coding Violations (CV-P) is a count of BIP errors
detected at the STS path layer (i.e., using the B3 byte). Up to eight BIP
errors can be detected per frame; each error increments the current CV-P
second register.
STS ES-P
Near-End STS Path Errored Seconds (ES-P) is a count of the seconds
when at least one STS path BIP error was detected. An AIS-P defect (or a
lower-layer, traffic-related, near-end defect) or an LOP-P defect can also
cause an STS ES-P.
STS FC-P
Near-End STS Path Failure Counts (FC-P) is a count of the number of
near-end STS path failure events. A failure event begins with an AIS-P
failure, an LOP-P failure, a UNEQ-P failure or a TIM-P failure is
declared, or if the STS PTE that is monitoring the path supports ERDI-P
for that path. The failure event ends when these failures are cleared.
Table 8-41 Near-End Line Layer PMs for the OC-12 Card (continued)
Parameter Definition