Specifications

8-49
Cisco ONS 15454 Installation and Operations Guide, R3.2
March 2002
Chapter 8 Performance Monitoring
Performance Monitoring for Optical Cards
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.
For a working line in a 4-fiber BLSR, PSC-W is a count of the number of
times service switches from a working line to a protection line plus the
number of times it switches back to the working line. PSC-W increments
on the failed line and PSC-R or PSC-S 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.
PSC-S
In a 4-fiber BLSR, Protection Switching Count-Span (PSC-S) is a count
of the number of times service switches from a working line to a
protection line plus the number of times it switches back to the working
line. A count is only incremented if span switching is used.
PSD-S
In a 4-fiber BLSR, Protection Switching Duration-Span (PSD-S) is a
count of the seconds that the protection line was used to carry service. A
count is only incremented if span switching is used.
PSC-R
In a 4-fiber BLSR, Protection Switching Count-Ring (PSC-R) is a count
of the number of times service switches from a working line to a
protection line plus the number of times it switches back to a working line.
A count is only incremented if ring switching is used.
PSD-R
In a 4-fiber BLSR, Protection Switching Duration-Ring (PSD-R) is a
count of the seconds that the protection line was used to carry service. A
count is only incremented if ring switching is used.
Table 8-48 Near-End SONET Path PMs for the OC-48 and OC-192 Cards
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.
Table 8-47 Near-End Line Layer PMs for the OC-48 and OC-192 Cards (continued)
Parameter Definition