Cisco Systems 15454 15.2 Intermediate Path Performance Monitoring

15-3
Cisco ONS 15454 Reference Manual, R7.0
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Chapter 15 Performance Monitoring
15.2 15.2 Intermediate Path Performance Monitoring
Note Due to limitations of memory and the number of TCAs generated by different platforms, you can
manually add/modify the following two properties to the platform property file (CTC.INI for Windows
and .ctcrc for UNIX) to fit the need:ctc.15xxx.node.tr.lowater=yyy (where xxx is platform and yyy is
the number of the lowater mark. The default lowater mark is 25.)
ctc.15xxx.node.tr.hiwater=yyy (where xxx is platform and yyy is the number of the hiwater mark. The
default hiwater mark is 50.)
If the number of the incoming TCA is greater than the hiwater mark, it will keep the latest lowater mark
and discard older ones.
Change the threshold if the default value does not satisfy your error monitoring needs. For example,
customers with a critical DS-1 installed for 911 calls must guarantee the best quality of service on the
line; therefore, they lower all thresholds so that the slightest error raises a TCA.
15.2 Intermediate Path Performance Monitoring
Intermediate path performance monitoring (IPPM) allows transparent monitoring of a constituent
channel of an incoming transmission signal by a node that does not terminate that channel. Many large
networks only use line terminating equipment (LTE), not path terminating equipment (PTE). Table 15-2
shows ONS 15454 cards that are considered LTE.
ONS 15454 Software R3.0 and higher allows LTE cards to monitor near-end PM data on individual
synchronous transport signal (STS) payloads by enabling IPPM. After enabling IPPM provisioning on
the line card, service providers can monitor large amounts of STS traffic through intermediate nodes,
thus making troubleshooting and maintenance activities more efficient.
IPPM occurs only on STS paths that have IPPM enabled, and TCAs are raised only for PM parameters
on the IPPM enabled paths. The monitored IPPM parameters are STS CV-P, STS ES-P, STS SES-P,
STS UAS-P, and STS FC-P.
Table 15-2 ONS 15454 Line Terminating Equipment
ONS 15454 Electrical LTE
EC1-12 card
ONS 15454 Optical LTE
OC3 IR 4/STM1 SH 1310 OC3 IR/STM1 SH 1310-8
OC12 IR/STM4 SH1310 OC12 LR/STM4 LH1310
OC12 LR/STM4 LH 1550 OC12 IR/STM4 SH 1310-4
OC48 IR 13101
1. An OC-48 IR card used in a bidirectional line switched ring (BLSR) does not support IPPM during a protection switch.
OC48 LR 1550
OC48 IR/STM16 SH AS 13101OC48 LR/STM16 LH AS 1550
OC48 ELR/STM16 EH 100 GHz OC48 ELR 200 GHz
OC192 SR/STM64 IO 1310 OC192 IR/STM64 SH 1550
OC192 LR/STM64 LH 1550 OC192 LR/STM64 LH ITU 15xx.xx
TXP_MR_10G MXP_2.5G_10G
MXP_MR_2.5G MXPP_MR_2.5G