Nortel Networks OPTera Metro 3500 - Manual (Page 142)

2-104 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
See Table 2-22 for a list of performance monitoring parameter definitions. For
a list of DS3 performance monitoring parameters supported on the DS3 circuit
packs, see
Table 2-23 . For a list of DS1 performance monitoring parameters
supported on the DS1 and DS3VTx12 circuit packs, see Table 2-24 .
Table 2-22
Performance monitoring parameter definitions
Parameters Definitions
Section
CV-S Coding violations,
section • SONET: Count of BIP-8 errors (B1) byte
ES-S Errored seconds,
section • SONET: Count of one second intervals with
BIP-8 errors (B1) >=1 or LOF >=1 or LOS >=1
SES-S Severely errored
seconds, section • SONET: Count of one second intervals with
BIP=8 errors (B1) >=K (where K is 155 for OC-3,
616 for OC-12, 2392 for OC-48, 8854 for
OC-192) or SEF >=1 or LOS >=1
SEFS-S Severely errored frame
seconds, section • SONET: Count of one second intervals with any
LOF >=1
Line
CV-L Coding violations, line • SONET: Count of BIP-8 errors (B2 byte)
• DS1 / DS3x3 / DS3x12 / DS3x12e: Count of
BPV + EXZ BPVs which are part of the B3ZS
code are not counted, receive only
CV-LFE Coding violations, line,
far-end • SONET: Count of FEBE-L (Bits 2-8 of Z2 byte of
STS-1 No. 3)
ES-L Errored seconds, line • SONET: Count of one second intervals with
BIP-8 errors (B2) >=1 or AIS-L >=1
• DS1 / DS3: Count of one second intervals with
(BPV + EXZ) >=1 or LOS >=1, receive only
ES-LFE Errored seconds, line,
far-end • SONET: Count of one second intervals with
FEBE-L >=1 or RDI-L >=1
• DS1-ESF: Count of one second PRM intervals
with LV=1 in the PRM, receive and transmit
SES-L Severely errored
seconds, line • SONET: Count of one second intervals with
BIP-8 errors (B2) >=K (where K is 154 for OC-3,
615 for OC-12, 2459 for OC48, 9835for
OC-192) or AIS-L >=1
• DS3: Count of one second intervals with (BPV +
EXZ) >=44 or LOS >=1, receive only
• DS1: Count of one second intervals with (BPV +
EXZ) >=1544 or LOS >=1, receive only