Nortel Networks OPTera Metro 3500 - Manual (Page 143)

Operation, administration, and maintenance (OAM) features 2-105
Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
SES-LFE Severely errored
seconds, line • SONET: Count of one second intervals with
FEBE-L >=K (where K is 154 for OC-3, 615 for
OC-12, 2459 for OC-48, 9835 for OC-192) or
RDI-L >= 1
UAS-L
UAS-LFE Unavailable seconds,
line
Unavailable seconds,
Line, far-end • SONET: Count of the seconds during which the
Line was considered unavailable
FC-L Failure count, line • SONET: Count of near-end line failure (AIS-L)
events
FC-LFE Failure count, line
far-end • SONET: Count of far-end line failure (RFI-L)
events
Path
CV-P Coding violations, path • SONET: Count of BIP-8 errors (B3 byte)
• DS3x3 / DS3x12e: Count of P-bit parity errors
C-bit application not supported, receive and
transmit
• DS3x12: Count of P-bit parity errors C-bit
application not supported, transmit only
• DS1-SF: Count of Frame synchronization bit
errors (FE), receive and transmit
• DS1-ESF: Count of CRC-errors, receive and
transmit
CSS-P Controlled slip
seconds, path • DS1: Count of one second PRM intervals with
LV=1 in the PRM, receive and transmit
CV-PFE Coding violations,
path, far-end • SONET: Count of FEBE-P (bits 1-4 in G1 byte)
• DS1: ESF: 0, 1, 5, 10, 100, 319, or 333 based
on G1-G6 bit value in the PRM, receive and
transmit
Table 2-22 (continued)
Performance monitoring parameter definitions
Parameters Definitions