Version 34.1.1 adds detailed Forward Error Correction (FEC) statistics for optical interfaces, to help diagnose marginal links, optics issues, and cabling problems.
Overview: FEC statistics provide visibility into the number of corrected and uncorrectable blocks detected on a port, and show which FEC clause is in use. Rising error counts indicate degrading optical signal quality before complete link failure occurs.
Available Statistics:
Corrected blocks
Uncorrectable blocks
FEC clause
The FEC statistics are added to the output of the existing show ports forward-error-correction command.
View FEC status and statistics:
show ports port_list forward-error-correction [no-refresh]
All platforms with optical interfaces supporting FEC.