Display Fiber-Backup Group - 3Com S7906E Command Reference Manual

To display the statistics of an OLT, make sure the OLT is up.
To display the statistics of an ONU, make sure the ONU is online.
This command displays the average error rate, instead of the accumulated error rate, within a
sampling interval. An error rate value less than 1e-9 is displayed as 0.
Examples
# Display the statistics of an OLT port.
<Sysname> display epon statistics interface olt 3/0/1
OLT statistics:
PON Bit error rate(in 1e-9 unit): 0
CNI Bit error rate(in 1e-9 unit): 0
# Display the statistics of an ONU port.
<Sysname> display epon statistics interface onu 3/0/1:1
ONU statistics:
Bit error rate(in 1e-9 unit)
Frame error rate(in 1e-9 unit): 0
Table 1-7 display epon statistics interface command output description
PON Bit error rate(in 1e-9 unit)
CNI Bit error rate(in 1e-9 unit)

display fiber-backup group

Syntax
display fiber-backup group { all | group-number }
View
Any view
Default Level
2: System level
Parameters
all: Specifies all the fiber backup groups.
group-number: Fiber backup group number, in the range 1 to 80.
: 0
Field
1-11
Description
PON Bit error rate
Core Network Interface (CNI) Bit error rate. The
CNI is the interface between the OLT chip and
switching chip of the S7900E switch.