Dba-Parameters; Display Epon-Capability Interface - 3Com S7906E Command Reference Manual

dba-parameters

Syntax
dba-parameters { discovery-frequency value | discovery-length value | cycle-length value } *
undo dba-parameters { discovery-frequency | discovery-length | cycle-length } *
View
OLT port view
Default Level
2: System level
Parameters
discovery-frequency value: Specifies the cycle for the OLT to send discovery GATE frames (the cycle
is known as grant cycle, which is measured in cycle-length). The value argument ranges from 25 to 100,
and defaults to 50 if you do not use the discovery-frequency keyword (that is, the OLT sends
discovery GATE frames every 50 cycle-lengths).
discovery-length value: Specifies the period in TQs for the OLT to discover ONUs. The value
argument ranges from 21845 to 87381 and defaults to 41500.
cycle-length value: Specifies the cycle-length in TQs (cycle-length is the measurement unit of grant
cycle). The value argument ranges from 32768 to 131070; it defaults to 65535 if you do not use the
cycle-length keyword.
1 time quantum (TQ) is equal to 16 ns, which is the time it takes to transmit two bytes of data at 1 Gbps.
Description
Use the dba-parameters command to specify the cycle for the OLT to send discovery frames to ONUs
and the period in TQs for the OLT to discover ONUs.
Use the undo dba-parameters command to restore the default DBA parameter values.
Use the two commands only when necessary.
Examples
# Configure OLT 3/0/1 to periodically send discovery GATE frames at the interval of 30 cycle-lengths.
<Sysname> system-view
[Sysname] interface olt 3/0/1
[Sysname-Olt3/0/1] dba-parameters discovery-frequency 30

display epon-capability interface

Syntax
display epon-capability interface interface-type interface-number
1-3