Инструкции По Установке для 3com S7906E
8
You can enable high-priority packet buffering for multiple ONUs, and the OLT will reserve an
independent buffer for each ONU.
Follow these steps to configure rate limiting:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter OLT port view
interface interface-type interface-number
—
Configure the priority
threshold and enable
high-priority packet buffering
threshold and enable
high-priority packet buffering
bandwidth downstream priority-queue
priority high-priority-reserved value
priority high-priority-reserved value
Required
The downlink
packets on an OLT
port are considered
high-priority only if
their priority is
greater then or
equal to the priority
value.
packets on an OLT
port are considered
high-priority only if
their priority is
greater then or
equal to the priority
value.
The value
argument is in
bytes.
argument is in
bytes.
By default, no
buffer is reserved
for high-priority
packets.
buffer is reserved
for high-priority
packets.
Return to system view
quit
—
Enter ONU port view
interface interface-type interface-number
—
Reserve high-priority buffer
for the current ONU
for the current ONU
bandwidth downstream high-priority
enable
enable
Optional
By default, the OLT
reserves no
high-priority buffer
for an ONU.
reserves no
high-priority buffer
for an ONU.
High-priority packet buffering takes effect for downlink traffic only when downlink bandwidth allocation
policy is enabled (as shown in
Assign downlink bandwidth for an ONU
When an S7900E works as an OLT in an EPON system, you can limit the rate at which the OLT port
sends traffic to each ONU, that is, assign downlink bandwidth to each ONU. This function includes two
configurations:
z
Enabling the downlink bandwidth allocation policy.
z
Configuring the ONU downlink bandwidth range, including the maximum bandwidth and the
maximum burst buffer.
Follow these steps to configure the ONU bandwidth allocation and related parameters: