Command Reference Guide

3Com Router 5000 Family and Router 6000 Family qos wfq ● 117
Command Reference
qos wfq
Purpose Use the qos wfq command to apply WFQ to and configure WFQ parameters on the
interface or modify WFQ parameters on the interface.
Use the
undo qos wfq command to restore the default congestion management
mechanism FIFO.
Syntax qos wfq [ precedence | dscp ] [ queue-length max-queue-length [
queue-number total-queue-number ] ]
undo qos wfq
Parameters precedence
Assigns bandwidth to queues by IP precedence. This is
the default setting.
dscp
Assigns bandwidth to queues by DSCP.
max-queue-length
Maximum queue length, or maximum number of
packets in each queue. It ranges from 1 to 1024 and
defaults to 64. Packets out of the range will be
discarded.
total-queue-number
Sum of queues. When IP precedence applies, available
numbers are 16, 32, 64, 128, 256, 512, 1024, 2048
and 4096. The default is 256. When DSCP applies,
available numbers are 64, 128, 256, 1024, 2048, and
4096. The default setting is 256 for the Router 6000
and 64 for the Router 5000.
Example Apply WFQ at the Ehernet6/0/0 interface, set the queue length to 100 and set the
total queue number to 512.
[3Com -Ethernet6/0/0] qos wfq queue-length 100 queue-number 512
View This command can be used in the following views:
■ Interface view
Description If the qos wfq command is configured without any parameters being specified,
traffic is classified based on IP quintuple and precedence.
CAUTION: Except for interfaces encapsulated with X.25 or LAPB, all physical
interfaces can use CQ.
You can apply WFQ to a dialer interface successfully only when default queuing is
configured on its physical interfaces. The configuration, however cannot update to its
physical interfaces immediately if they have connections with their respective
connected devices. Instead, the configuration updates to the physical interfaces the
next time they set up connections.