Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 2 Congestion Management Configuration
Commands
3Com Corporation
2-16
Description
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.
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.
Related command: display interface and display qos wfq interface.
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
2.5 CBQ Configuration Commands
2.5.1 car
Syntax
car cir committed-information-rate [ cbs committed-burst-size ebs excess-burst-size ]
[ green action [ red action] ]
undo car
View
Traffic behavior view
Parameter