Command Reference Guide

3Com Router 5000 Family and Router 6000 Family qos lr ● 97
Command Reference
qos lr
Purpose Use the qos lr command to limit the transmitting rate of the interface.
Use the
undo qos lr command to remove the limit.
Syntax qos lr cir committed-information-rate [ cbs committed-burst-size [ ebs
excess-burst-size ] ]
undo qos lr
Parameters cir
committed-information-rate
CIR, in the range of 8000 to 155,000,000 bps.
cbs committed-burst-size
CBS, in the range of 15,000 to 155,000,000 bits.
When the CIR value is less than 30,000, the default
CBS value is 15,000; when the CIR value is greater
than 30,000, the default CBS value is half of the CIR
value.
ebs excess-burst-size
EBS, in the range of 0 to 155000000bits. By default,
excess-burst-size is 0. There is only one token
bucket is used to police.
Example Limit packet-forwarding rate of interface Ethernet6/0/0.
[3Com -Ethernet6/0/0] qos lr cir 38400 cbs 76800 ebs 0
View This command can be used in the following views:
■ Interface (including the MFR Interface) view
Description You can use this command on a tunnel interface to limit its interface rate and
implement congestion management along with other queue scheduling algorithms.
Before configuring queuing on the tunnel interface, you must configure the qos lr
command. Before deleting the
qos lr command on the interface, however, you
must delete the queuing configuration.