H3C S7500 Series Ethernet Switches Operation Manual

Operation Manual – QoS
H3C S7500 Series Ethernet Switches Chapter 1
QoS Configuration
1-26
To do… Use the command… Remarks
Enter system view
system-view
—
Enter Ethernet port
view
interface interface-type
interface-number
—
Enter QoS view
qos
—
Configure parameters
for the RED algorithm
traffic-red outbound acl-rule
[ system-index ] qstart qstop
probability
Required
The maximum available
bandwidth must be no
smaller than the
minimum guaranteed
bandwidth.
Display the
parameters for the
RED algorithm
display qos-interface
[ interface-type
interface-number ] traffic-red
Display all the QoS
settings on the port
display qos-interface
[ interface-type
interface-number ] all
Optional
You can execute the
display command in
any view.
acl-rule: Applied ACL rules which can be the combination of various ACL rules. The
way of combination is described in
Table 1-10.
 Note:
z Only type-A LPUs support the configurations above.
z Only the permit rules in ACLs can be properly applied to the hardware.
1.10.3 Configuration Example
z A switch is connected to 10.1.1.1/24 network segment through its Ethernet 2/0/1
port.
z Perform RED queue scheduling for all the traffic from the network segment
10.1.1.1/24.
z Set the parameters as follows: the packets are dropped at random when the
queue length exceeds 64 Kbytes, all packets are dropped when the queue length
exceeds 128 Kbytes, and the drop probability is 20%.
Configuration procedure:
<H3C> system-view
[H3C] acl number 2000
[H3C-acl-basic-2000] rule permit source 10.1.1.1 0.0.0.255
[H3C-acl-basic-2000] quit