H3C S7500 Series Ethernet Switches Command Manual

Command Manual – QoS
H3C S7500 Series Ethernet Switches Chapter 1
QoS Commands
1-31
qstart: Queue length where the system starts to drop packets at random, in the range of
0 to 262,128 in kbyte. The packets in the queue whose length is less than the qstart
argument will not be dropped. The value must be the multiples of 16 KB.
qstop: Queue length where the system stops dropping packets at random, in the range
of 0 to 262,128 in kbyte. All the packets in the queue whose length is greater than the
qstop argument will be dropped. The value must be the multiples of 16 KB.
probability: Drop probability when the qstop argument is reached, in the range of 0% to
100%.
Description
Use the traffic-red command to enable the RED operation and set RED relevant
parameters.
Use the undo traffic-red command to remove the RED configuration.
Note that the qstop argument in this command must be no smaller than the qstart
argument.
Related command: display qos-interface traffic-red.
 Note:
z Only type-A LPUs support this command.
z Only the permit rule can be referenced in this command and applied to hardware.
Examples
# Perform the RED operation on the packets matching the permit rule in ACL 2000.
RED parameters can be set as follows: the qstart argument is 64 KB, the qstop
argument is 128 KB, and the probability argument is 20%.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] interface Ethernet2/0/1
[H3C-Ethernet2/0/1] qos
[H3C-qoss-Ethernet2/0/1] traffic-red outbound ip-group 2000 64 128 20
1.1.25 traffic-redirect
Syntax
traffic-redirect inbound acl-rule [ system-index ] { cpu | interface interface-type
interface-number }
undo traffic-redirect inbound acl-rule