Specifications

Port Priority and Rate Limiting Configuration Command Set
Configuring Quality of Service (QoS)
8-12 SecureStack A2 Configuration Guide
8.3.3.2 set port txq
Use this command to set QoS transmit queue arbitration values for ports.
Eight transmit queues are implemented in the switch hardware for each port, but only six are
available for use in prioritizing various data and control traffic. The seventh and eighth queues are
reserved for stacking and network control related communications and cannot be configured.
Queues can be set for strict priority (SP) or weighted round-robin (WRR). If set for WRR mode,
weights may be assigned to those queues with this command. Weights are specified in the range of
0 to 100 percent. Weights specified for queues 0 through 5 on any port must total 100 percent.
Queues 0 through 5 can be changed to strict priority by configuring queues 0 through 4 at 0 percent
and queue 5 at 100 percent. Queues can be changed back to WRR by changing the weight of queues
0 through 5, or by issuing the clear port txq command.
set port txq port-string value0 value1 value2 value3 value4 value5
Syntax Description
Command Defaults
None.
Command Mode
Read-Write.
Examples
This example shows how to change the arbitration values for the six transmit queues belonging to
ge.1.1:
port-string Specifies port(s) on which to set queue arbitration values.
For a detailed description of possible port-string values,
refer to Section 3.1.1.
NOTE: Only physical ports can be configured with this
command. LAG ports cannot be configured.
value0 - value5 Specifies percentage to allocate to a specific transmit
queue. The values must total 100 percent.
A2(su)->set port txq ge.1.1 17 17 17 17 16 16