Chapter 4: Quality Of Service; Qos; Table 23: Qos - Allied Telesis IS230-10GP Reference Manual

Chapter 4
Quality of Service

QoS

Function
show qos
show qos queueing
show qos interfaces
IF_PORTS
show qos map [(cos-
queue|dscp-
queue|precedence-
queue|queue-
cos|queue-dscp|queue-
precedence)]
[no] qos
qos queue strict-
priority-num <0-8>
The Quality of Service function allows the switch to implement congestion-
management and congestion-avoidance of the Ethernet traffic based on
the prioritization values in Layer 2 frames. Implementing QoS in the
network makes performance predictable and bandwidth utilization much
more effective.
The following feature commands are included in this chapter:
"QoS"

"Rate Limit" on page 55

The switch supports eight CoS queues for each egress port. For each of
the eight queues, two types of scheduling can be configured: Strict Priority
and non-Strict Priority (Weighted Round Robin). Mapping for CoS, DSCP
and IP precedence is available on a port by port basis.
Table 23. QoS
Privilege
User EXEC Display QoS state.
User EXEC Display QoS queueing
state.
User EXEC Display QoS state by
interface.
User EXEC Display QoS map detail. switch# show qos map
Admin EXEC Enabled or disabled the
device to QoS mode.
Admin EXEC Specify the strict priority
queue number.
Description
switch# show qos
switch# show qos queueing
switch# show qos interface
gi1
switch# configure
switch(config)# qos
switch(config)# exit
switch# configure
switch(config)# qos queue
strict-priority-num 1
switch(config)# exit
Example
53