Allied Telesis AT-S29 - Manual (Page 97)

AT-S29 Management Software User’s Guide
97
Priority
IEEE 802.1p defines up to eight separate traffic classes. This switch
supports Quality of Service (QoS) by using two priority queues, with
weighted fair queuing for each port. You can use the Priority menu to
configure the default priority for each port, or to display the mapping for
the traffic classes as described in the following sections.
Port Priority
Configuration
The default priority for all ingress ports is zero. Therefore, any inbound
frames that do not have priority tags will be placed in the low priority
output queue. Default priority is only used to determine the output
queue for the current port; no priority tag is actually added to the frame.
You can use the Port Priority Configuration screen to adjust the default
priority for any port as shown below:
Parameter Description
Port Numeric identifier for switch port.
Default Ingress
User Priority Default priority can be set to any value from 0-7,
where 0-3 specifies the low priority queue and 4-
7 specifies the high priority queue.
Number of Egress
Traffic Classes Indicates that this switch supports two priority
output queues.
Port
Default Ingress User Number of Egress
Priority Traffic Classes
1
2
3
4
5
0
0
0
0
0
2
2
2
2
2