Patton electronic 2160 user manual QoS, Queue Schedule

Model 2160 Series User Manual 5 • Console and Telnet configuration

QoS

Quality of Service (QoS) refers to both a network's ability to deliver data with minimum delay, and the net- working methods used to control the use of bandwidth. Without QoS, all traffic date is equally likely to be dropped when the network is congested. This can cause a reduction in network performance and mark the net- work inadequate for a time-critical application such as video-on-demand.

The qos command menu lists commands for managing traffic. Move the cursor “ >>” to qos in the setup menu and press Enter. The following menu displays:

>> mode	Trigger Quality of Service function
qSchdl	Modify queue schedule type
qweight	Modify queue weight
q0GrssRt	Modify queue 0 egress rate
q1GrssRt	Modify queue 1	egress rate
q2GrssRt	Modify queue 2	egress rate
q3GrssRt	Modify queue 3	egress rate
portPri	Modify port priority
vlanTagPri	Modify VLAN TAG priority
ipDscpPri	Modify IP DSCP priority
list	Show QoS configuration

Mode

You can choose from three types of QoS: Port-Based, VLAN Tag, and IP DSCP. If you are not going to use the QoS function, set this option to Disable.

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Command: setup qos mode <DisablePortBasedVlanTagIpDscp>

Message: Please input the following information. Trigger qoS function (TAB Select) <Disable>:

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Table 21 shows the options available within the QoS mode command menu:

	Table 21. VLAN Mode Options
Menu	Options
QoS Mode	Disable Port-Based VLAN Tag IP DSCP

Queue Schedule

There are two types of queue schedule. Select from Type 1, Type 2 or Type 3. Table 22 explains the schedule types:

Table 22. Queue Schedule Types

Queue	0	1	2	3
Type 1	WRR	WRR	WRR	WRR
Type 2	BE	WFQ	WFQ	WFQ
Type 3	BE	WFQ	WFQ	SP

Setup Command Menu 82