IronClad Quality of Service (QoS)
December 2000
11 - 13
NOTE:
Tagged packets also contain a priority value in the 802.1q tag. If you use the default priority for a VLAN,
a tagged packet that exits on that VLAN can be placed into a higher priority queue based on the port priority, the
priority in the 802.1q tag, and so on. If you do not want the device to make priority decisions based on 802.1q
tags, you can change the priority for 802.1q tags on a VLAN basis on Chassis devices. See “Reassigning 802.1p
Priorities to Different Queues” on page 11-14”.
USING THE CLI
To change the QoS priority of port-based VLAN 20 on a Chassis device to the premium queue (qosp3), enter the
following commands:
BigIron(config)# vlan 20
BigIron(config-vlan-20)# priority 7
BigIron(config-vlan-20)# write memory
Syntax:
[no] priority <num>
The <num> parameter can be from 0 – 7 and specifies the IEEE 802.1 equivalent to one of the four QoS queues.
To change the QoS priority of port-based VLAN 20 on a Stackable device to the high queue, enter the following
commands:
NetIron(config)# vlan 20
NetIron(config-vlan-20)# priority high
NetIron(config-vlan-20)# write memory
Syntax:
[no] priority high | normal
USING THE WEB MANAGEMENT INTERFACE
1.
Log on to the device using a valid user name and password for read-write access. The System configuration
dialog is displayed.
2.
Click on the plus sign next to Configure in the tree view to expand the list of configuration options.
3.
Click on the plus sign next to VLAN in the tree view to expand the list of VLAN option links.
4.
Click on the Port link to display the Port VLAN panel.
•
If you are adding a new port-based VLAN, click on the Add Port VLAN link to display the Port VLAN
configuration panel, as shown in the following example.
•
If you are modifying an existing port-based VLAN, click on the Modify button to the right of the row
describing the VLAN to display the Port VLAN configuration panel, as shown in the following example.
Summary of Contents for Switch and Router
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