Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 409
53-1002269-02
QoS queues
15
The following sections describe how to change the priority for each of the items listed above.
Although it is possible for a packet to qualify for an adjusted QoS priority based on more than one of
the criteria listed In the section above, the system always gives a packet the highest priority for
which it qualifies. Thus, if a packet is entitled to the premium queue because of its IP source and
destination addresses, but is entitled only to the high queue because of its incoming port, the
system places the packet in the premium queue on the outgoing port.
When you apply a QoS priority to one of the items listed above, you specify a number from 0 – 7.
The priority number specifies the IEEE 802.1 equivalent to one of the eight QoS queues on devices.
The numbers correspond to the queues as shown in Table 58.
Changing a port priority
To change the QoS priority of port 1 to the premium queue (qosp7), enter the following commands.
PowerConnect(config)#interface ethernet 1
PowerConnect(config-if-e10000-1)#priority 7
The device will assign priority 7 to untagged switched traffic received on port 1.
Syntax: [no] priority <num>
The <num> parameter can be from 0 – 7 and specifies the IEEE 802.1 equivalent to one of eight
QoS queues listed in Table 58.
Assigning static MAC entries to priority queues
By default, all MAC entries are in the best effort queue. When you configure a static MAC entry, you
can assign the entry to a higher QoS level.
To configure a static MAC entry and assign the entry to the premium queue, enter commands such
as the following.
PowerConnect(config)#vlan 9
PowerConnect(config-vlan-9)#static-mac-address 1145.1163.67FF ethernet 1 priority
7
PowerConnect(config-vlan-9)#write memory
Syntax: [no] static-mac-address <mac-addr> ethernet <portnum> [priority <num>]
[host-type | router-type | fixed-host]
The priority <num> parameter can be from 0 – 7 and specifies the IEEE 802.1 equivalent to one of
the eight QoS queues.
NOTE
The location of the static-mac-address command in the CLI depends on whether you configure
port-based VLANs on the device. If the device does not have more than one port-based VLAN (VLAN
1, which is the default VLAN containing all ports), the static-mac-address command is at the global
CONFIG level of the CLI. If the device has more than one port-based VLAN, then the
static-mac-address command is not available at the global CONFIG level. In this case, the command
is available at the configuration level for each port-based VLAN.