User Guide 634
Configuring QoS Class of Service Configuration
Minimum
Bandwidth
Specify the minimum guaranteed bandwidth for the desired queue. The valid
values are from 0 to 100 and 0 means Minimum Bandwidth is disabled. If the
queue bandwidth calculated according to the weight is smaller than the minimum
bandwidth, the switch will be forced to allocated the minimum bandwidth to the
queue, and the other queue will share the rest bandwidth based on the weight.
Note: Minimum Bandwidth is not available for T2600G-18TS.
Management
Type
Displays the Management Type for the queues. The switch supports Taildrop
mode. When the traffic exceeds the limit, the additional traffic will be dropped.
3) Click Apply.
Note:
With ACL Redirect feature, the switch maps all the packets that meet the configured ACL rules to the
new TC queue, regardless of the mapping relations configured in this section.
2.2 Using CLI
2.2.1 Configuring Port Priority
■ Configuring the Trust Mode and the port to 802.1p Mapping
Follow these steps to configure the trust mode and the port to 802.1p mapping:
Step 1 configure
Enter global configuration mode
Step 2 interface {fastEthernet
port
| range fastEthernet
port-list
| gigabitEthernet
port
| range
gigabitEthernet
port-list
| ten-gigabitEthernet
port
| range ten-gigabitEthernet
port-list
|
port-channel
port-channel-id
| range port-channel
port-channel-list
}
Enter interface configuration mode.
Step 3 qos trust mode {
untrust
|
dot1p
|
dscp
}
Select the trust mode for the port. By default, it is untrust. Here we set the trust mode as
untrust.
untrust:
Specify the ports’ trust mode as untrust. In this mode, the packets will be processed
according to the port priority configuration.
Step 4 qos port-priority
dot1p-priority
Specify the port to 802.1p priority mapping for the desired port. The ingress packets from
one port are first mapped to 802.1p priority based on the port to 802.1p mapping, then to TC
queues based on the 802.1p to queue mapping. The untagged packets from one port will be
added an 802.1p priority value according to the port to 802.1p mapping.
dot1p-priority:
Specify the 802.1p priority ranging from 0 to 7. The default value is 0.
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