Dell S3048-ON, Configuration Manual

Page: 638 / 1036

Table 55. dot1p-priority Values and Queue Numbers
dot1p Queue Number
0 0
1 0
2 0
3 1
4 2
5 3
6 3
7 3
• Change the priority of incoming traffic on the interface.
dot1p-priority
Example of Configuring a dot1p Priority on an Interface
Dell#configure terminal
Dell(conf)#interface gigabitethernet 1/1
Dell(conf-if-gi-1/1)#switchport
Dell(conf-if-gi-1/1)#dot1p-priority 1
Dell(conf-if-gi-1/1)#end
Honoring dot1p Priorities on Ingress Traffic
By default, Dell Networking OS does not honor dot1p priorities on ingress traffic.
You can configure this feature on physical interfaces and port-channels, but you cannot configure it on individual interfaces in a port
channel.
You can configure service-class dynamic dot1p from CONFIGURATION mode, which applies the configuration to all interfaces. A
CONFIGURATION mode service-class dynamic dot1p entry supersedes any INTERFACE entries. For more information, refer to
Mapping
dot1p Values to Service Queues .
NOTE: You cannot configure
service-policy input
and
service-class dynamic dot1p
on the same interface.
• Honor dot1p priorities on ingress traffic.
INTERFACE mode
service-class dynamic dot1p
Example of Configuring an Interface to Honor dot1p Priorities on Ingress Traffic
Dell#configure terminal
Dell(conf)#interface gigabitethernet 1/1
Dell(conf-if-gi-1/1)#service-class dynamic dot1p
Dell(conf-if-gi-1/1)#end
Priority-Tagged Frames on the Default VLAN
Priority-tagged frames are 802.1Q tagged frames with VLAN ID 0. For VLAN classification, these packets are treated as untagged.
However, the dot1p value is still honored when you configure
service-class dynamic dot1p
or
trust dot1p
.
638 Quality of Service (QoS)