Reference Guide

Quality of Service (QoS) | 721
• Setting dot1p Priorities for Incoming Traffic
• Configuring Port-based Rate Policing
• Configuring Port-based Rate Shaping
Setting dot1p Priorities for Incoming Traffic
Change the priority of incoming traffic on the interface using the command dot1p-priority from
INTERFACE mode, as shown in Figure 40-2. Dell Networking OS places traffic marked with a priority in
a queue based on Table 40-1. If you set a dot1p priority for a port-channel, all port-channel members are
configured with the same value. You cannot assign a dot1p value to an individual interfaces in a
port-channel. The S5000 distributes eight dot1p priorities across four data queues.
Figure 40-2. Configuring dot1p Priority on an Interface
Honoring dot1p Priorities on Ingress Traffic
By default Dell Networking OS does not honor dot1p priorities on ingress traffic. Use the command
service-class dynamic dot1p from INTERFACE mode to honor dot1p priorities on ingress traffic, as shown in
Figure 40-3. You can configure this feature on physical interfaces and port-channels, but you cannot
configure it on individual interfaces in a port channel.
Table 40-1. dot1p-priority values and queue numbers
dot1p
S5000 Queue
Number
01
10
20
31
42
52
63
73
Dell#config
Dell(conf)#interface tengigabitethernet 1/0
Dell(conf-if)#switchport
Dell(conf-if)#dot1p-priority 1
Dell(conf-if)#end
Dell#