Alcatel-Lucent 6850-48 Network Guide

Page of 1162
Configuring Global QoS Parameters
Configuring QoS
page 40-22
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
Classifying Bridged Traffic as Layer 3
In some network configurations you may want to force the switch to classify bridged traffic as routed 
(Layer 3) traffic. Typically this option is used for QoS filtering. See 
 for 
more information about filtering. 
The Layer 3 classification of bridged traffic is no different from the classification of normal Layer 3 routed 
traffic. Note that this implementation of QoS always performs Layer 3 classification of bridged traffic; it is 
not an option. As a result, 
• Layer 3 ACLs are always effected on bridged traffic.
• The switch may bridge and route traffic to the same destination.
• Bridged IP packets are prioritized based on ToS, not 802.1p.
Note that Layer 3 ACLs are effected on bridged IP traffic and Layer 2 ACLs are effected on routed traffic.