46 Rockwell Automation Publication 1783-UM001B-EN-P - May 2010
Chapter 4 Switch Management
QoS Setup
QoS (quality of service) provides for the classification of Ethernet traffic into
high and low priority queues. High priority packets are forwarded to their
destination address before a low priority packet.
Packets can be classified as high or low by MAC address, 802.1p priority tag,
and/or port ID.
WARNING: I/O devices do not support the QoS protocol.