AirLive Ether-FSH2422W - Manual (Page 37)

AirLive Ether-FSH2422W User’s Manual
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4-8-2 Class of Service Configuration
Class of Service (CoS) is a 3-bit field within a layer two Ethernet frame header using IEEE 802.1Q.
Class of Service (CoS) is a way of managing traffic in a network by grouping similar types of traffic (for
example, e-mail, streaming video, voice, large document file transfer) together and treating each type
as a class with its own level of service priority. Unlike Quality of Service (QoS) traffic management,
Class of Service technologies do not guarantee a level of service in terms of bandwidth and delivery
time; they offer a "best-effort."
„ Enable High Priority: When this check box is ticked, the packets passing through the
following ports will be serviced in accordance with the mode of Port-based or VLAN
Tag-based.
„ Port No: The label of each port.
„ Port Base: Tick this check box to apply the priority rule to the packets passing through the
ticked ports.
„ VLAN Tag: Tick this check box to apply the priority rule to the packets passing the ticked
ports by checking the 3-bit field within the frame header.