User`s manual

Moxa E Series Managed Ethernet Switch Featured Functions
3-42
Type 1
The Moxa switch supports inspection of layer 3 TOS and/or layer 2 CoS tag information to determine how to
classify traffic packets.
Queuing Mechanism
Setting Description Factory Default
Weight Fair The Moxa switch has 4 priority queues. In the weight fair
scheme,
an 8, 4, 2, 1 weighting is applied to the four priorities.
This approach prevents the lower priority frames from being
starved of opportunity for transmission with only a slight delay
to the higher priority frames.
Weight Fair
Strict In the Strict-priority scheme, all top-priority frames egress a
port until that priority’s queue is empty, and then the next
lower priority queue’s frames egress. This approach can cause
the lower priorities to be starved of opportunity for transmitting
any frame
s but ensures that all high priority frames will egress
the switch as soon as possible.
TOS Inspection
Setting Description Factory Default
Enable/Disable Enables or disables the Moxa switch for inspecting Type of
Service (TOS) bits in the IPV4 frame to determine the priority
of each frame.
Enabled
COS Overwriting
Setting Description Factory Default
Enable/Disable Enables or disables the Moxa switch for inspecting 802.1p COS
tags in the MAC frame to determine the priority of each frame.
Enabled
Priority
Setting Description Factory Default
Port priority The port priority has 4 priority queues. Low, normal, medium,
high priority queue option is applied to each port.
3(Normal)