User`s manual

NPort S8000 Series Switch Featured Functions
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QoS Classification
The NPort S8000 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
Weighted Fair The NPort S8000 has 4 priority queues. In the weighted fair
scheme, an 8, 4, 2, 1 weighting is appli
ed 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 frames but ensures all high priority frames to egress the
switch as soon as possible.
Inspect TOS
Setting Description Factory Default
Enable/Disable Select the option
to enable the NPort S8000 to inspect the Type
of Service (TOS) bits in IPV4 frame to determine the priority of
each frame.
Enable
Inspect COS
Setting Description Factory Default
Enable/Disable Select the option to enable the NPort S8000 to inspect the
802.1p COS tag in the MAC frame to determine the priority of
each frame.
Enable
Port Priority
Setting Description Factory Default
Numerical value
selected by user ( from
0 to 7)
Increase this port’s priority as a node on the 802.1d priority
queue. The higher number the higher priority.
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