User manual

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Cooper Bussmann 2080E-T Managed Ethernet Switch User Manual
57Rev Version 1.0
QoS Mode Select from the following modes, or select “Disable” to turn off QoS.
• Port Based—The output priority is determined by the ingress port.
• COS Only—The output priority is determined by COS (Class of Service) only.
• TOS Only—The output priority is determined by TOS (Type of Service) only.
• COS First—The output priority is determined by COS and TOS, but COS first.
• TOS First— The output priority is determined by COS and TOS, but TOS first.
QoS Policy Select the QoS policy rule:
Using the 8,4,2,1 weight fair queue scheme—The switch will follow 8:4:2:1 rate to
process priority queue from the highest to the lowest queue. For example, 8 high
queue packets, 4 middle queue packets, 2 low queue packets, and 1 lowest queue
packet are all transmitted at the same time, in accordance with the 8, 4, 2, 1 policy
rule.
Use a strict priority scheme—The switch will always process packets in the higher
queue first, until the higher queue is empty.
Apply Click to apply the settings.
Port Priority
When the QoS Mode on the QoS - Global Settings page is set to “Port Based,” you can set the queuing policy for
each port.
To display the QoS Port Priority page, choose Configure-->QoS-->Port Priority.
Figure 59 Port Priority
Priority Select from four priority levels: High, Middle, Low, or Lowest.
Apply Click to apply the settings.
COS Mapping to Queue
When QoS Mode field on the QoS Global Settings page is set to “COS Only” or “COS First,” you can set the COS
queuing policy for each port.
To set up COS mapping to queue, choose Configure-->QoS-->CoS Mapping to Queue.