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Seitenansicht 173
Chapter 14: Quality of Service
174 Section II: Advanced Operations
Remark Priority
Replaces the user priority value in the packets with the new value
specified in the Priority parameter, if set to Yes. If set to No, which is
the default, the packets retain their preexisting priority level when they
leave the switch.
ToS
Specifies a replacement value to write into the Type of Service (ToS)
field of IPv4 packets. The range is 0 to 7.
A ToS value can be set at all three levels: flow group, traffic class, and
policy. The ToS value in a flow group overrides the value specified at
the traffic class or policy level, while the ToS value in a traffic class
overrides the value in a policy.
Move ToS to Priority
Replaces the value in the 802.1p priority field with the value in the ToS
priority field on IPv4 packets. Options are:
yes Replaces the value in the 802.1p priority field with the value in
the ToS priority field on IPv4 packets.
no Does not replace the preexisting 802.1p priority level. This is the
default.
Move Priority to ToS
Replaces the value in the ToS priority field with the 802.1p priority field
on IPv4 packets. Options are:
yes Replaces the value in the ToS priority field with the 802.1p priority
field on IPv4 packets.
no Does not replace the ToS priority field. This is the default.
Flow Group List
Specifies the flow groups assigned to this traffic class. Use <Ctrl> click
to select more than one.
6. When you are finished configuring the parameters, click Apply.
The new traffic class is created on the switch.
7. To permanently save your changes, select the Save Config menu
selection.
Modifying a
Traffic Class
This procedure explains how to modify an existing traffic class. If the traffic
class to be modified is already part of a QoS policy assigned to one or
more switch ports, you must first modify the policy by removing the port
assignments before you can modify the traffic class. You can reassign the
ports back to the policy after you have finished modifying the traffic class.
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