Cisco CiscoWork QoS Policy Manager 4.1.2 User Guide
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User Guide for QoS Policy Manager 3.0
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Chapter 6 Working with Policy Groups and Policies
Working with Policies
Understanding Policies
After you have defined a policy group or policy group template with device
constraints and QoS property definitions, you can add policies to it.
constraints and QoS property definitions, you can add policies to it.
Using QPM, you can create the following types of policies:
•
QoS policies—A QoS policy is a conditional statement that applies one or
more specified QoS actions to a packet if the packet satisfies the conditions
(filters) defined in the policy.
more specified QoS actions to a packet if the packet satisfies the conditions
(filters) defined in the policy.
•
Access control policies—An access control policy permits or denies the flow
of data if the data packet satisfies the conditions (filters) defined in the policy.
An access control policy does not have an associated QoS action.
of data if the data packet satisfies the conditions (filters) defined in the policy.
An access control policy does not have an associated QoS action.
Note
You cannot create access control policies on all Cisco devices.
The filter you create for a policy can be broad, in which case the policy is applied
to a high percentage of the traffic that travels through the device or interface, or it
can be very narrow and selective. When the device determines that a packet
satisfies the conditions of the policy, it applies the policy’s action to it.
to a high percentage of the traffic that travels through the device or interface, or it
can be very narrow and selective. When the device determines that a packet
satisfies the conditions of the policy, it applies the policy’s action to it.
In general, if there is more than one policy defined on the interface or device, the
device looks at the policies in order, top to bottom, until the first match is found,
at which point it applies the policy and ignores remaining policies. (If you are
creating an advanced policing policy, however, you can specify that additional
policies be considered after the device applies a matching policy.)
device looks at the policies in order, top to bottom, until the first match is found,
at which point it applies the policy and ignores remaining policies. (If you are
creating an advanced policing policy, however, you can specify that additional
policies be considered after the device applies a matching policy.)
When you define policies, QPM presents you with only actions and settings that
are valid for the device constraints and QoS properties defined for the policy
group.
are valid for the device constraints and QoS properties defined for the policy
group.
You can enable and disable policies without deleting them, and you can change
the order in which policies are checked on the interface.
the order in which policies are checked on the interface.
Related Topics
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