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    Configuring a Local Policy

    A local policy defines the QoS treatment to be applied at the system level or APN level for a Broadband Gateway. A local policy applied at the APN level takes priority over a local policy applied at the system level. A local policy defines traffic by classes and specifies the different levels of throughput and packet loss when congestion occurs.

    Before you begin, configure each of the following QoS features:

    • Bandwidth pool—limits the GBR bandwidth usage at the system level or APN level. The Broadband Gateway’s call admission control uses bandwidth pools to negotiate and reserve bandwidth.
    • Resource threshold profiles—limits CPU and memory usage. When the number of bearers or system load (memory, CPU, and queue depth) reaches a configured low or high threshold, only higher priority bearer requests are allowed.
    • Classifier profiles— defines the mapping of traffic classes (a traffic class or QCI) to a forwarding class and PLP. You can configure separate classifier profiles for home, roaming, and visitor subscriber traffic.
    • CoS Policy profiles—Configure separate CoS profiles for home, roaming, and visitor subscriber traffic.

    To configure a local policy:

    1. Specify a name for the local policy:
      [edit unified-edge cos-cac local-policies local-policy-2]
    2. Specify the classifier profiles to include in the local policy to define the mapping of each traffic class to a forwarding class and PLP.
      [edit unified-edge cos-cac local-policies local-policy-2]user@host# set classifier-profile home-classifier-profile-1 user@host# set roamer-classifier-profile roaming-classifier-profile-1 user@host# set visitor-classifier-profile visiting-classifier-profile-1
    3. Specify the CoS policy profiles to include in the local policy to define the QoS parameters for bearer setup and teardown.
      [edit unified-edge cos-cac local-policies local-policy-2]user@host# set policy-profile home-policy-profile-1 user@host# set roamer-policy-profile roaming-policy-profile-1 user@host# set visitor-policy-profile visiting-policy-profile-1
    4. Specify the resource threshold profile to include in the local policy to define admission control for managing system overload conditions:
      [edit unified-edge cos-cac local-policies local-policy-2]user@host# set resource-threshold-profiles resource-threshold--profile-1
    5. Specify a bandwidth pool for downlink traffic:
      [edit unified-edge cos-cac local-policies local-policy-2]user@host# set dl-bandwidth-pool bw-pool-downlink-1
    6. Specify a bandwidth pool for uplink traffic:
      [edit unified-edge cos-cac local-policies local-policy-2]user@host# set ul-bandwidth-pool bw-pool-uplink-1

    Published: 2011-06-14