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Configuring CoS Two-Level Hierarchical Scheduling for MPLS Pseudowire Subscriber Interfaces

Before configuring CoS parameters for MPLS pseudowire subscriber interfaces, you must first complete these tasks:

1. Configure the pseudowire logical interfaces. See Configuring a Pseudowire Subscriber Logical Interface.
2. Configure the pseudowire device count. See Configuring the Maximum Number of Pseudowire Logical Interface Devices Supported on the Router.
3. Configure the pseudowire device including the logical tunnel anchor point. See Configuring a Pseudowire Subscriber Logical Interface Device.
4. Configure the pseudowire transport logical interface. See Configuring the Transport Logical Interface for a Pseudowire Subscriber Logical Interface.
5. Configure the pseudowire signaling (either Layer 2 circuit signaling or Layer 2 VPN signaling). See Configuring Layer 2 Circuit Signaling for Pseudowire Subscriber Logical Interfaces or Configuring Layer 2 VPN Signaling for Pseudowire Subscriber Logical Interfaces.
6. Configure the pseudowire logical interfaces. See Configuring the Service Logical Interface for a Pseudowire Subscriber Logical Interface.

1. Configure the hierarchical scheduler for the physical interface used for the logical tunnel (anchor point). For two-level scheduling the hierarchical scheduler must be set to maximum-scheduler levels 2.
   [edit]user@host#edit interfaces ps ps-anchor-device-nameuser@host#set hierarchical-scheduler maximum-hierarchy-levels 2
2. Specify the traffic-control profile to use on the pseudowire logical interface.
   [edit class-of-service]user@host#edit interfaces ps ps-device-name user@host#edit unit logical-unit-numberuser@host#set output-traffic-control-profile profile-name
3. Configure the rewrite rule.

   The available rewrite rule types for pseudowire interfaces are dscp and inet-precedence.

   [edit class-of-service]user@host#edit interfaces ps ps-device-name user@host#edit unit logical-unit-numberuser@host#edit rewrite-rules (dscp | inet-precedence) rewrite-nameuser@host#edit forwarding-class class-nameuser@host#set loss-priority class-name code-point (alias | bits)
4. Configure the classifier.

   The available classifier types for pseudowire interfaces are dscp and inet-precedence.

   [edit class-of-service]user@host#edit interfaces ps ps-device-name user@host#edit unit logical-unit-numberuser@host#edit classifiers (dscp | inet-precedence) classifier-nameuser@host#edit forwarding-class class-nameuser@host#set loss-priority class-name code-points [aliases] [bit-patterns]
5. Apply the rewrite rule and classifier to the pseudowire interface.

   For the interface_name parameter, specify the pseudowire device name.

   [edit class-of-service interfaces interface_name unit logical-unit-number]user@host#set rewrite-rule (dscp | inet-precedence) (rewrite-name | default) protocol protocol-typesuser@host#set classifiers (dscp | inet-precedence) (classifier-name | default)