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Configuring Virtual LAN Queuing and Shaping on PTX Series Routers

You can enable virtual LAN (VLAN) queuing on 100-Gigabit Ethernet interfaces on PTX Series Packet Transport Routers and specify a traffic-shaping rate for each VLAN. In conjunction, you can also configure other class-of-service (CoS) features, including classifiers, schedulers, and rewrite rules.

  • Only 100-Gigabit Ethernet interfaces are supported.

  • You can configure a maximum of 10 VLANs on each interface.

  • The maximum shaping rate cannot exceed 100 Gbps for all VLANs configured on an interface.

  • Aggregated Ethernet interfaces are not supported.

  • The interface wildcard character (*) is not supported—for example, the following configuration is not supported and should not be used:

To configure per-VLAN queuing and traffic shaping on PTX Series routers:

  1. Enable the reception and transmission of 8021.q VLAN-tagged frames on the interface:
  2. Configure logical interface properties.
    1. Specify a VLAN identifier for each logical interface:
      Note:

      You can specify a maximum of 10 VLAN identifiers for each physical interface.

    2. Specify a protocol family and IP address for each logical interface:
  3. Enable per-VLAN queuing on the interface:
  4. Configure per-VLAN traffic shaping by specifying the amount of bandwidth to be allocated to each logical interface:
    Note:

    The shaping rate for all VLANs cannot exceed 100 percent of the bandwidth available on the interface (100 Gbps).

  5. (Optional) Configure one or more classifiers and apply them to the logical interface.
    1. Define one or more behavior aggregate (BA) classifiers:
    2. Define one or more forwarding classes for each classifier:
    3. Apply one or more classifiers to the logical interface:
  6. (Optional) Configure one or more rewrite rules to set CoS bits on outgoing packets.
    1. Define one or more rewrite rules:
    2. Define one or more forwarding classes for each rewrite rule:
    3. Apply one or more rewrite rules to the logical interface for outgoing traffic:
  7. (Optional) Configure one or more scheduler maps and apply them to the logical interface, that is, VLAN. Use a scheduler map to associate the properties of the output queues you define in schedulers with forwarding classes.
    1. Specify the name of a scheduler map:
    2. Specify the name of a forwarding class to associate with the scheduler map:
    3. Specify the name of a scheduler configured at the [edit class-of-service schedulers scheduler-name] hierarchy level to associate with the scheduler map:
    4. Apply the scheduler map to the logical interface, that is, VLAN: