To configure a 7250 SROS VLAN QoS policy

Purpose

A 7250 SROS VLAN QoS policy defines queue parameters for VLAN egress queues. The policy allows configuration of CIR weight profiles, CIR/PIR values, and the assignment of 7250 SROS Queue Management policies.

The 7250 SROS VLAN QoS policy also allows viewing of the mapping of forwarding classes to queues. FCs are mapped to queues by default; the mapping is not user-configurable.

The 7250 SROS VLAN QoS policy allows the enabling or disabling of VOQ (Virtual Output Queue) statistics collection, for supporting 7250 IXR chassis types. Statistics collection is enabled using the Stat Mode parameter.

For supporting NEs, the policy allows configuration of a Packet Byte Offset value. See the NE documentation for more information about PBO on the 7250 IXR.

The 7250 SROS VLAN QoS policy is assigned to L2 access interfaces on VPLS and VLL services, to L3 access interfaces on IES and VPRN services, and to network interfaces. See the following procedures:

7250 SROS VLAN QoS policies are identified by the policy name; policy ID numbers are not used.

A default 7250 VLAN QoS policy is applied if no user-configured policy is explicitly used. The default policy cannot be deleted or modified.

The 7250 IXR supports 7250 SROS VLAN QoS policies. For more information about QoS policy support on the 7250 IXR, see 7250 IXR QoS policies.

Support for specific parameters and features varies, depending on the chassis type. Local definitions of the policy do not necessarily support all configurations in the global policy.

Steps
 

Choose Policies→QoS→SROS QoS→Slope→7250 SROS VLAN QoS from the NFM-P main menu. The 7250 SROS VLAN QoS form opens.


Click Create, or choose a policy and click Properties. The 7250 SROS VLAN QoS Policy (Create|Edit) form opens.


Configure the required parameters on the General tab.

For supporting NEs, you can configure the Packet Byte Offset parameter when QoS Packet Byte Offset is globally enabled in NE properties; see To globally enable or disable Packet Byte Offset on a 7250 IXR.


Configure CIR weight profiles.

CIR weight profiles configured in this step are used during CIR configuration in Step 6.

  1. Click on the CIR Weight Profiles tab, choose a profile from the list, and click Properties. The VLAN QoS CIR Weight Profile, Site form opens.

  2. Configure the parameters.

  3. Save your changes and close the form.


Click on the Forwarding Classes tab to view the mapping of FCs to queues. The mapping is not user-configurable.


Configure queues.

  1. Click on the Queues tab. Eight default queues are displayed.

  2. Choose a queue and click Properties. The VLAN QoS Queue form opens.

  3. Configure the required parameters on the General tab.

  4. Select a 7250 SROS Queue Management policy in the Queue Management policy panel. For information about 7250 SROS Queue Management policies, see To configure a 7250 SROS Queue Management policy.

  5. Click on the CIR/PIR tab and configure the required parameters.

    CIR weight profiles selected in this step are configured in Step 4.

  6. Save your changes and close the form.


Click OK to save the policy and close the form, or click Apply to save the policy. See To release and distribute a policy to distribute the policy to NEs.

End of steps