To modify a shared-queue policy

Purpose

You cannot create shared-queue policies. Instead, you modify the existing default policy (default or policer-output-queues). Modification of shared-queue policies is supported on the 7750 SR and 7450 ESS.

The default behavior automatically chooses the expedited or non-expedited nature of the queue based on the forwarding classes mapped to it. As long as all forwarding classes mapped to the queue are expedited (nc, ef, h1 or h2), the queue is treated as an expedited queue by the hardware schedulers. When any non-expedited forwarding classes are mapped to the queue (be, af, l1 or l2), the queue is treated as best effort (be) by the hardware schedulers.

Steps
 
1 

Choose Policies→QoS→SROS QoS→Shared Queue from the NFM-P main menu. The Shared Queue Policies form opens.

2 

Choose Local or Global from the Policy scope drop-down menu. When you choose Local, you can specify the Local Node IP Address parameter and choose a device by clicking Select and selecting a device in the list.

3 

Choose a policy in the list and click Properties. The Shared Queue Policy (Edit) form opens with the General tab displayed.

4 

Configure the Description parameter.

5 

Click on the Queues tab.

The following table lists the queue IDs that are used by the NFM-P to identify the shared queue types.

Table 50-10: Shared queue types

Shared queue ID

Shared queue type

1 to 8

Unicast

9 to 16

Multicast

17 to 25

Broadcast

26 to 32

Unknown

There are 32 default queues displayed on the form. Configure the queues as required. Only 16 queues are available for the policer-output-queues policy.

  1. Double-click on a queue in the list. The Queue configuration form opens with the General tab displayed.

  2. Configure the Expedite and Pool Name parameters.

    Note:

    Before you can configure the Pool Name parameter, you must create a Q1 pool; see To configure Q1 pools .

  3. Click on the CIR/PIR/FIR and Burst Size tables and configure the parameters.

  4. Save your changes.

6 

Click on the Forwarding Classes tab.

Default objects based on the eight forwarding classes are displayed on the form. You cannot associate different forwarding classes with the shared queues.

7 

Select a forwarding class and click Properties. The Forwarding Class, Local Policy (Edit) form opens.

You can only configure a forwarding class if you chose Local in Step 2 .

8 

Configure the required parameters and click OK.

9 

Click on the L2 Interfaces or L3 Interfaces tab. (Applies to default shared queue policy only.)

10 

Select an interface in the list and click Properties. The L2 or L3 Access Interface form opens with the General tab displayed.

11 

Click on the QoS tab and configure the Use Multipoint Shared Queue parameter. (Applies to default shared queue policy only.)

12 

Click OK. The Shared Queue Policy form reappears.

13 

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