To configure a 7210 SAP access egress policy

Purpose

A 7210 SAP access egress policy defines remarking and SAP egress queue parameters for traffic egressing the switch into a service.

For packets, the policy defines SAP-based remarking values using an assigned 7210 remarking policy.

For SAP-based egress queues, the policy defines:

  • rate parameters

  • scheduling priority values and weights

  • slope parameters and burst size values, using an assigned queue management policy or slope policy

Egress queues are mapped to forwarding classes. For 7210 SAS-Mxp, 7210 SAS-R, and 7210 SAS-X devices, the mapping is static and not user-configurable. The mapping for these devices is not displayed in the NFM-P. The following table shows the system-defined mapping.

Table 50-8: 7210 SAS system-defined FC-to-queue mapping

Forwarding class

Queue ID

nc

8

h1

7

ef

6

h2

5

l1

4

af

3

l2

2

be

1

For the 7210 SAS-K, the FC-to-queue mapping is user-configurable. You must explicitly enable queues in policies distributed to the 7210 SAS-K, except for Queue 1 which is enabled by default. Only queues that are applicable are available for mapping to FCs.

The 7210 SAP access egress policy is assigned to L2 access interfaces on VPLS and VLL services, and to L3 access interfaces on IES and VPRN services. You can also assign the policy to destination L2 interfaces on mirror services. The 7210 SAP access egress policy is SAP-based, not port-based, and applies policy definitions only on the interfaces to which it is assigned. The policy is assigned to interfaces in the following procedures, according to the service type:

The NFM-P assigns a default 7210 SAP access egress policy to an interface unless a user-configured policy is explicitly assigned. The default policy (policy ID 1) cannot be altered or deleted.

The 7210 SAP access egress policy is supported on the 7210 SAS-K, 7210 SAS-Mxp, 7210 SAS-R, and 7210 SAS-X. 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. See the NE documentation for more information.

Note: For the 7210 SAS-Mxp, 7210 SAS-R, and 7210 SAS-X, access egress remarking is either SAP-based or port-based. L3 access egress remarking is always port-based. For the 7210 SAS-Mxp and 7210 SAS-R, L2 access egress remarking is always SAP-based.

For the 7210 SAS-X, to use the values configured in a 7210 SAP access egress policy for SAP-based remarking, you must enable the SAP QoS Marking parameter on the port properties form for access and hybrid ports; see To configure Ethernet ports .

See the NE documentation for more information.

Steps
 

Choose Policies→QoS→SROS QoS→Access Egress→7210 SAP Access Egress from the NFM-P main menu. The 7210 SAP Access Egress Policies form opens.


Click Create or choose a policy and click Properties. The 7210 SAP Access Egress Policy (Create|Edit) form opens.


Configure the required parameters.

For 7210 SAS-K NEs, you must enable the Remarking Policy Applicable parameter to apply the remarking policy selected in Step 4 , or a default remarking policy is applied.


Select a remarking policy in the Remarking Policy panel. See To configure a 7210 remarking policy for more information about 7210 remarking policies.


Configure SAP egress queues.

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

  2. Choose a queue and click Properties. The Queue, 7210 SAP Access Egress Policy form opens.

  3. Configure the required parameters on the General tab.

    The Port Parent panel contains scheduling parameters.

  4. Select a Queue Management Policy in the Queue Management Policy panel.

  5. Select a Slope Policy in the Slope Policy panel.

  6. Click on the CIR/PIR and Burst Size tabs and configure the required parameters.

  7. Save your changes and close the form.


Click on the Forwarding Classes tab.


Map FCs to queues.

  1. Click Create, or choose an FC from the list and click Properties. The Forwarding Class form opens.

  2. Configure the Forwarding Class parameter and select queues as required.

    Queues are available only when the Queue Applicable parameter is enabled for the queue.

  3. 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