Sample QoS configuration on the 7210 SAS

Overview

Quality of service configuration for 7210 SAS devices is based on the NFM-P policy framework, and is similar to support for other Nokia devices. However, some configurations are specific to 7210 SAS devices. The NFM-P provides separate QoS policies for 7210 SAS NEs. See 7210 SAS QoS policies for more information.

Some 7210 SAS QoS settings are not configured within the policy framework. Instead, they are configured as device or port properties, or during SAP configuration. See Stages for more information.

For some 7210 SAS QoS policies and functions, device system resources must be appropriately allocated. See System resource profile and the NE documentation for more information about system resource allocation.

On supporting 7210 SAS NEs, you can configure QoS for self-generated traffic on routing instances and VPRN sites; see Self-generated traffic and QoS.

See the 7210 SAS OS Quality of Service Guides for more information about 7210 SAS QoS and QoS policies.

Stages

The following workflow provides an overview of the tasks required to configure QoS on 7210 SAS NEs. The required configurations vary, depending on the chassis type and network requirements. See the 7210 SAS OS Quality of Service Guides for more information about 7210 SAS QoS.

 
1 

Based on SLAs and network capacity, determine the bandwidth and line rate requirements for the NEs and services for which you are configuring QoS.

2 

Configure the required NE properties:

  1. Two WRED slopes; see To configure two WRED slopes on a 7210 SAS

  2. Frame-based accounting; see To configure frame-based accounting for QoS policies on a 7210 SAS

  3. System resource profile; see To configure the global system resource profile on a 7210 SAS or 7250 IXR or To configure a system resource profile policy for the 7210 SAS-R/T/Mxp, 7210 SAS-S/Sx, or 7210 SAS-S/Sx VC

  4. Port-based scheduling; see To configure port-based scheduling on the 7210 SAS

  5. Buffer management (port decommissioning); see To configure buffer management for the 7210 SAS

3 

Configure the required port properties:

  1. Port egress rate limiting; see To configure Ethernet ports

  2. DEI classification; see To configure Ethernet ports

  3. Egress scheduler mode (for the 7210 SAS-X); see To configure Ethernet ports

  4. SAP-based remarking (for the 7210 SAS-X); see To configure Ethernet ports .

4 

Configure and distribute the required QoS policies:

  1. 7210, 7250 and 1830 SAP access ingress; see To configure a 7210, 7250, and 1830 SAP Access Ingress policy

  2. 7210 and 1830 port access egress; see To configure a 7210 and 1830 port access egress policy

  3. 7210 SAP access egress; see To configure a 7210 SAP access egress policy

  4. 7210 and 1830 network; see To configure a 7210 and 1830 network policy

  5. 7210 and 1830 network queue; see To configure a 7210 and 1830 network queue policy

  6. 7210 and 1830 slope; see To configure a 7210 and 1830 slope policy

  7. 7210 and 7250 queue management; see To configure a 7210 and 7250 Queue Management policy

  8. 7210, 7250 and 1830 port scheduler; see To configure a 7210, 7250 and 1830 Port Scheduler policy

  9. 7210/7250 Dot1p classification; see To configure a 7210/7250 Dot1p classification policy

  10. 7210/7250 DSCP classification; see To configure a 7210/7250 DSCP classification policy

  11. 7210/7250 MPLS LSP-EXP classification; see To configure a 7210/7250 MPLS LSP-EXP classification policy

  12. 7210 remarking; see To configure a 7210 remarking policy

  13. 7210 MPLS LSP-Exp map; see To configure a 7210 MPLS LSP-EXP Mapping policy

  14. 7210 multipoint bandwidth management; see To configure a 7210 multipoint bandwidth management policy

5 

Assign QoS policies to network resources.

  1. Assign 7210/7250 Dot1p and DSCP classification policies to:

  2. Assign 7210/7250 MPLS LSP-EXP classification policies to network policies; see To configure a 7210 and 1830 network policy.

  3. Assign slope policies to queues configured in:

  4. Assign queue management policies to queues configured in:

  5. Assign remarking policies to:

  6. Assign MPLS LSP-Exp Map policies to network policies of network interface type; see To configure a 7210 and 1830 network policy .

  7. Assign SAP access ingress and SAP access egress policies to SAPs; see the relevant procedure, depending on the service type:

  8. Assign network policies to network interfaces; see To create an L3 network interface on a routing instance and  To configure L3 network interfaces .

  9. Assign port access egress, network, network queue, and port scheduler policies to ports; see To assign QoS policies to a 7210 SAS Ethernet port .

  10. Assign slope policies to buffer pools on ports; see To configure Ethernet ports .

  11. Assign multipoint bandwidth management policies to 7210 SAS-X NEs; see To configure a 7210 multipoint bandwidth management policy .

6 

Configure table-based color-aware ingress classification on supporting NEs; see Workflow to configure table-based DSCP ingress classification.

7 

Configure hierarchical ingress policing (H-metering) for access ingress meters:

  1. Configure a 7210, 7250 and 1830 SAP access ingress policy with all meters set to trTCM (RFC 4115); see To configure a 7210, 7250, and 1830 SAP Access Ingress policy .

  2. Assign the policy to L2 or L3 access interfaces and configure the aggregate rate limit parameters for ingress meters; see the relevant procedure, depending on the service type:
8 

Configure hierarchical ingress queues (ingress scheduling) for 7210 SAS-K and 7210 SAS-X NEs:

  1. Enable the Queues function in the system resource profile for the 7210 SAS-X NE; see To configure the global system resource profile on a 7210 SAS or 7250 IXR .

  2. Configure ingress queues in a 7210, 7250 and 1830 SAP access ingress policy; see To configure a 7210, 7250, and 1830 SAP Access Ingress policy .

  3. Assign the policy to access interfaces and configure the aggregate shaper rate parameters; see the relevant procedure, depending on the service type:
9 

Configure egress policing (egress meters) for SAPs on the 7210 SAS-D, 7210 SAS-M, 7210 SAS-R, 7210 SAS-S, 7210 SAS-Sx, and 7210 SAS-T:

  1. Enable the SAP Egress Aggregate Meter parameter in the global system resource profile for the NE; see To configure the global system resource profile on a 7210 SAS or 7250 IXR .

    For 7210 SAS-R NEs, enable the Egress SAP Aggregate Meter parameter in the system resource profile policy assigned to the device; see To configure a system resource profile policy for the 7210 SAS-R/T/Mxp, 7210 SAS-S/Sx, or 7210 SAS-S/Sx VC.

  2. For 7210 SAS-Mxp and 7210 SAS-R NEs, enable port-based scheduling; see To configure port-based scheduling on the 7210 SAS.

  3. Configure egress meters for access interfaces; see the relevant procedure, depending on the service type:
10 

Configure egress scheduling for 7210 SAS-K NEs.

  1. If required, configure port-level egress rate limiting; see To configure Ethernet ports .

  2. For SAP-based access egress scheduling, configure queues in a 7210 SAP access egress policy; see To configure a 7210 SAP access egress policy . Assign the policy to an L2 access interface; see the relevant procedure, depending on the service type:

  3. For network egress scheduling, configure queues in a 7210 and 1830 network queue policy; see To configure a 7210 and 1830 network queue policy . Assign the policy to ports; see To assign QoS policies to a 7210 SAS Ethernet port .

  4. Configure the aggregate rate limit values for SAPs; see the relevant procedure, depending on the service type:
11 

Configure egress scheduling for 7210 SAS-Mxp, 7210 SAS-R, and 7210 SAS-X NEs.

  1. If required, configure port-level egress rate limiting; see To configure Ethernet ports .

  2. For SAP-based access egress scheduling, configure queues in a 7210 SAP access egress policy; see To configure a 7210 SAP access egress policy . Assign the policy to L2 or L3 access interfaces; see the relevant procedure, depending on the service type:

  3. For port-based access egress scheduling on the 7210 SAS-Mxp and 7210 SAS-R, configure the QoS function in the system resource profile for the device; see To configure port-based scheduling on the 7210 SAS . Configure queues in a 7210 port access egress policy; see To configure a 7210 and 1830 port access egress policy .

  4. For network egress scheduling, configure queues in a 7210 and 1830 network queue policy; see To configure a 7210 and 1830 network queue policy . Assign the policy to ports; see To assign QoS policies to a 7210 SAS Ethernet port .

  5. For access ports on the 7210 SAS-X, configure the Egress Scheduler Mode parameter for FC-based or SAP-based scheduling; see To configure Ethernet ports .

  6. Configure the aggregate rate limit values for SAPs; see the relevant procedure, depending on the service type:
12 

Configure overrides for access ingress meters, as required; see To configure QoS policy overrides on access ingress meters for the 7210 SAS .

13 

Configure overrides for access ingress queues, as required; see To configure QoS policy overrides on access ingress queues for a 7210 SAS-X .

14 

Configure overrides for port access egress queues, as required; see To configure QoS policy overrides on port access egress queues for a 7210 SAS.

15 

For the 7210 SAS-K, preserve ingress dot1p values for egress traffic on L2 interfaces; see the relevant procedure, depending on the service type: