Common to connectivity services on 7210 SAS-D and 7210 SAS-Dxp platforms are policies assigned to the service. Policies are defined at a global level, then applied to a service on the router. Policies are used to define 7210 SAS-series service enhancements. The following types of policies are common to all 7210 SAS-series connectivity services:
SAP Quality of Service (QoS) policies allow different classes of traffic within a service at SAP ingress. Access egress QoS policies allow differential treatment of various traffic classes within a service (SAPs) which exists in an egress port.
QoS ingress and egress policies determine the QoS characteristics for a SAP. A QoS ingress policy applied to a SAP specifies the number of meters, meter characteristics (such as forwarding class, committed, and peak information rates, and so on) and the mapping of traffic to a forwarding class. A QoS egress policy defines the queue characteristics (such as CBS, CIR, PIR). A QoS policy must be created before it can be applied to a SAP. A single ingress QoS policy can be associated with a SAP. A single access egress QoS policy can be associated with a port.
Filter policies allow selective blocking of traffic matching criteria from ingressing or egressing a SAP.
Filter policies, also referred to as access control lists (ACLs), control the traffic allowed in or out of a SAP based on MAC or IP match criteria. Associating a filter policy on a SAP is optional. Filter policies are identified by a unique filter policy ID. A filter policy must be created before it can be applied to a SAP. A single ingress and single egress filter policy can be associated with a SAP.
Scheduler policies define the operating parameters (such as scheduling algorithm, weights per priority). Depending on the platform, these are either associated with SAPs or physical ports.
Accounting policies define how to count the traffic usage for a service for billing purposes.
The routers provide a comprehensive set of service-related counters. Accounting data can be collected on a per-service, per-forwarding class basis that enables network operators to accurately measure network usage and bill each customer for each individual service using any of several billing models.