Service Policies; Services Overview - Alcatel-Lucent 7705 Service Manual

Service Policies

Common to all 7705 SAR connectivity services are policies that are assigned to the service.
Policies are defined at the global level, then applied to a service on the router. Policies are
used to define 7705 SAR service enhancements.
The types of policies that are common to all 7705 SAR connectivity services are SAP
Quality of Service (QoS) policies and accounting policies. IP filter policies are supported on
network interfaces, Epipes, Ipipes, VPRN SAPs, IES SAPs, and IES in-band management
SAPs.
For more information on provisioning QoS policies, including queuing behaviors, refer to
the 7705 SAR OS Quality of Service Guide. For information on configuring IP filter
policies, refer to the 7705 SAR OS Router Configuration Guide.
7705 SAR OS Services Guide
• SAP Quality of Service (QoS) policies allow for different classes of traffic within a
service at SAP ingress and SAP egress.
QoS ingress and egress policies determine the QoS characteristics for a SAP. A QoS
policy applied to a SAP specifies the number of queues, queue characteristics (such
as forwarding class, committed information rates, and peak information rates) and
the mapping of traffic to a forwarding class. A QoS policy must be created before it
can be applied to a SAP. A single ingress and a single egress QoS policy can be
associated with a SAP.
• Accounting policies define how to count the traffic usage for a service for billing
purposes.
The 7705 SAR routers provide a comprehensive set of service-related counters.
Accounting data can be collected on a per-service, per-forwarding class basis, which
enables network operators to accurately measure network usage and bill each
customer for each individual service using any of a number of different billing
models.
• IP filter policies allow selective blocking or forwarding of traffic that matches
criteria that is set in the policy. The action applies to traffic that enters from the
ingress direction of a SAP.
Filter policies, also referred to as access control lists (ACLs), control the traffic
allowed into an Ethernet or IP pseudowire, VPRN, or IES based on IP match
criteria. Assigning a filter policy to 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 filter policy can be associated with a SAP.

Services Overview

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