Alcatel-Lucent 7450 Quality Of Service Manual page 735

Ethernet service switch; service router; extensible routing system

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max maximum — Specifies the maximum percentage for the reserved CBS size of the pool. When

Service Ingress and Egress QoS Policy Commands

[no] sap-ingress policy-id

This command is used to create or edit the ingress policy. The ingress policy defines the Service Level

Agreement (SLA) enforcement service packets receive as they ingress a SAP. SLA enforcement is

accomplished through the definition of queues that have Forwarding Class (FC), Committed

Information Rate (CIR), Peak Information Rate (PIR) and Maximum Burst Size (MBS) characteristics.

The simplest policy defines a single queue that all ingress traffic flows through. Complex policies have

multiple queues combined with specific IP or MAC match criteria that indicate which queue a packet

will flow though.

Policies in effect are templates that can be applied to multiple services as long as the scope of the policy

is template. Queues defined in the policy are not instantiated until a policy is applied to a service SAP.

A SAP ingress policy is considered incomplete if it does not include definition of at least one queue

and does not specify the default action. The router software does not allow incomplete SAP ingress

policies to be applied to services.

SAP ingress policies can be defined with either IP headers as the match criteria or MAC headers as the

match criteria. The IP and MAC criteria are mutually exclusive and cannot be part of the same SAP

ingress policy.

It is possible that a SAP ingress policy will include the dscp map command, the dot1p map command

and an IP or MAC match criteria. When multiple matches occur for the traffic, the order of precedence

will be used to arrive at the final action. The order of precedence is as follows:

Quality of Service Guide

using the default value, the adaptive CBS sizing is disabled. To enable adaptive CBS sizing,

max value must be set to non-default value along with the step percent. When reserved CBS

is default adaptive CBS sizing cannot be enabled. The reserved CBS (Committed Burst Size)

defines the amount of buffer space within the pool that is not considered shared. Max reserved

CBS must not be more than the reserved CBS.

IP Quintuple or MAC headers