Feature History For Atm Qos; Attaching Atm Qos Service Policies; Atm Qos Inheritance - Cisco 10000 Series Configuration Manual

Attaching ATM QoS Service Policies

Each interface, subinterface, or PVC can have no more than two policy maps attached: one for inbound
traffic and one for outbound traffic. The router does not require that the inbound and outbound policies
be the same; you can attach different input and output policies.
Note In a Cisco 10000 series router, we recommend that you do not attach a service-policy to an interface that
has an IP interface session.
Attaching ATM QoS Service Policies
You can attach a QoS service policy to an ATM interface, point-to-point subinterface, or PVC using the
service-policy command.
This section describes the following topics:
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Feature History for ATM QoS

Cisco IOS Release
12.0(17)SL
12.2(15)BX
12.3(7)XI2
12.2(28)SB
12.2(31)SB2

ATM QoS Inheritance

The following describes how ATM traffic inherits QoS policies:
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Cisco 10000 Series Router Quality of Service Configuration Guide
4-2
Feature History for ATM QoS, page 4-2
ATM QoS Inheritance, page 4-2
service-policy Command, page 4-3
Restrictions and Limitations for Attaching ATM Service Policies, page 4-5
Attaching ATM QoS Service Policies to ATM Interfaces, Subinterfaces, and PVCs, page 4-5
Description
The attachment of ATM QoS service policies feature was
introduced on the router.
This feature was introduced on the PRE2.
This feature was modified to allow you to attach ATM QoS
service policies to a range of PVCs and to a specific PVC
within the PVC range.
This feature was integrated in Cisco IOS
Release 12.2(28)SB for the PRE2.
This feature was introduced on the PRE3.
For all releases earlier than Cisco IOS Release 12.3(7)XI2, if you attach a service policy only to the
physical interface, the aggregate of all unspecified bit rate (UBR) PVCs is subject to the physical
interface's service policy.
For Cisco IOS Release 12.3(7)XI2 and later releases, if you attach a service policy only to the
physical interface, the aggregate of all unshaped UBR PVCs is subject to the physical interface's
service policy. In Cisco IOS Release 12.3(7)XI2 and later releases, the router treats shaped UBR
PVCs like variable bit rate (VBR) and constant bit rate (CBR) PVCs.
Chapter 4 Attaching Service Policies
Required PRE
PRE1
PRE2
PRE2
PRE2
PRE2
PRE3
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