Configuring Atm Vc Classes; Benefits - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - LINK LAYER CONFIGURATION GUIDE 2010-10-13 Configuration Manual

Configuring ATM VC Classes

Benefits

Copyright © 2010, Juniper Networks, Inc.
You must issue the exit command from ATM VC Configuration mode for the
configuration to take effect.
Example
host1(config-subif-atm-vc)#inarp 5
host1(config-subif-atm-vc)#exit
Use the no version to restore the default behavior, which disables Inverse ARP on the
router.
See inarp.
As an alternative to configuring individual parameters for ATM data PVCs, you can access
ATM VC Class Configuration mode to configure a class of attributes for an ATM data
PVC. A VC class is a set of attributes for a virtual circuit (VC) that can include the service
category, encapsulation method, F5 OAM options, and Inverse ARP.
After you configure the VC class, you then apply the attributes in the class as a group by
assigning the VC class to one of the following:
An individual PVC
All PVCs created on a specified static ATM major interface
All PVCs created on a specified static ATM 1483 subinterface
A base profile from which bulk-configured VC ranges are created on a dynamic
ATM 1483 subinterface
VC class assignments are valid only for ATM data PVCs created with the pvc command.
Assigning a VC class to a PVC created with the atm pvc command, or to a control (ILMI)
PVC, has no effect. For information about creating a data PVC by using the pvc command,
see "Creating Data PVCs" on page 45.
NOTE: For information about the total number of VC classes supported on
the router, see JunosE Release Notes, Appendix A, System Maximums.
Using VC classes to configure and assign attributes to ATM data PVCs provides the
following benefits:
VC classes enable you to classify and group ATM PVCs based on the OAM and traffic
requirements of their associated subscribers.
In a typical scenario, you might group subscribers based on their OAM and traffic
requirements, and then create a VC class for each subscriber group. For example, you
might create two VC classes: premium-subscriber-class and economy-subscriber-class.
Chapter 1: Configuring ATM
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