Benefits; Creating Control Pvcs - Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual

JUNOSe 11.0.x Link Layer Configuration Guide

Benefits

Using commands in ATM VC Configuration mode to configure individual ATM PVC
parameters provides the following benefits:
NOTE: If you have existing configuration scripts that use the atm pvc command, we
recommend that you continue to use the atm pvc command to configure all ATM
PVC parameters except those that require you to use the oam ais-rdi command or
oam retry command in ATM VC Configuration mode.

Creating Control PVCs

A control PVC, also referred to as a control circuit, supports services such as ILMI to
manage and control ATM networks. You must create a control PVC on an ATM major
46
Configuring Individual ATM PVC Parameters
Configuring the Service Category for Data PVCs on page 48
Configuring Encapsulation for Data PVCs on page 50
Configuring F5 OAM for Data PVCs on page 51
Configuring Inverse ARP for Data PVCs on page 54
Commands in ATM VC Configuration mode are less complex and easier to use.
With the atm pvc command and keywords, you configure multiple PVC attributes
on a single command line. In addition, configuration attributes available only
for control (ILMI and signaling) PVCs or only for data PVCs are not mutually
exclusive.
By contrast, ATM VC Configuration mode provides commands to configure each
parameter individually, and makes a clearer distinction between configuration
of control PVCs and configuration of data PVCs.
ATM VC Configuration mode interoperates with the atm pvc command.
You can configure all of the parameters currently supported by the atm pvc
command from within ATM VC Configuration mode. In addition, you can create
a PVC with the atm pvc command and modify or delete the same PVC by using
ATM VC Configuration mode. Conversely, you can modify (with certain
restrictions) or delete a PVC created in ATM VC Configuration mode by using
the atm pvc command.
ATM VC Configuration mode supports additional F5 OAM alarm surveillance and
VC integrity options.
In most cases, you can use either an ATM VC Configuration mode command or
the atm pvc command to configure ATM PVC parameters. However, to configure
F5 OAM alarm surveillance parameters (by using the oam ais-rdi command) or
VC integrity parameters (by using the oam retry command), you must use only
ATM VC Configuration mode. There are no equivalent atm pvc commands to
configure these parameters.
You can, however, continue to use the atm pvc command to enable VC integrity
and modify the loopback frequency of an ATM data PVC.