Juniper ACX2000 Configuration Guide

Configuring IMA Group Options
To configure the various options for an IMA group on an ATM interface:
1. In configuration mode, go to the [edit interfaces interface-name ima-group-options]
hierarchy level, where the interface name is at-fpc/pic/port.
[edit]
user@host# edit interface interface-name ima-group-options
2. Configure the maximum differential delay between the links in the IMA group. You
can configure the maximum differential delay from 1 millisecond through 56
milliseconds. By default, 25 milliseconds is set.
[edit interface interface-name ima-atm-options]
user@host# set differential-delay delay
3. Configure the frame length of the ICP cell as 32, 64, 128, or 256. By default, 128 is set.
[edit interface interface-name ima-atm-options]
user@host# set frame-length length
4. Configure the IMA group frame synchronization state parameters alpha, beta, and
gamma.
[edit interface interface-name ima-atm-options]
user@host# set alpha number beta number gamma number
For the default values and parameter range for alpha, beta, and gamma, see
“Understanding ATM IMA Configuration on ACX Series Router” on page 174.
5. Configure IMA group minimum active links. You can configure between 1 to 16 links. 1
is set by default.
[edit interface interface-name ima-atm-options]
user@host# set minimum-links links
6. Configure the symmetry of the IMA group as either symmetrical configuration and
operation or symmetrical configuration and asymmetrical operation.
[edit interface interface-name ima-atm-options]
user@host# set symmetry (symmetrical-config-and-operation |
symmetrical-config-asymmetrical-operation)
For information about symmetry, see “Understanding ATM IMA Configuration on ACX
Series Router” on page 174.
7. Configure a test procedure to start and end the test pattern procedure.
[edit interface interface-name ima-atm-options]
user@host# set ima-test-start
user@host# ima-test-stop
user@host# interface interface-name
183Copyright © 2017, Juniper Networks, Inc.
Chapter 6: Configuring ATM Interfaces

Juniper ACX2000 Specifications

General

Brand	Juniper
Model	ACX2000
Category	Network Router
Language	English