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user@host# pattern number

user@host# period number

For information about test procedure, see “Understanding ATM IMA Configuration on

ACX Series Router” on page 174.

8. Configure a transmit clock to reflect the primary reference source (PRS) of the clock

for each link in a group either in common timing mode or independent timing mode.

By default, common timing mode is selected.

[edit interface interface-name ima-atm-options]

user@host# set transmit-clock (common | independent)

9. Configure the IMA specification version as either version 1.0 or version 1.1. By default,

IMA version 1.1 is selected.

[edit interface interface-name ima-atm-options]

user@host# set version (1.0|1.1)

Documentation

Understanding ATM IMA Configuration on ACX Series Router on page 174•

Inverse Multiplexing for ATM (IMA) Overview

Inverse multiplexing for ATM is a technique of transporting ATM traffic over a bundle of

T1 or E1 interfaces. Inverse multiplexing is the opposite of multiplexing. Multiplexing is a

technique of combining multiple signals into a single signal. Inverse multiplexing is a

technique that divides a data stream into multiple concurrent streams that are transmitted

at the same time across separate channels (such as T1 or E1 interfaces) and then

reconstructed at the other end back into the original data stream. Inverse multiplexing

is used to speed up the flow of data across a slower interface, such as a T1 or E1 interface,

by load balancing the data stream across multiple T1 or E1 interfaces, increasing the line

capacity.

With ATM inverse multiplexing, an ATM cell stream is transported over a bundle of T1 or

E1 interfaces called an IMA group. The ATM cells are inverse multiplexed and

demultiplexed cyclically across the IMA group to create a higher-bandwidth logical link

whose rate is approximately the sum of all the interfaces in the group.

Documentation

Configuring Inverse Multiplexing for ATM (IMA) on page 185•

ACX Series Universal Access Router Configuration Guide

Juniper ACX2000 Configuration Guide

Other manuals for Juniper ACX2000