3Com 6416SW manual Module

ATM Switch/Control		Module
The	ATM Switch/Contol Module (6416SW) module			used in	the ONcore hub consists of
two	cards packaged into a double-slot module:
A	base card (ATM Switch fabric)		that	switches	cells from one ATM port to another
ATM	port or	to another output link	on the same		module.

ATM cell switching is carried out by means of the Switch integrated circuit, a technology used by the ONcore switch. This single chip is a non-blocking 16-by-16 times 256 Mbps 8-bit parallel switch.

The Control Point card houses a processor where the Control program resides.

The 3Com

ONcore

ATM

subsystem (as

all ATM switching

devices)

requires a

control

program

to

perform

the

functions

associated

with

the

establishment

and

management

of

ATM circuits. These functions are integrated into

the

switching element

of

each

6416SW module. This allows the ONcore ATM subsystem

to

use

a

distributed

control

system with the following advantages:

Each ATM module benefits from the fault-tolerant

design

of

the

3Com

ONcore

chassis.

Continued

ATM

network

operation

is

ensured

in case

of a

failure

at

a

single

point in

the

network.

1-6 ONcore ATM Switch/Control Module: Installation and User's Guide