Bay Networks 5000 Manuel d'utilisateur télécharger pdf (Page 8)

Centillion 50 workgroup switches are

readily deployed in smaller closets

(see Figure 4). The full beneﬁts of

switching at the workgroup are

realized in environments where high-

capacity connections to the backbone

are required to access corporate

resources. As shown in the diagram,

Centillion technology delivers multiple

load-balancing ATM links, providing

an integrated solution for switched

Ethernet or Token Ring connectivity

with fast failover NNI (network-to-

network interface) links to the

ATM backbone.

PNNI can be implemented from

the edge to the network core to

automatically determine the optimal

path between switches, and the

Centillion solution provides for accel-

erated Layer 3 intranet performance

via a straightforward and cost-effective

software migration to MPOA.

MAN and WAN Applications

Two approaches are available for

establishing metropolitan or wide

area connectivity in the Centillion

LAN-ATM switching environment.

A direct, cost-effective approach is to

conﬁgure ATMSpeed modules with

either DS3 or E3 MDA modules,

establishing connectivity over

corporate WANs at rates of 45

or 34 Mbps. In environments where

connectivity over public data networks

is desired, the Model 5782

Multiprotocol Engine (MPE) can be

installed into a System 5000BH switch

to provide trafﬁc shaping services,

eliminating bursty transmissions not

tolerated by carrier services. Trafﬁc

shaping capabilities can also be

implemented by the Bay Networks

BN router’s ATM Routing Engine.

Alternatively, deployment of

Bay Networks Centillion 1000 or MX

ATM WAN Access platforms integrates

regional and branch ofﬁce environments

into corporate ATM private networks

via public carrier services (see Figure 4).

This capability enables organizations

to consolidate traditionally separate

voice, video, and data trafﬁc onto

a common network infrastructure,

dramatically lowering the cost of

WAN connectivity.

Data Sheet Centillion 50, Centillion 100 and System 5000BH Switches8

Existing networking environments

can be smoothly integrated into

the ATM environment. As additional

bandwidth, wide area and voice

demands increase, the Bay Networks

Centillion 1000 ATM multiservice

switches provide a scalable path for

expanded ATM network center services.

Wiring Closet Applications

A fully conﬁgured Centillion 100

or System 5000BH LAN-ATM switch

supports ultra-high 10/100 Ethernet

and Token Ring switching densities

(up to 240 ports per chassis), offering

an exceptional concentration of large

workgroup and desktop populations.

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