Bay Networks BayRS Instrukcja Użytkownika Pobierz pdf (Strona 3)

Flexible Network Design

The BayStack AN and ANH meet the

connectivity needs of remote ofﬁces

while providing an extra level of

availability. Additionally, the BayStack

AN and ANH support SNA/SDLC

integration. Multiple network design

options are available (see Figure 1).

Dial Backup

Dial Backup maintains remote ofﬁce

connectivity if the primary remote-to-

central site link (leased line or packet

switched service) fails. The BayStack

AN and ANH initiate, monitor, and

terminate dial backup connections to

maximize network availability, while

minimizing dial-up charges.

Bandwidth-on-Demand

Bandwidth-on-Demand provides a

supplemental dial connection if the

primary link becomes congested,

maintaining user-required perform-

ance levels.

Dial-on-Demand

Because of the limited amount of

internetwork trafﬁc generated by

small remote ofﬁces, maintaining

dedicated links to such sites is not

always cost-effective. Dial-on-

Demand cost-effectively extends

internetwork connectivity to remote

ofﬁces on an as-needed basis.

SDLC Transport

SDLC transport enables the BayStack

AN and ANH to transmit SNA/SDLC

traffic across a multiprotocol back-

bone via standards-based DLSw for

SDLC or Transparent Synchronous

Pass-Through features. These features

reduce the cost of wide area networks

by consolidating parallel lines, allow-

ing SDLC trafﬁc to be sent across the

multiprotocol backbone to a remote

IBM host.

Integrated Router-Hub

Connectivity

The integrated Ethernet hub conﬁgu-

rations allow the BayStack ANH to

manage and connect eight or twelve

10BASE-T remote workgroup

resources directly to a central site via

leased line and/or packet switched

services.

Data Sheet BayStack Access Node and Access Node Hub 3

Multiprotocol

Backbone

Internetwork

Integrated Router/Hub

Reduced complexity

Dial Backup

Primary link failure

Bandwidth-on-Demand

Primary link congested

Embedded RMON

High availability

Dial-on-Demand

Primary link as needed

SNA/SDLC Transport

IBM integration

X

Figure 1 Network Design Options

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