Lucent Technologies PortMaster, Руководство по настройке

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15-1
Using Office-to-Office Connections
15
This chapter uses an example to demonstrate how to configure the PortMaster to
connect your office to another office using a dial-on-demand modem configuration. This
type of connection is designed to take the place of a costly dedicated line between the
two locations, where the amount and duration of traffic do not justify a leased line or
Frame Relay connection.
This chapter also briefly describes how to configure multiline load balancing and ISDN
BRI on-demand connections for office-to-office use.
The following topics are discussed:
• “Overview of Example Configuration” on page 15-1
• “Configuration Steps for an Office-to-Office Connection” on page 15-3
• “Setting the Console Port for Multiline Load Balancing” on page 15-13
• “Using ISDN for On-Demand Connections” on page 15-15
See the PortMaster Command Line Reference for more detailed command descriptions and
instructions.
Overview of Example Configuration
The example described in this chapter connects a PortMaster Office Router located in a
branch office in London with a PortMaster 2 in the headquarters in Paris. These models
are used as an example; you can use any PortMaster for this configuration.
The PortMaster Office Router is designed to provide cost-effective connectivity between
small remote (branch) offices and larger headquarters (main) offices. These types of
connections are typically established on an as-needed basis. For most applications, a
continuous connection is not cost-effective to maintain when a dial-on-demand
connection can be established to transfer network traffic when necessary.
A dial-on-demand link establishes a connection with the specified location when
network traffic is queued. The PortMaster PCMCIA Office Router OR-M is designed to
support a dial-on-demand connection with another office using the PCMCIA modem
port S1. Figure 15-1 shows an example of this configuration. The console port S0 can be