Avaya Configuring Dial Services Bedienungsanleitung PDF herunterladen (Seite 54)

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Configuring Dial Services

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Figure 1-10 shows how secondary lines support a leased connection.

Figure 1-10. Example of Bandwidth-on-Demand Service

Initially, the router brings up one secondary line to alleviate congestion. If the

congestion persists, the router activates a second and then a third line until the

congestion subsides. Each new line that the router activates becomes part of a

multilink bundle. The router then balances traffic over the bundle. After the traffic

decreases, the router deactivates the secondary lines, one at a time.

A router on one side of the connection monitors byte counts for the data it sends

and receives. This router is called the monitor router. The monitor router uses

these byte counts, along with bandwidth-on-demand monitor parameters, to

determine when to activate additional lines for more bandwidth. The router then

uses all the available lines in the bundle to send data across the network.

The router on the other side of the connection is the non-monitor router. The

non-monitor router cannot activate additional dial-up lines. If you configure BAP

for ISDN connections, the non-monitor router has a more active role in

determining how additional lines are activated for more bandwidth. For more

information about BAP, see Chapter 8, “Bandwidth-on-Demand Implementation

Notes.”

Remote site BCentral site A

PPP multilink (64 Kb/s)

ISDN

DS0006A

Key

Secondary dial-up lines

(ISDN B channels)

Leased line with

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