Avaya Configuring Dial Services Manual de usuario Pagina 54

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Configuring Dial Services
1-26
117353-B Rev. 00
After the volume of traffic on the congested line falls below the congestion
threshold, the router again uses only the leased line, demand line, or bundle. For
details about the monitor parameters, see “Monitoring Congestion on the
Bandwidth or Demand Circuit” on page 12-3.
Terminating Secondary Lines
The router terminates secondary lines when:
The leased line or multilink bundle fails.
The leased circuit is no longer congested.
The remote router terminates the connection.
There is a physical problem with the dial-up line.
Sample Bandwidth-on-Demand Application
In Figure 1-11, the leased line is congested due to bridge/routing protocol traffic.
The BLN in Rome, designated as the monitor router, has determined the line is
congested based on the monitor parameter values. Consequently, the router brings
up an ISDN B channel as a secondary line.
Figure 1-11. Sample Bandwidth-on-Demand Network
AN
Slot 3
octal sync
Slot 2
dual sync
dual Ethernet
TA
Rome Backbone
link node
Avignon
access node
Dial-up line
to Interlaken
Secondary dial-up line
(ISDN B channel)
Leased line (9.6 Kb/s)
ISDN
DS0001A
64 Kb/s leased line to Florence
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