Avaya Configuring Dial Services Bedienungsanleitung PDF herunterladen (Seite 171)

Bandwidth-on-Demand Implementation Notes

117353-B Rev. 00

8-9

External Clock Speed Effects on Congestion Thresholds

The router uses several congestion threshold parameters to measure congestion on

the bandwidth circuit. The values of these parameters determine when the router

activates additional lines to relieve congestion.

If you want to change the clock speed of your leased line to a value other than the

default, 64 Kb/s, this affects how the router calculates the congestion thresholds.

To ensure that the router’s calculations are accurate, you must modify the clock

speed using the synchronous line parameter External Clock Speed. Once you

configure this parameter to match the line speed, you ensure that the congestion

thresholds will be correct.

The External Clock Speed parameter is part of the synchronous line configuration.

To access synchronous line parameters, begin at the Configuration Manager

window and select Circuits > Edit Lines. From here, you can select the circuit that

you want to edit.

For instructions on accessing and modifying the synchronous line parameters, see

Configuring WAN Line Services.

Testing the Bandwidth-on-Demand Connection

To ensure that the router can activate a secondary line if a leased line becomes

congested, you can use the Technician Interface to execute the

forced dial

command. The

forced dial

command tells the router that the leased line or bundle

is congested, even if it is not. This forces the router to activate a secondary line. If

the router cannot activate a secondary line, there is a problem with the line.

To issue the

forced dial

command, set the value of the forced dial attribute to 1.

The command syntax is as follows:

set wfSwservOptsEntry.wfSwservOptsForcedDial.<

circuit_no

.> 1;commit

To deactivate a forced dial connection, issue a

forced take down

command. The

command syntax is as follows:

set wfSwservOptsEntry.wfSwservOptsForcedTakedown.<

circuit_no

1;commit

You cannot use this test for demand circuits using bandwidth-on-demand service.

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