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Example: Configuring Bandwidth on Demand

Figure 53 illustrates a bandwidth-on-demand configuration using multiple physical ISDN interfaces.

Figure 53: Bandwidth-on-Demand Topology

Image g017023.gif

Configuration for the Dialer Interface



[edit interfaces]
dl0 {
encapsulationmultilink-ppp;


unit 0 {


dialer-options {
pool 10;
dial-string 5552222; #Phone number to be dialed
load-threshold 95;#Dial more ISDN if load exceeds 95% of
#current capacity
}


fragment-threshold 1024; #Allowed only when dialer is in
multilink mode
mrru 1500;               #Allowed only when dialer is in
multilink mode
encapsulation multilink-ppp;


rtp {
f-max-period 100;
queues q3;
}


}




family inet {
negotiate-address;
}


}

Configuration for the First Physical ISDN Interface



[edit interfaces]
br-1/0/0 {


isdn-options {
switch-type ni1;
}




dialer-options {
pool 1;
}


}

Configuration for the Second Physical ISDN Interface



[edit interfaces]
br-1/0/1 {


isdn-options {
switch-type ni1;
}




dialer-options {
pool dialer-pool1;
}


}

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