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Sampling a Single SONET/SDH Interface

The following configuration gathers statistical sampling information from a small percentage of all traffic on a single SONET/SDH interface and collects it in a file named sonet-samples.txt.

Create the filter:



[edit firewall family inet]
filter {


sample-sonet {


then {
sample;
accept;
}


}


}

Apply the filter to the SONET/SDH interface:



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


unit 0 {


family inet {


filter {
input sample-sonet;
}




address 10.127.68.254/32 {
destination 10.127.74.7;
}


}


}


}

Finally, configure traffic sampling:



[edit forwarding-options]
sampling {


input {


family inet {
rate 100;
run-length 2;
}


}




output {


file {
filename sonet-samples-txt;
files 40;
size 5m;
}


}


}

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