As a side note (because i do understand the usefulness of your desired output) some general suggestions:

$ip = "";
        $port = "";
        $usr = "";
        $port = "";
        $status = "";
        $frequency = 0;
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is unneeded and error prone because reveals the absence of use strict; use warnings; In fact in a more concise, more robust, less error prone way you can say:

my ($ip,$port,$port,$status,$frequency);
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Read this post to understand why. In Perl, given your variable declaration, you can freely do the following:

        #string?       #number?  #add to string?  #concatenate to numb
+ers?
 my $ip=""; my $freq = 0;        $ip++;          $freq.="still no data
+";
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L*