There's two ways that you can do this in perl:

One, create a hash of hashs of arrays:

my %hash = ( network_type_1 => { conn_type_1 => [ 1 ],
                                 conn_type_2 => [ 2 ] },
             network_type_2 => { conn_type_1 => [ 3 ],
                                 conn_type_2 => [ 4 ] } );
# To get at the elements:
print $hash{ $network }->{ $connection }->[ $pos ];
[download]

Alternatively, if there is a way to delimit the network and connection type into one string, you can get away with just a hash of arrays:

my %hash = ( 'network-type_1|conn_type_1' => [ 1 ],
             'network-type_1|conn_type_2' => [ 2 ],
             'network-type_2|conn_type_1' => [ 3 ],
             'network-type_2|conn_type_2' => [ 4 ] ); 
print $hash{ "$network|$conn" }->[ $pos ];
[download]

While the latter is probably easier to type out, the former case is easier to understand.

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Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain