I think you want something like this: 
while (my ($mac, $bp) = each %mactobp) {
    $mactobp {$mac} = $bptoifIndex {$bp} if exists $bptoifIndex {$bp}
}

[download]

Iterating over an hash just to find a certain index (what you are doing in the inner loop) is just silly. The reason to have hashes is to be able to quickly find keys, to avoid doing a linear search.

Abigail

In reply to Re: Merging 2 hashes by Abigail-II
in thread Merging 2 hashes - updated again by rspence

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