File A contains the following headers: C1 C2 C3 C4 File B contains the following headers: CA CB CC CD File A, $C1, contains "src/dst" strings File A, $C2 contains IP Adresses relative to each "src/dst" string File B, $CA contains "src/dst" strings #### File B, $CB contains link speed #### merge.pl [ File A C1,C2 : File B CA,CB ] #### Link Name IP ifSpeed