looking for ofport re-use while port still exists

check_for_broken_ovs

#!/bin/bash
FNAME=$1
file $1 | grep gzip >/dev/null
if [ $? -eq 1 ]; then extract_com=cat; else extract_com=gzcat; fi

interfaces=$($extract_com $FNAME | grep " added interface " | grep "on port" | awk -F 'added interface ' '{ print $2 }' | awk -F ' on port ' '{ print $2 "!!" $1 }' | sort | uniq )

for i in $interfaces; do
   ofport=$(echo $i | awk -F '!!' '{ print $1 }')
   intf=$(echo $i | awk -F '!!' '{ print $2 }')
   all_on_port=$($extract_com $FNAME | grep "on port $ofport\$" | grep interface)
   THIS_ACTIVE=0
   THIS_FIRST_LINE=''
   OTHER_ACTIVE=0
   OTHER_FIRST_LINE=''
   while read -r line; do
        if [[ "$line" =~ "$intf on port" ]]; then
            if [[ $THIS_ACTIVE -eq 0 ]]; then
                THIS_ACTIVE=1
                THIS_FIRST_LINE=$line
            fi
            if [[ $OTHER_ACTIVE -eq 1 ]]; then
                echo "Potential conflict for $intf"
                echo $THIS_FIRST_LINE
                echo $OTHER_FIRST_LINE
                echo $line
                continue 2
            fi
        else
            if [[ $THIS_ACTIVE -eq 1 ]]; then
                if [[ $OTHER_ACTIVE -eq 0 ]]; then
                    OTHER_FIRST_LINE=$line
                fi
                OTHER_ACTIVE=1
            fi
        fi
   done <<< "$all_on_port"
done