ip link set dev ${interface} up
sleep 5
link_state=$(ip link show ${interface} | grep -oP 'state \K[^ ]+')
- if [[ ${link_state} != 'UP' ]]; then
+ if [[ ${link_state} == 'DOWN' ]]; then
echo "${red}Could not bring UP interface ${interface} link state is ${link_state}${reset}"
exit 1
fi