雙線自動監控與Loadblance

ping -c5 10.1.2.1
if [ `echo $?` = 1 ]; then
ip route replace 103.199.119.0/24 via 10.1.0.1 dev neta
ip route flush cache
else
ping -c5 10.1.0.1
if [ `echo $?` = 1 ]; then
ip route replace 103.199.119.0/24 via 10.1.2.1 dev netb
ip route flush cache
else
ip route replace 103.199.119.0/24 nexthop via 10.1.2.1 dev netb weight 4 nexthop via 10.1.0.1 dev neta weight 1
ip route flush cache
fi
fi