gistfile1.txt

create bridge to physical interface
        ip link add name bridge0 type bridge
        ip link set bridge0 up
        ip link show
        ip link set enp0s2 master bridge0
        
create epair
        ip link add outside type veth peer name inside
        ip link set outside up
        ip link set outside master bridge0
        
create netns
        ip netns add ns1
        # add loopback to it
        ip netns exec ns1 ip link set dev lo up
        
delegate half epair into netns
        ip link set inside netns ns1
        
add tc qdisc to epair
        tc qdisc add dev outside root netem delay 200ms rate 1024kbit
        
config an address inside the ns
        ip netns exec ns1 dhclient inside
        
run ping google.com in netns
        ip netns exec ns1 ping 8.8.8.8
        
tidy up 
        tc qdisc del dev outside root
        ip netns del ns1
        ip link del bridge0
        ip link del outside