Created Freitag 07 Februar 2020
# ip netns add <namespace name>
After the creation a namespace only has a loopback link
# ip -n red link
1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00