[  545.239137] netdevsim netdevsim322 eni322np1: renamed from eth0
[  545.339561] netdevsim netdevsim747 eni747np1: renamed from eth1
[  545.660777] Could not find device with ifindex 2000 in netnsfd 11
[  545.660947] Could not find netns with fd: 2000
[  545.661053] Cannot link a netdevsim to itself
[  545.661170] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).