[  483.311551] netdevsim netdevsim473 eni473np1: renamed from eth0
[  483.412413] netdevsim netdevsim764 eni764np1: renamed from eth1
[  483.781003] Could not find device with ifindex 2000 in netnsfd 11
[  483.781161] Could not find netns with fd: 2000
[  483.781244] Cannot link a netdevsim to itself
[  483.781337] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).