[  521.967073] netdevsim netdevsim273 eni273np1: renamed from eth0
[  522.064457] netdevsim netdevsim596 eni596np1: renamed from eth1
[  522.277053] Could not find device with ifindex 2000 in netnsfd 11
[  522.277259] Could not find netns with fd: 2000
[  522.277359] Cannot link a netdevsim to itself
[  522.277476] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).