[  481.635634] netdevsim netdevsim277 eni277np1: renamed from eth0
[  481.637124] netdevsim netdevsim704 eni704np1: renamed from eth0
[  481.729068] Could not find device with ifindex 2000 in netnsfd 11
[  481.729261] Could not find netns with fd: 2000
[  481.729390] Cannot link a netdevsim to itself
[  481.729538] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).