[  456.114328] netdevsim netdevsim443 eni443np1: renamed from eth0
[  456.116836] netdevsim netdevsim581 eni581np1: renamed from eth0
[  456.207359] Could not find device with ifindex 2000 in netnsfd 11
[  456.207486] Could not find netns with fd: 2000
[  456.207546] Cannot link a netdevsim to itself
[  456.207616] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).