[  810.504895][T14774] netdevsim netdevsim337 eni337np1: renamed from eth0
[  810.521572][T14776] netdevsim netdevsim543 eni543np1: renamed from eth1
[  811.099143][T14762] Could not find device with ifindex 2000 in netnsfd 11
[  811.099617][T14762] Could not find netns with fd: 2000
[  811.099974][T14762] Cannot link a netdevsim to itself
[  811.100370][T14762] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).