[  797.026671][T14822] netdevsim netdevsim304 eni304np1: renamed from eth0
[  797.061144][T14824] netdevsim netdevsim663 eni663np1: renamed from eth1
[  797.701710][T14810] Could not find device with ifindex 2000 in netnsfd 11
[  797.702591][T14810] Could not find netns with fd: 2000
[  797.703277][T14810] Cannot link a netdevsim to itself
[  797.704154][T14810] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).