[  521.421210] netdevsim netdevsim378 eni378np1: renamed from eth0
[  521.518216] netdevsim netdevsim534 eni534np1: renamed from eth1
[  521.754129] Could not find device with ifindex 2000 in netnsfd 11
[  521.754317] Could not find netns with fd: 2000
[  521.754401] Cannot link a netdevsim to itself
[  521.754502] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).