[  517.725771] netdevsim netdevsim549 eni549np1: renamed from eth1
[  517.823437] netdevsim netdevsim274 eni274np1: renamed from eth0
[  518.081872] Could not find device with ifindex 2000 in netnsfd 11
[  518.082045] Could not find netns with fd: 2000
[  518.082118] Cannot link a netdevsim to itself
[  518.082205] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).