[  518.828151] netdevsim netdevsim736 eni736np1: renamed from eth1
[  518.925477] netdevsim netdevsim312 eni312np1: renamed from eth0
[  519.121992] Could not find device with ifindex 2000 in netnsfd 11
[  519.122180] Could not find netns with fd: 2000
[  519.122275] Cannot link a netdevsim to itself
[  519.122379] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).