[  519.506440] netdevsim netdevsim283 eni283np1: renamed from eth0
[  519.604866] netdevsim netdevsim756 eni756np1: renamed from eth1
[  519.845464] Could not find device with ifindex 2000 in netnsfd 11
[  519.845681] Could not find netns with fd: 2000
[  519.845766] Cannot link a netdevsim to itself
[  519.845865] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).