[  523.288019] netdevsim netdevsim370 eni370np1: renamed from eth0
[  523.384994] netdevsim netdevsim681 eni681np1: renamed from eth1
[  523.622349] Could not find device with ifindex 2000 in netnsfd 11
[  523.622532] Could not find netns with fd: 2000
[  523.622617] Cannot link a netdevsim to itself
[  523.622718] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).