[  475.255956] netdevsim netdevsim307 eni307np1: renamed from eth0
[  475.256502] netdevsim netdevsim543 eni543np1: renamed from eth1
[  475.341850] Could not find device with ifindex 2000 in netnsfd 11
[  475.341923] Could not find netns with fd: 2000
[  475.341958] Cannot link a netdevsim to itself
[  475.342000] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).