[  482.689225] netdevsim netdevsim398 eni398np1: renamed from eth0
[  482.689393] netdevsim netdevsim641 eni641np1: renamed from eth1
[  482.776429] Could not find device with ifindex 2000 in netnsfd 11
[  482.776556] Could not find netns with fd: 2000
[  482.776659] Cannot link a netdevsim to itself
[  482.776773] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).