[  474.011955] netdevsim netdevsim509 eni509np1: renamed from eth0
[  474.012799] netdevsim netdevsim655 eni655np1: renamed from eth1
[  474.092430] Could not find device with ifindex 2000 in netnsfd 11
[  474.092572] Could not find netns with fd: 2000
[  474.092673] Cannot link a netdevsim to itself
[  474.092793] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).