[  474.404114] netdevsim netdevsim506 eni506np1: renamed from eth0
[  474.407649] netdevsim netdevsim539 eni539np1: renamed from eth1
[  474.485058] Could not find device with ifindex 2000 in netnsfd 11
[  474.485209] Could not find netns with fd: 2000
[  474.485336] Cannot link a netdevsim to itself
[  474.485468] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).