[  476.179577] netdevsim netdevsim423 eni423np1: renamed from eth0
[  476.182905] netdevsim netdevsim524 eni524np1: renamed from eth1
[  476.263452] Could not find device with ifindex 2000 in netnsfd 11
[  476.263568] Could not find netns with fd: 2000
[  476.263629] Cannot link a netdevsim to itself
[  476.263704] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).