[  474.279001] netdevsim netdevsim519 eni519np1: renamed from eth1
[  474.280362] netdevsim netdevsim336 eni336np1: renamed from eth0
[  474.374298] Could not find device with ifindex 2000 in netnsfd 11
[  474.374399] Could not find netns with fd: 2000
[  474.374457] Cannot link a netdevsim to itself
[  474.374517] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).