[  519.551925] netdevsim netdevsim451 eni451np1: renamed from eth0
[  519.649119] netdevsim netdevsim578 eni578np1: renamed from eth1
[  519.873363] Could not find device with ifindex 2000 in netnsfd 11
[  519.873570] Could not find netns with fd: 2000
[  519.873670] Cannot link a netdevsim to itself
[  519.873779] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).