[  837.935667][T15787] netdevsim netdevsim406 eni406np1: renamed from eth0
[  837.959365][T15786] netdevsim netdevsim554 eni554np1: renamed from eth1
[  838.733683][T15775] Could not find device with ifindex 2000 in netnsfd 11
[  838.734481][T15775] Could not find netns with fd: 2000
[  838.735478][T15775] Cannot link a netdevsim to itself
[  838.736355][T15775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).