[  479.246108] netdevsim netdevsim483 eni483np1: renamed from eth0
[  479.246480] netdevsim netdevsim645 eni645np1: renamed from eth1
[  479.352364] Could not find device with ifindex 2000 in netnsfd 11
[  479.352483] Could not find netns with fd: 2000
[  479.352570] Cannot link a netdevsim to itself
[  479.352667] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).