[  664.925741][T14437] netdevsim netdevsim270 eni270np1: renamed from eth0
[  664.932854][T14439] netdevsim netdevsim543 eni543np1: renamed from eth1
[  665.276256][T14425] Could not find device with ifindex 2000 in netnsfd 11
[  665.279679][T14425] Could not find netns with fd: 2000
[  665.279856][T14425] Cannot link a netdevsim to itself
[  665.280087][T14425] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).