[  485.633408] netdevsim netdevsim534 eni534np1: renamed from eth1
[  485.734095] netdevsim netdevsim416 eni416np1: renamed from eth0
[  486.090002] Could not find device with ifindex 2000 in netnsfd 11
[  486.090171] Could not find netns with fd: 2000
[  486.090251] Cannot link a netdevsim to itself
[  486.090373] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).