[  476.094230] netdevsim netdevsim263 eni263np1: renamed from eth0
[  476.095066] netdevsim netdevsim745 eni745np1: renamed from eth1
[  476.196506] Could not find device with ifindex 2000 in netnsfd 11
[  476.196626] Could not find netns with fd: 2000
[  476.196698] Cannot link a netdevsim to itself
[  476.196777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).