[  479.296042] netdevsim netdevsim443 eni443np1: renamed from eth0
[  479.296858] netdevsim netdevsim615 eni615np1: renamed from eth0
[  479.377958] Could not find device with ifindex 2000 in netnsfd 11
[  479.378061] Could not find netns with fd: 2000
[  479.378108] Cannot link a netdevsim to itself
[  479.378160] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).