[  475.623278] netdevsim netdevsim507 eni507np1: renamed from eth0
[  475.623649] netdevsim netdevsim679 eni679np1: renamed from eth1
[  475.710928] Could not find device with ifindex 2000 in netnsfd 11
[  475.710997] Could not find netns with fd: 2000
[  475.711033] Cannot link a netdevsim to itself
[  475.711072] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).