[  521.693756] netdevsim netdevsim754 eni754np1: renamed from eth1
[  521.790191] netdevsim netdevsim298 eni298np1: renamed from eth0
[  522.009831] Could not find device with ifindex 2000 in netnsfd 11
[  522.010049] Could not find netns with fd: 2000
[  522.010167] Cannot link a netdevsim to itself
[  522.010307] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).