[  485.378715] netdevsim netdevsim726 eni726np1: renamed from eth1
[  485.478798] netdevsim netdevsim316 eni316np1: renamed from eth0
[  485.893351] Could not find device with ifindex 2000 in netnsfd 11
[  485.893507] Could not find netns with fd: 2000
[  485.893600] Cannot link a netdevsim to itself
[  485.893733] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).