[  484.296107] netdevsim netdevsim539 eni539np1: renamed from eth1
[  484.396462] netdevsim netdevsim350 eni350np1: renamed from eth0
[  484.716741] Could not find device with ifindex 2000 in netnsfd 11
[  484.716882] Could not find netns with fd: 2000
[  484.716964] Cannot link a netdevsim to itself
[  484.717074] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).