[  484.555298] netdevsim netdevsim303 eni303np1: renamed from eth0
[  484.656317] netdevsim netdevsim581 eni581np1: renamed from eth1
[  485.041822] Could not find device with ifindex 2000 in netnsfd 11
[  485.042014] Could not find netns with fd: 2000
[  485.042107] Cannot link a netdevsim to itself
[  485.042207] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).