[  484.432256] netdevsim netdevsim341 eni341np1: renamed from eth0
[  484.532839] netdevsim netdevsim690 eni690np1: renamed from eth1
[  484.903211] Could not find device with ifindex 2000 in netnsfd 11
[  484.903369] Could not find netns with fd: 2000
[  484.903488] Cannot link a netdevsim to itself
[  484.903599] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).