[  816.299552][T14573] netdevsim netdevsim278 eni278np1: renamed from eth0
[  816.331046][T14575] netdevsim netdevsim749 eni749np1: renamed from eth1
[  817.037907][T14561] Could not find device with ifindex 2000 in netnsfd 11
[  817.038766][T14561] Could not find netns with fd: 2000
[  817.039367][T14561] Cannot link a netdevsim to itself
[  817.046672][T14561] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).