[  522.259961] netdevsim netdevsim599 eni599np1: renamed from eth1
[  522.355724] netdevsim netdevsim454 eni454np1: renamed from eth0
[  522.634181] Could not find device with ifindex 2000 in netnsfd 11
[  522.634380] Could not find netns with fd: 2000
[  522.634471] Cannot link a netdevsim to itself
[  522.634572] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).