[  521.712351] netdevsim netdevsim702 eni702np1: renamed from eth1
[  521.804501] netdevsim netdevsim442 eni442np1: renamed from eth0
[  522.310949] Could not find device with ifindex 2000 in netnsfd 11
[  522.311296] Could not find netns with fd: 2000
[  522.311531] Cannot link a netdevsim to itself
[  522.311777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).