[  522.573533] netdevsim netdevsim499 eni499np1: renamed from eth0
[  522.670220] netdevsim netdevsim527 eni527np1: renamed from eth1
[  522.913737] Could not find device with ifindex 2000 in netnsfd 11
[  522.913909] Could not find netns with fd: 2000
[  522.913989] Cannot link a netdevsim to itself
[  522.914085] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).