[  522.047967] netdevsim netdevsim622 eni622np1: renamed from eth1
[  522.146417] netdevsim netdevsim302 eni302np1: renamed from eth0
[  522.367241] Could not find device with ifindex 2000 in netnsfd 11
[  522.367438] Could not find netns with fd: 2000
[  522.367526] Cannot link a netdevsim to itself
[  522.367624] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).