[  522.226504] netdevsim netdevsim622 eni622np1: renamed from eth1
[  522.324749] netdevsim netdevsim466 eni466np1: renamed from eth0
[  522.545146] Could not find device with ifindex 2000 in netnsfd 11
[  522.545355] Could not find netns with fd: 2000
[  522.545445] Cannot link a netdevsim to itself
[  522.545550] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).