[  488.790592] netdevsim netdevsim307 eni307np1: renamed from eth0
[  488.891526] netdevsim netdevsim701 eni701np1: renamed from eth1
[  489.219082] Could not find device with ifindex 2000 in netnsfd 11
[  489.219217] Could not find netns with fd: 2000
[  489.219303] Cannot link a netdevsim to itself
[  489.219387] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).