[  455.519653] netdevsim netdevsim452 eni452np1: renamed from eth0
[  455.520400] netdevsim netdevsim700 eni700np1: renamed from eth1
[  455.604767] Could not find device with ifindex 2000 in netnsfd 11
[  455.604920] Could not find netns with fd: 2000
[  455.605023] Cannot link a netdevsim to itself
[  455.605140] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).