[  520.279071] netdevsim netdevsim459 eni459np1: renamed from eth0
[  520.376642] netdevsim netdevsim521 eni521np1: renamed from eth1
[  520.609143] Could not find device with ifindex 2000 in netnsfd 11
[  520.609298] Could not find netns with fd: 2000
[  520.609372] Cannot link a netdevsim to itself
[  520.609460] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).