[  475.633931] netdevsim netdevsim300 eni300np1: renamed from eth0
[  475.634518] netdevsim netdevsim624 eni624np1: renamed from eth1
[  475.727303] Could not find device with ifindex 2000 in netnsfd 11
[  475.727439] Could not find netns with fd: 2000
[  475.727551] Cannot link a netdevsim to itself
[  475.727668] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).