[  425.796404] netdevsim netdevsim450 eni450np1: renamed from eth0
[  425.797058] netdevsim netdevsim751 eni751np1: renamed from eth1
[  425.871278] Could not find device with ifindex 2000 in netnsfd 11
[  425.871373] Could not find netns with fd: 2000
[  425.871422] Cannot link a netdevsim to itself
[  425.871473] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).