[  823.125030][T15801] netdevsim netdevsim412 eni412np1: renamed from eth0
[  823.144144][T15803] netdevsim netdevsim664 eni664np1: renamed from eth1
[  823.792695][T15788] Could not find device with ifindex 2000 in netnsfd 11
[  823.793885][T15788] Could not find netns with fd: 2000
[  823.795325][T15788] Cannot link a netdevsim to itself
[  823.796388][T15788] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).