[  843.530852][T15674] netdevsim netdevsim669 eni669np1: renamed from eth1
[  843.533317][T15673] netdevsim netdevsim409 eni409np1: renamed from eth0
[  844.313673][T15661] Could not find device with ifindex 2000 in netnsfd 11
[  844.314810][T15661] Could not find netns with fd: 2000
[  844.315406][T15661] Cannot link a netdevsim to itself
[  844.315940][T15661] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).