[  820.738582][T14750] netdevsim netdevsim475 eni475np1: renamed from eth0
[  820.760319][T14752] netdevsim netdevsim767 eni767np1: renamed from eth1
[  821.401123][T14738] Could not find device with ifindex 2000 in netnsfd 11
[  821.401954][T14738] Could not find netns with fd: 2000
[  821.402329][T14738] Cannot link a netdevsim to itself
[  821.402771][T14738] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).