[  847.175749][T14761] netdevsim netdevsim420 eni420np1: renamed from eth0
[  847.190857][T14763] netdevsim netdevsim710 eni710np1: renamed from eth1
[  847.840979][T14749] Could not find device with ifindex 2000 in netnsfd 11
[  847.842139][T14749] Could not find netns with fd: 2000
[  847.842537][T14749] Cannot link a netdevsim to itself
[  847.842993][T14749] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).