[  817.292102][T14462] netdevsim netdevsim457 eni457np1: renamed from eth0
[  817.317963][T14464] netdevsim netdevsim760 eni760np1: renamed from eth1
[  818.044611][T14450] Could not find device with ifindex 2000 in netnsfd 11
[  818.045167][T14450] Could not find netns with fd: 2000
[  818.045921][T14450] Cannot link a netdevsim to itself
[  818.046446][T14450] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).