[  689.157808][T13060] netdevsim netdevsim457 eni457np1: renamed from eth0
[  689.170214][T13062] netdevsim netdevsim539 eni539np1: renamed from eth1
[  689.797031][T13048] Could not find device with ifindex 2000 in netnsfd 11
[  689.797953][T13048] Could not find netns with fd: 2000
[  689.798407][T13048] Cannot link a netdevsim to itself
[  689.798939][T13048] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).