[  476.005934] netdevsim netdevsim300 eni300np1: renamed from eth0
[  476.006600] netdevsim netdevsim737 eni737np1: renamed from eth1
[  476.091105] Could not find device with ifindex 2000 in netnsfd 11
[  476.091242] Could not find netns with fd: 2000
[  476.091342] Cannot link a netdevsim to itself
[  476.091459] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).