[  489.736260] netdevsim netdevsim340 eni340np1: renamed from eth0
[  489.832184] netdevsim netdevsim737 eni737np1: renamed from eth1
[  490.052562] Could not find device with ifindex 2000 in netnsfd 11
[  490.052998] Could not find netns with fd: 2000
[  490.053126] Cannot link a netdevsim to itself
[  490.053258] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).