[  483.301626] netdevsim netdevsim475 eni475np1: renamed from eth0
[  483.402502] netdevsim netdevsim737 eni737np1: renamed from eth1
[  483.719982] Could not find device with ifindex 2000 in netnsfd 11
[  483.720145] Could not find netns with fd: 2000
[  483.720228] Cannot link a netdevsim to itself
[  483.720337] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).