[  524.068309] netdevsim netdevsim508 eni508np1: renamed from eth0
[  524.165007] netdevsim netdevsim737 eni737np1: renamed from eth1
[  524.423471] Could not find device with ifindex 2000 in netnsfd 11
[  524.423643] Could not find netns with fd: 2000
[  524.423733] Cannot link a netdevsim to itself
[  524.423852] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).