[  489.295045] netdevsim netdevsim261 eni261np1: renamed from eth0
[  489.391724] netdevsim netdevsim737 eni737np1: renamed from eth1
[  489.613354] Could not find device with ifindex 2000 in netnsfd 11
[  489.613637] Could not find netns with fd: 2000
[  489.613722] Cannot link a netdevsim to itself
[  489.613822] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).