[  473.068537] netdevsim netdevsim276 eni276np1: renamed from eth0
[  473.069196] netdevsim netdevsim697 eni697np1: renamed from eth1
[  473.149587] Could not find device with ifindex 2000 in netnsfd 11
[  473.149679] Could not find netns with fd: 2000
[  473.149730] Cannot link a netdevsim to itself
[  473.149784] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).