[  473.358222] netdevsim netdevsim425 eni425np1: renamed from eth0
[  473.358607] netdevsim netdevsim667 eni667np1: renamed from eth1
[  473.439881] Could not find device with ifindex 2000 in netnsfd 11
[  473.439972] Could not find netns with fd: 2000
[  473.440019] Cannot link a netdevsim to itself
[  473.440082] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).