[  473.659522] netdevsim netdevsim344 eni344np1: renamed from eth0
[  473.659830] netdevsim netdevsim577 eni577np1: renamed from eth1
[  473.750258] Could not find device with ifindex 2000 in netnsfd 11
[  473.750403] Could not find netns with fd: 2000
[  473.750519] Cannot link a netdevsim to itself
[  473.750655] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).