[  472.942918] netdevsim netdevsim302 eni302np1: renamed from eth0
[  472.944137] netdevsim netdevsim740 eni740np1: renamed from eth0
[  473.029686] Could not find device with ifindex 2000 in netnsfd 11
[  473.029818] Could not find netns with fd: 2000
[  473.029919] Cannot link a netdevsim to itself
[  473.030041] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).