[  473.642417] netdevsim netdevsim409 eni409np1: renamed from eth0
[  473.643097] netdevsim netdevsim548 eni548np1: renamed from eth1
[  473.732279] Could not find device with ifindex 2000 in netnsfd 11
[  473.732368] Could not find netns with fd: 2000
[  473.732417] Cannot link a netdevsim to itself
[  473.732467] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).