[  521.014192] netdevsim netdevsim519 eni519np1: renamed from eth1
[  521.112071] netdevsim netdevsim324 eni324np1: renamed from eth0
[  521.343155] Could not find device with ifindex 2000 in netnsfd 11
[  521.343350] Could not find netns with fd: 2000
[  521.343429] Cannot link a netdevsim to itself
[  521.343529] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).