[  480.314056] netdevsim netdevsim557 eni557np1: renamed from eth1
[  480.314412] netdevsim netdevsim493 eni493np1: renamed from eth0
[  480.405119] Could not find device with ifindex 2000 in netnsfd 11
[  480.405240] Could not find netns with fd: 2000
[  480.405293] Cannot link a netdevsim to itself
[  480.405350] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).