[  486.275783] netdevsim netdevsim399 eni399np1: renamed from eth0
[  486.377200] netdevsim netdevsim557 eni557np1: renamed from eth1
[  486.690021] Could not find device with ifindex 2000 in netnsfd 11
[  486.690198] Could not find netns with fd: 2000
[  486.690291] Cannot link a netdevsim to itself
[  486.690416] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).