[  536.412113] netdevsim netdevsim738 eni738np1: renamed from eth1
[  536.509512] netdevsim netdevsim486 eni486np1: renamed from eth0
[  536.718877] Could not find device with ifindex 2000 in netnsfd 11
[  536.719099] Could not find netns with fd: 2000
[  536.719208] Cannot link a netdevsim to itself
[  536.719324] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).