[  486.526493] netdevsim netdevsim271 eni271np1: renamed from eth0
[  486.623466] netdevsim netdevsim557 eni557np1: renamed from eth1
[  486.841628] Could not find device with ifindex 2000 in netnsfd 11
[  486.841906] Could not find netns with fd: 2000
[  486.842016] Cannot link a netdevsim to itself
[  486.842122] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).