[  486.246681] netdevsim netdevsim478 eni478np1: renamed from eth0
[  486.247089] netdevsim netdevsim547 eni547np1: renamed from eth1
[  486.349912] Could not find device with ifindex 2000 in netnsfd 11
[  486.350034] Could not find netns with fd: 2000
[  486.350086] Cannot link a netdevsim to itself
[  486.350149] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).