[  486.892801] netdevsim netdevsim431 eni431np1: renamed from eth0
[  486.990356] netdevsim netdevsim733 eni733np1: renamed from eth1
[  487.213304] Could not find device with ifindex 2000 in netnsfd 11
[  487.213484] Could not find netns with fd: 2000
[  487.213561] Cannot link a netdevsim to itself
[  487.213653] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).