[  491.079233] netdevsim netdevsim468 eni468np1: renamed from eth0
[  491.080187] netdevsim netdevsim670 eni670np1: renamed from eth1
[  491.173123] Could not find device with ifindex 2000 in netnsfd 11
[  491.173222] Could not find netns with fd: 2000
[  491.173265] Cannot link a netdevsim to itself
[  491.173315] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).