[  510.549536] netdevsim netdevsim634 eni634np1: renamed from eth1
[  510.647385] netdevsim netdevsim351 eni351np1: renamed from eth0
[  510.861781] Could not find device with ifindex 2000 in netnsfd 11
[  510.861946] Could not find netns with fd: 2000
[  510.862017] Cannot link a netdevsim to itself
[  510.862113] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).