[  833.497370][T15833] netdevsim netdevsim490 eni490np1: renamed from eth0
[  833.504059][T15834] netdevsim netdevsim517 eni517np1: renamed from eth1
[  834.132978][T15821] Could not find device with ifindex 2000 in netnsfd 11
[  834.133632][T15821] Could not find netns with fd: 2000
[  834.134112][T15821] Cannot link a netdevsim to itself
[  834.134660][T15821] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).