[  831.696294][T14761] netdevsim netdevsim274 eni274np1: renamed from eth0
[  831.715691][T14762] netdevsim netdevsim605 eni605np1: renamed from eth1
[  832.291883][T14749] Could not find device with ifindex 2000 in netnsfd 11
[  832.292409][T14749] Could not find netns with fd: 2000
[  832.292808][T14749] Cannot link a netdevsim to itself
[  832.293231][T14749] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).