[  777.303379][T14769] netdevsim netdevsim266 eni266np1: renamed from eth0
[  777.308053][T14771] netdevsim netdevsim644 eni644np1: renamed from eth1
[  777.863463][T14757] Could not find device with ifindex 2000 in netnsfd 11
[  777.864011][T14757] Could not find netns with fd: 2000
[  777.864370][T14757] Cannot link a netdevsim to itself
[  777.864775][T14757] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).