[  514.721807] netdevsim netdevsim526 eni526np1: renamed from eth1
[  514.818496] netdevsim netdevsim427 eni427np1: renamed from eth0
[  515.054691] Could not find device with ifindex 2000 in netnsfd 11
[  515.054885] Could not find netns with fd: 2000
[  515.054969] Cannot link a netdevsim to itself
[  515.055081] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).