[  524.792493] netdevsim netdevsim731 eni731np1: renamed from eth1
[  524.889371] netdevsim netdevsim393 eni393np1: renamed from eth0
[  525.163491] Could not find device with ifindex 2000 in netnsfd 11
[  525.163691] Could not find netns with fd: 2000
[  525.163779] Cannot link a netdevsim to itself
[  525.163882] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).