[  485.657806] netdevsim netdevsim507 eni507np1: renamed from eth0
[  485.758778] netdevsim netdevsim596 eni596np1: renamed from eth1
[  486.121506] Could not find device with ifindex 2000 in netnsfd 11
[  486.121699] Could not find netns with fd: 2000
[  486.121801] Cannot link a netdevsim to itself
[  486.121929] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).