[  482.254819] netdevsim netdevsim497 eni497np1: renamed from eth0
[  482.356357] netdevsim netdevsim707 eni707np1: renamed from eth1
[  482.702754] Could not find device with ifindex 2000 in netnsfd 11
[  482.702882] Could not find netns with fd: 2000
[  482.702944] Cannot link a netdevsim to itself
[  482.703023] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).