[  475.092175] netdevsim netdevsim437 eni437np1: renamed from eth0
[  475.092472] netdevsim netdevsim516 eni516np1: renamed from eth1
[  475.182176] Could not find device with ifindex 2000 in netnsfd 11
[  475.182265] Could not find netns with fd: 2000
[  475.182307] Cannot link a netdevsim to itself
[  475.182358] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).