[  522.991745] netdevsim netdevsim279 eni279np1: renamed from eth0
[  523.088380] netdevsim netdevsim641 eni641np1: renamed from eth1
[  523.317261] Could not find device with ifindex 2000 in netnsfd 11
[  523.317422] Could not find netns with fd: 2000
[  523.317508] Cannot link a netdevsim to itself
[  523.317610] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).