[  483.789445] netdevsim netdevsim485 eni485np1: renamed from eth0
[  483.789803] netdevsim netdevsim750 eni750np1: renamed from eth1
[  483.877160] Could not find device with ifindex 2000 in netnsfd 11
[  483.877258] Could not find netns with fd: 2000
[  483.877304] Cannot link a netdevsim to itself
[  483.877358] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).