[  489.870008] netdevsim netdevsim370 eni370np1: renamed from eth0
[  489.967670] netdevsim netdevsim630 eni630np1: renamed from eth1
[  490.174942] Could not find device with ifindex 2000 in netnsfd 11
[  490.175107] Could not find netns with fd: 2000
[  490.175182] Cannot link a netdevsim to itself
[  490.175272] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).