[  481.863842] netdevsim netdevsim403 eni403np1: renamed from eth0
[  481.864543] netdevsim netdevsim670 eni670np1: renamed from eth1
[  481.947568] Could not find device with ifindex 2000 in netnsfd 11
[  481.947704] Could not find netns with fd: 2000
[  481.947808] Cannot link a netdevsim to itself
[  481.947923] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).