[  481.078398] netdevsim netdevsim300 eni300np1: renamed from eth0
[  481.180217] netdevsim netdevsim658 eni658np1: renamed from eth1
[  481.572864] Could not find device with ifindex 2000 in netnsfd 11
[  481.573023] Could not find netns with fd: 2000
[  481.573112] Cannot link a netdevsim to itself
[  481.573224] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).