[  487.328680] netdevsim netdevsim371 eni371np1: renamed from eth0
[  487.329518] netdevsim netdevsim639 eni639np1: renamed from eth1
[  487.437863] Could not find device with ifindex 2000 in netnsfd 11
[  487.438033] Could not find netns with fd: 2000
[  487.438156] Cannot link a netdevsim to itself
[  487.438302] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).