[  519.821171] netdevsim netdevsim386 eni386np1: renamed from eth0
[  519.918841] netdevsim netdevsim740 eni740np1: renamed from eth1
[  520.140033] Could not find device with ifindex 2000 in netnsfd 11
[  520.140237] Could not find netns with fd: 2000
[  520.140329] Cannot link a netdevsim to itself
[  520.140431] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).