[  525.704646] netdevsim netdevsim383 eni383np1: renamed from eth0
[  525.801311] netdevsim netdevsim686 eni686np1: renamed from eth1
[  526.046160] Could not find device with ifindex 2000 in netnsfd 11
[  526.046364] Could not find netns with fd: 2000
[  526.046471] Cannot link a netdevsim to itself
[  526.046594] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).