[  521.241324] netdevsim netdevsim518 eni518np1: renamed from eth1
[  521.339486] netdevsim netdevsim384 eni384np1: renamed from eth0
[  521.554207] Could not find device with ifindex 2000 in netnsfd 11
[  521.554371] Could not find netns with fd: 2000
[  521.554457] Cannot link a netdevsim to itself
[  521.554569] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).