[  504.089158] netdevsim netdevsim331 eni331np1: renamed from eth0
[  504.089610] netdevsim netdevsim743 eni743np1: renamed from eth1
[  504.202727] Could not find device with ifindex 2000 in netnsfd 11
[  504.202874] Could not find netns with fd: 2000
[  504.202979] Cannot link a netdevsim to itself
[  504.203103] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).