[  512.541081] netdevsim netdevsim596 eni596np1: renamed from eth1
[  512.638854] netdevsim netdevsim313 eni313np1: renamed from eth0
[  512.870160] Could not find device with ifindex 2000 in netnsfd 11
[  512.870314] Could not find netns with fd: 2000
[  512.870385] Cannot link a netdevsim to itself
[  512.870472] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).