[  523.203274] netdevsim netdevsim333 eni333np1: renamed from eth0
[  523.300055] netdevsim netdevsim740 eni740np1: renamed from eth1
[  523.523692] Could not find device with ifindex 2000 in netnsfd 11
[  523.523867] Could not find netns with fd: 2000
[  523.523947] Cannot link a netdevsim to itself
[  523.524035] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).