[  473.824037] netdevsim netdevsim497 eni497np1: renamed from eth0
[  473.824593] netdevsim netdevsim560 eni560np1: renamed from eth1
[  473.909171] Could not find device with ifindex 2000 in netnsfd 11
[  473.909299] Could not find netns with fd: 2000
[  473.909406] Cannot link a netdevsim to itself
[  473.909524] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).