[  473.042618] netdevsim netdevsim269 eni269np1: renamed from eth0
[  473.043227] netdevsim netdevsim566 eni566np1: renamed from eth1
[  473.123094] Could not find device with ifindex 2000 in netnsfd 11
[  473.123179] Could not find netns with fd: 2000
[  473.123223] Cannot link a netdevsim to itself
[  473.123273] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).