[  516.380417] netdevsim netdevsim709 eni709np1: renamed from eth1
[  516.477240] netdevsim netdevsim338 eni338np1: renamed from eth0
[  516.700568] Could not find device with ifindex 2000 in netnsfd 11
[  516.700739] Could not find netns with fd: 2000
[  516.700825] Cannot link a netdevsim to itself
[  516.700940] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).