[  487.840387] netdevsim netdevsim762 eni762np1: renamed from eth1
[  487.937360] netdevsim netdevsim511 eni511np1: renamed from eth0
[  488.132940] Could not find device with ifindex 2000 in netnsfd 11
[  488.133246] Could not find netns with fd: 2000
[  488.133353] Cannot link a netdevsim to itself
[  488.133473] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).