[  461.688041] netdevsim netdevsim291 eni291np1: renamed from eth0
[  461.688792] netdevsim netdevsim524 eni524np1: renamed from eth1
[  461.794495] Could not find device with ifindex 2000 in netnsfd 11
[  461.794696] Could not find netns with fd: 2000
[  461.794827] Cannot link a netdevsim to itself
[  461.794986] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).