[  485.867606] netdevsim netdevsim508 eni508np1: renamed from eth0
[  485.868621] netdevsim netdevsim739 eni739np1: renamed from eth1
[  485.966108] Could not find device with ifindex 2000 in netnsfd 11
[  485.966191] Could not find netns with fd: 2000
[  485.966227] Cannot link a netdevsim to itself
[  485.966268] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).