[  476.314626] netdevsim netdevsim510 eni510np1: renamed from eth0
[  476.315273] netdevsim netdevsim712 eni712np1: renamed from eth1
[  476.397447] Could not find device with ifindex 2000 in netnsfd 11
[  476.397523] Could not find netns with fd: 2000
[  476.397566] Cannot link a netdevsim to itself
[  476.397617] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).