[  486.257337] netdevsim netdevsim726 eni726np1: renamed from eth1
[  486.357838] netdevsim netdevsim492 eni492np1: renamed from eth0
[  487.042429] Could not find device with ifindex 2000 in netnsfd 11
[  487.042612] Could not find netns with fd: 2000
[  487.042711] Cannot link a netdevsim to itself
[  487.042873] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).