[  490.297079] netdevsim netdevsim356 eni356np1: renamed from eth0
[  490.297672] netdevsim netdevsim726 eni726np1: renamed from eth1
[  490.379933] Could not find device with ifindex 2000 in netnsfd 11
[  490.380112] Could not find netns with fd: 2000
[  490.380237] Cannot link a netdevsim to itself
[  490.380375] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).