[  512.257502] netdevsim netdevsim418 eni418np1: renamed from eth0
[  512.355000] netdevsim netdevsim726 eni726np1: renamed from eth1
[  512.565206] Could not find device with ifindex 2000 in netnsfd 11
[  512.565382] Could not find netns with fd: 2000
[  512.565454] Cannot link a netdevsim to itself
[  512.565541] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).