[  476.644858] netdevsim netdevsim375 eni375np1: renamed from eth0
[  476.645747] netdevsim netdevsim515 eni515np1: renamed from eth1
[  476.739222] Could not find device with ifindex 2000 in netnsfd 11
[  476.739316] Could not find netns with fd: 2000
[  476.739361] Cannot link a netdevsim to itself
[  476.739413] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).