[  483.785894] netdevsim netdevsim256 eni256np1: renamed from eth0
[  483.887088] netdevsim netdevsim534 eni534np1: renamed from eth1
[  484.218407] Could not find device with ifindex 2000 in netnsfd 11
[  484.218560] Could not find netns with fd: 2000
[  484.218626] Cannot link a netdevsim to itself
[  484.218746] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).