[  523.692646] netdevsim netdevsim489 eni489np1: renamed from eth0
[  523.790661] netdevsim netdevsim747 eni747np1: renamed from eth1
[  523.997540] Could not find device with ifindex 2000 in netnsfd 11
[  523.997708] Could not find netns with fd: 2000
[  523.997796] Cannot link a netdevsim to itself
[  523.997892] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).