[  515.189726] netdevsim netdevsim315 eni315np1: renamed from eth0
[  515.286713] netdevsim netdevsim618 eni618np1: renamed from eth1
[  515.516750] Could not find device with ifindex 2000 in netnsfd 11
[  515.516922] Could not find netns with fd: 2000
[  515.516998] Cannot link a netdevsim to itself
[  515.517089] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).