[  524.796541] netdevsim netdevsim615 eni615np1: renamed from eth1
[  524.894518] netdevsim netdevsim382 eni382np1: renamed from eth0
[  525.136171] Could not find device with ifindex 2000 in netnsfd 11
[  525.136406] Could not find netns with fd: 2000
[  525.136517] Cannot link a netdevsim to itself
[  525.136641] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).