[  523.356135] netdevsim netdevsim489 eni489np1: renamed from eth0
[  523.454105] netdevsim netdevsim575 eni575np1: renamed from eth1
[  523.691361] Could not find device with ifindex 2000 in netnsfd 11
[  523.691525] Could not find netns with fd: 2000
[  523.691616] Cannot link a netdevsim to itself
[  523.691721] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).