[  514.262968] netdevsim netdevsim493 eni493np1: renamed from eth0
[  514.361165] netdevsim netdevsim693 eni693np1: renamed from eth1
[  514.546345] Could not find device with ifindex 2000 in netnsfd 11
[  514.546576] Could not find netns with fd: 2000
[  514.546697] Cannot link a netdevsim to itself
[  514.546837] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).