[  522.062850] netdevsim netdevsim304 eni304np1: renamed from eth0
[  522.160551] netdevsim netdevsim692 eni692np1: renamed from eth1
[  522.433856] Could not find device with ifindex 2000 in netnsfd 11
[  522.434141] Could not find netns with fd: 2000
[  522.434271] Cannot link a netdevsim to itself
[  522.434417] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).