[  472.416788] netdevsim netdevsim751 eni751np1: renamed from eth1
[  472.417248] netdevsim netdevsim323 eni323np1: renamed from eth0
[  472.490189] Could not find device with ifindex 2000 in netnsfd 11
[  472.490317] Could not find netns with fd: 2000
[  472.490421] Cannot link a netdevsim to itself
[  472.490533] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).