[  520.986781] netdevsim netdevsim392 eni392np1: renamed from eth0
[  521.083225] netdevsim netdevsim724 eni724np1: renamed from eth1
[  521.314020] Could not find device with ifindex 2000 in netnsfd 11
[  521.314186] Could not find netns with fd: 2000
[  521.314256] Cannot link a netdevsim to itself
[  521.314358] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).