[  515.485562] netdevsim netdevsim597 eni597np1: renamed from eth1
[  515.583446] netdevsim netdevsim458 eni458np1: renamed from eth0
[  515.821740] Could not find device with ifindex 2000 in netnsfd 11
[  515.822001] Could not find netns with fd: 2000
[  515.822137] Cannot link a netdevsim to itself
[  515.822310] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).