[  458.412663] netdevsim netdevsim476 eni476np1: renamed from eth0
[  458.415903] netdevsim netdevsim512 eni512np1: renamed from eth1
[  458.518618] Could not find device with ifindex 2000 in netnsfd 11
[  458.518764] Could not find netns with fd: 2000
[  458.518818] Cannot link a netdevsim to itself
[  458.518890] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).