[  485.282194] netdevsim netdevsim334 eni334np1: renamed from eth0
[  485.383234] netdevsim netdevsim687 eni687np1: renamed from eth1
[  485.751368] Could not find device with ifindex 2000 in netnsfd 11
[  485.751514] Could not find netns with fd: 2000
[  485.751603] Cannot link a netdevsim to itself
[  485.751715] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).