[  493.983624] netdevsim netdevsim319 eni319np1: renamed from eth0
[  493.984149] netdevsim netdevsim523 eni523np1: renamed from eth1
[  494.067976] Could not find device with ifindex 2000 in netnsfd 11
[  494.068063] Could not find netns with fd: 2000
[  494.068104] Cannot link a netdevsim to itself
[  494.068170] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).