[  485.860421] netdevsim netdevsim319 eni319np1: renamed from eth0
[  485.861040] netdevsim netdevsim748 eni748np1: renamed from eth1
[  485.958623] Could not find device with ifindex 2000 in netnsfd 11
[  485.958703] Could not find netns with fd: 2000
[  485.958734] Cannot link a netdevsim to itself
[  485.958772] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).