[  716.015540][T13070] netdevsim netdevsim257 eni257np1: renamed from eth0
[  716.033193][T13072] netdevsim netdevsim553 eni553np1: renamed from eth1
[  716.737928][T13058] Could not find device with ifindex 2000 in netnsfd 11
[  716.738822][T13058] Could not find netns with fd: 2000
[  716.739215][T13058] Cannot link a netdevsim to itself
[  716.739669][T13058] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).