[  437.207054] netdevsim netdevsim357 eni357np1: renamed from eth0
[  437.208113] netdevsim netdevsim707 eni707np1: renamed from eth0
[  437.290595] Could not find device with ifindex 2000 in netnsfd 11
[  437.290693] Could not find netns with fd: 2000
[  437.290745] Cannot link a netdevsim to itself
[  437.290799] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).