[  879.720262][T15736] netdevsim netdevsim438 eni438np1: renamed from eth0
[  879.735090][T15738] netdevsim netdevsim637 eni637np1: renamed from eth1
[  880.377576][T15724] Could not find device with ifindex 2000 in netnsfd 11
[  880.378249][T15724] Could not find netns with fd: 2000
[  880.378782][T15724] Cannot link a netdevsim to itself
[  880.379322][T15724] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).