[  838.083338][T15656] netdevsim netdevsim331 eni331np1: renamed from eth0
[  838.112488][T15657] netdevsim netdevsim754 eni754np1: renamed from eth1
[  838.796180][T15644] Could not find device with ifindex 2000 in netnsfd 11
[  838.797353][T15644] Could not find netns with fd: 2000
[  838.797915][T15644] Cannot link a netdevsim to itself
[  838.798590][T15644] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).