[  475.584247] netdevsim netdevsim337 eni337np1: renamed from eth0
[  475.585211] netdevsim netdevsim699 eni699np1: renamed from eth1
[  475.672703] Could not find device with ifindex 2000 in netnsfd 11
[  475.672805] Could not find netns with fd: 2000
[  475.672848] Cannot link a netdevsim to itself
[  475.672902] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).