[  521.619024] netdevsim netdevsim485 eni485np1: renamed from eth0
[  521.715972] netdevsim netdevsim684 eni684np1: renamed from eth1
[  521.988031] Could not find device with ifindex 2000 in netnsfd 11
[  521.988269] Could not find netns with fd: 2000
[  521.988382] Cannot link a netdevsim to itself
[  521.988506] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).