[  478.750822] netdevsim netdevsim337 eni337np1: renamed from eth0
[  478.751898] netdevsim netdevsim762 eni762np1: renamed from eth1
[  478.851119] Could not find device with ifindex 2000 in netnsfd 11
[  478.851208] Could not find netns with fd: 2000
[  478.851254] Cannot link a netdevsim to itself
[  478.851306] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).