[  455.711746] netdevsim netdevsim411 eni411np1: renamed from eth0
[  455.712275] netdevsim netdevsim635 eni635np1: renamed from eth1
[  455.799697] Could not find device with ifindex 2000 in netnsfd 11
[  455.799806] Could not find netns with fd: 2000
[  455.799851] Cannot link a netdevsim to itself
[  455.799902] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).