[  512.104022] netdevsim netdevsim626 eni626np1: renamed from eth1
[  512.201143] netdevsim netdevsim483 eni483np1: renamed from eth0
[  512.408393] Could not find device with ifindex 2000 in netnsfd 11
[  512.408563] Could not find netns with fd: 2000
[  512.408642] Cannot link a netdevsim to itself
[  512.408743] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).