[  485.822380] netdevsim netdevsim475 eni475np1: renamed from eth0
[  485.918199] netdevsim netdevsim767 eni767np1: renamed from eth1
[  486.142469] Could not find device with ifindex 2000 in netnsfd 11
[  486.142724] Could not find netns with fd: 2000
[  486.142803] Cannot link a netdevsim to itself
[  486.142891] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).