[  473.478172] netdevsim netdevsim262 eni262np1: renamed from eth0
[  473.478905] netdevsim netdevsim750 eni750np1: renamed from eth1
[  473.555806] Could not find device with ifindex 2000 in netnsfd 11
[  473.555882] Could not find netns with fd: 2000
[  473.555926] Cannot link a netdevsim to itself
[  473.555977] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).