[  521.489420] netdevsim netdevsim475 eni475np1: renamed from eth0
[  521.586833] netdevsim netdevsim692 eni692np1: renamed from eth1
[  521.814658] Could not find device with ifindex 2000 in netnsfd 11
[  521.814833] Could not find netns with fd: 2000
[  521.814915] Cannot link a netdevsim to itself
[  521.815025] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).