[  471.936196] netdevsim netdevsim440 eni440np1: renamed from eth0
[  471.936795] netdevsim netdevsim601 eni601np1: renamed from eth1
[  472.013411] Could not find device with ifindex 2000 in netnsfd 11
[  472.013491] Could not find netns with fd: 2000
[  472.013533] Cannot link a netdevsim to itself
[  472.013584] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).