[  703.493733] netdevsim netdevsim571 eni571np1: renamed from eth1
[  703.590495] netdevsim netdevsim334 eni334np1: renamed from eth0
[  703.813946] Could not find device with ifindex 2000 in netnsfd 11
[  703.814169] Could not find netns with fd: 2000
[  703.814268] Cannot link a netdevsim to itself
[  703.814374] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).