[  821.691094][T15510] netdevsim netdevsim371 eni371np1: renamed from eth0
[  821.713636][T15509] netdevsim netdevsim678 eni678np1: renamed from eth1
[  822.293895][T15498] Could not find device with ifindex 2000 in netnsfd 11
[  822.294402][T15498] Could not find netns with fd: 2000
[  822.294757][T15498] Cannot link a netdevsim to itself
[  822.295182][T15498] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).