[  756.490075][T14733] netdevsim netdevsim388 eni388np1: renamed from eth0
[  756.513649][T14736] netdevsim netdevsim647 eni647np1: renamed from eth1
[  757.078538][T14721] Could not find device with ifindex 2000 in netnsfd 11
[  757.079101][T14721] Could not find netns with fd: 2000
[  757.079461][T14721] Cannot link a netdevsim to itself
[  757.079878][T14721] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).