[  514.526757] netdevsim netdevsim321 eni321np1: renamed from eth0
[  514.624601] netdevsim netdevsim602 eni602np1: renamed from eth1
[  514.830521] Could not find device with ifindex 2000 in netnsfd 11
[  514.830673] Could not find netns with fd: 2000
[  514.830743] Cannot link a netdevsim to itself
[  514.830830] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).