[  810.474229][T15786] netdevsim netdevsim440 eni440np1: renamed from eth0
[  810.481567][T15785] netdevsim netdevsim571 eni571np1: renamed from eth1
[  811.111650][T15772] Could not find device with ifindex 2000 in netnsfd 11
[  811.112120][T15772] Could not find netns with fd: 2000
[  811.113234][T15772] Cannot link a netdevsim to itself
[  811.113758][T15772] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).