[  819.861789][T14752] netdevsim netdevsim511 eni511np1: renamed from eth0
[  819.884281][T14755] netdevsim netdevsim751 eni751np1: renamed from eth1
[  820.495521][T14740] Could not find device with ifindex 2000 in netnsfd 11
[  820.496494][T14740] Could not find netns with fd: 2000
[  820.497052][T14740] Cannot link a netdevsim to itself
[  820.497565][T14740] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).