[  741.735620][T13056] netdevsim netdevsim291 eni291np1: renamed from eth0
[  741.750751][T13058] netdevsim netdevsim580 eni580np1: renamed from eth1
[  742.518170][T13044] Could not find device with ifindex 2000 in netnsfd 11
[  742.519149][T13044] Could not find netns with fd: 2000
[  742.519619][T13044] Cannot link a netdevsim to itself
[  742.520231][T13044] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).