[  721.564319][T13055] netdevsim netdevsim314 eni314np1: renamed from eth0
[  721.588253][T13058] netdevsim netdevsim674 eni674np1: renamed from eth1
[  722.228896][T13043] Could not find device with ifindex 2000 in netnsfd 11
[  722.232628][T13043] Could not find netns with fd: 2000
[  722.233034][T13043] Cannot link a netdevsim to itself
[  722.233505][T13043] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).