[  490.173473] netdevsim netdevsim277 eni277np1: renamed from eth0
[  490.174315] netdevsim netdevsim573 eni573np1: renamed from eth1
[  490.270908] Could not find device with ifindex 2000 in netnsfd 11
[  490.271012] Could not find netns with fd: 2000
[  490.271059] Cannot link a netdevsim to itself
[  490.271119] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).