[  522.896330] netdevsim netdevsim330 eni330np1: renamed from eth0
[  522.993491] netdevsim netdevsim660 eni660np1: renamed from eth1
[  523.239555] Could not find device with ifindex 2000 in netnsfd 11
[  523.239727] Could not find netns with fd: 2000
[  523.239802] Cannot link a netdevsim to itself
[  523.239889] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).