[  519.899924] netdevsim netdevsim693 eni693np1: renamed from eth1
[  519.997746] netdevsim netdevsim324 eni324np1: renamed from eth0
[  520.224967] Could not find device with ifindex 2000 in netnsfd 11
[  520.225120] Could not find netns with fd: 2000
[  520.225192] Cannot link a netdevsim to itself
[  520.225275] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).