[  518.990698] netdevsim netdevsim755 eni755np1: renamed from eth1
[  519.088622] netdevsim netdevsim461 eni461np1: renamed from eth0
[  519.321479] Could not find device with ifindex 2000 in netnsfd 11
[  519.321640] Could not find netns with fd: 2000
[  519.321736] Cannot link a netdevsim to itself
[  519.321826] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).