[  475.754862] netdevsim netdevsim615 eni615np1: renamed from eth1
[  475.757018] netdevsim netdevsim351 eni351np1: renamed from eth0
[  475.834166] Could not find device with ifindex 2000 in netnsfd 11
[  475.834265] Could not find netns with fd: 2000
[  475.834313] Cannot link a netdevsim to itself
[  475.834383] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).