[  480.672623] netdevsim netdevsim285 eni285np1: renamed from eth0
[  480.773983] netdevsim netdevsim721 eni721np1: renamed from eth1
[  481.107047] Could not find device with ifindex 2000 in netnsfd 11
[  481.107192] Could not find netns with fd: 2000
[  481.107264] Cannot link a netdevsim to itself
[  481.107355] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).