[  475.232227] netdevsim netdevsim311 eni311np1: renamed from eth0
[  475.329663] netdevsim netdevsim699 eni699np1: renamed from eth1
[  475.546485] Could not find device with ifindex 2000 in netnsfd 11
[  475.546648] Could not find netns with fd: 2000
[  475.546746] Cannot link a netdevsim to itself
[  475.546833] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).