[  490.146485] netdevsim netdevsim459 eni459np1: renamed from eth0
[  490.147022] netdevsim netdevsim765 eni765np1: renamed from eth1
[  490.250065] Could not find device with ifindex 2000 in netnsfd 11
[  490.250165] Could not find netns with fd: 2000
[  490.250208] Cannot link a netdevsim to itself
[  490.250266] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).