[  484.518011] netdevsim netdevsim312 eni312np1: renamed from eth0
[  484.618462] netdevsim netdevsim548 eni548np1: renamed from eth1
[  484.976864] Could not find device with ifindex 2000 in netnsfd 11
[  484.977037] Could not find netns with fd: 2000
[  484.977134] Cannot link a netdevsim to itself
[  484.977261] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).