[  512.963491] netdevsim netdevsim296 eni296np1: renamed from eth0
[  513.060468] netdevsim netdevsim755 eni755np1: renamed from eth1
[  513.286945] Could not find device with ifindex 2000 in netnsfd 11
[  513.287162] Could not find netns with fd: 2000
[  513.287268] Cannot link a netdevsim to itself
[  513.287398] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).