[  454.740745] netdevsim netdevsim259 eni259np1: renamed from eth0
[  454.741469] netdevsim netdevsim688 eni688np1: renamed from eth1
[  454.825255] Could not find device with ifindex 2000 in netnsfd 11
[  454.825362] Could not find netns with fd: 2000
[  454.825409] Cannot link a netdevsim to itself
[  454.825494] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).