[  478.431791] netdevsim netdevsim478 eni478np1: renamed from eth0
[  478.433006] netdevsim netdevsim527 eni527np1: renamed from eth0
[  478.522752] Could not find device with ifindex 2000 in netnsfd 11
[  478.522839] Could not find netns with fd: 2000
[  478.522879] Cannot link a netdevsim to itself
[  478.522934] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).