[  455.059954] netdevsim netdevsim509 eni509np1: renamed from eth0
[  455.060445] netdevsim netdevsim766 eni766np1: renamed from eth1
[  455.165035] Could not find device with ifindex 2000 in netnsfd 11
[  455.165149] Could not find netns with fd: 2000
[  455.165202] Cannot link a netdevsim to itself
[  455.165271] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).