[  490.551363] netdevsim netdevsim423 eni423np1: renamed from eth0
[  490.552214] netdevsim netdevsim697 eni697np1: renamed from eth1
[  490.653391] Could not find device with ifindex 2000 in netnsfd 11
[  490.653560] Could not find netns with fd: 2000
[  490.653682] Cannot link a netdevsim to itself
[  490.653826] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).