[  520.697626] netdevsim netdevsim653 eni653np1: renamed from eth1
[  520.794661] netdevsim netdevsim268 eni268np1: renamed from eth0
[  521.008353] Could not find device with ifindex 2000 in netnsfd 11
[  521.008511] Could not find netns with fd: 2000
[  521.008583] Cannot link a netdevsim to itself
[  521.008681] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).