[  515.635063] netdevsim netdevsim556 eni556np1: renamed from eth1
[  515.732906] netdevsim netdevsim326 eni326np1: renamed from eth0
[  515.935402] Could not find device with ifindex 2000 in netnsfd 11
[  515.935562] Could not find netns with fd: 2000
[  515.935633] Cannot link a netdevsim to itself
[  515.935719] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).