[  486.899482] netdevsim netdevsim516 eni516np1: renamed from eth1
[  486.997081] netdevsim netdevsim392 eni392np1: renamed from eth0
[  487.240707] Could not find device with ifindex 2000 in netnsfd 11
[  487.240910] Could not find netns with fd: 2000
[  487.240996] Cannot link a netdevsim to itself
[  487.241096] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).