[  508.896480] netdevsim netdevsim299 eni299np1: renamed from eth0
[  508.993824] netdevsim netdevsim611 eni611np1: renamed from eth1
[  509.181360] Could not find device with ifindex 2000 in netnsfd 11
[  509.181520] Could not find netns with fd: 2000
[  509.181606] Cannot link a netdevsim to itself
[  509.181710] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).