[  485.031998] netdevsim netdevsim615 eni615np1: renamed from eth1
[  485.129320] netdevsim netdevsim318 eni318np1: renamed from eth0
[  485.333210] Could not find device with ifindex 2000 in netnsfd 11
[  485.333524] Could not find netns with fd: 2000
[  485.333605] Cannot link a netdevsim to itself
[  485.333697] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).