[  488.758396] netdevsim netdevsim691 eni691np1: renamed from eth1
[  488.854915] netdevsim netdevsim262 eni262np1: renamed from eth0
[  489.051299] Could not find device with ifindex 2000 in netnsfd 11
[  489.051526] Could not find netns with fd: 2000
[  489.051608] Cannot link a netdevsim to itself
[  489.051710] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).