[  484.128583] netdevsim netdevsim691 eni691np1: renamed from eth1
[  484.223917] netdevsim netdevsim407 eni407np1: renamed from eth0
[  484.440429] Could not find device with ifindex 2000 in netnsfd 11
[  484.440831] Could not find netns with fd: 2000
[  484.440964] Cannot link a netdevsim to itself
[  484.441082] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).