[  484.587166] netdevsim netdevsim296 eni296np1: renamed from eth0
[  484.688996] netdevsim netdevsim646 eni646np1: renamed from eth1
[  485.021122] Could not find device with ifindex 2000 in netnsfd 11
[  485.021249] Could not find netns with fd: 2000
[  485.021312] Cannot link a netdevsim to itself
[  485.021419] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).