[  515.698405] netdevsim netdevsim636 eni636np1: renamed from eth1
[  515.796460] netdevsim netdevsim296 eni296np1: renamed from eth0
[  516.014188] Could not find device with ifindex 2000 in netnsfd 11
[  516.014432] Could not find netns with fd: 2000
[  516.014558] Cannot link a netdevsim to itself
[  516.014706] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).