[  480.611552] netdevsim netdevsim511 eni511np1: renamed from eth0
[  480.712249] netdevsim netdevsim688 eni688np1: renamed from eth1
[  481.081769] Could not find device with ifindex 2000 in netnsfd 11
[  481.081962] Could not find netns with fd: 2000
[  481.082051] Cannot link a netdevsim to itself
[  481.082164] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).