[  481.488402] netdevsim netdevsim690 eni690np1: renamed from eth1
[  481.589048] netdevsim netdevsim350 eni350np1: renamed from eth0
[  481.971363] Could not find device with ifindex 2000 in netnsfd 11
[  481.971534] Could not find netns with fd: 2000
[  481.971631] Cannot link a netdevsim to itself
[  481.971761] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).