[  512.804211] netdevsim netdevsim725 eni725np1: renamed from eth1
[  512.901286] netdevsim netdevsim419 eni419np1: renamed from eth0
[  513.112570] Could not find device with ifindex 2000 in netnsfd 11
[  513.112778] Could not find netns with fd: 2000
[  513.112880] Cannot link a netdevsim to itself
[  513.112994] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).