[  510.326359] netdevsim netdevsim731 eni731np1: renamed from eth1
[  510.423712] netdevsim netdevsim281 eni281np1: renamed from eth0
[  510.673560] Could not find device with ifindex 2000 in netnsfd 11
[  510.673793] Could not find netns with fd: 2000
[  510.673902] Cannot link a netdevsim to itself
[  510.674006] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).