[  460.462730] netdevsim netdevsim712 eni712np1: renamed from eth1
[  460.463796] netdevsim netdevsim447 eni447np1: renamed from eth0
[  460.552143] Could not find device with ifindex 2000 in netnsfd 11
[  460.552286] Could not find netns with fd: 2000
[  460.552401] Cannot link a netdevsim to itself
[  460.552526] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).