[  805.902428][T15618] netdevsim netdevsim257 eni257np1: renamed from eth0
[  805.919092][T15619] netdevsim netdevsim590 eni590np1: renamed from eth1
[  806.683483][T15606] Could not find device with ifindex 2000 in netnsfd 11
[  806.684349][T15606] Could not find netns with fd: 2000
[  806.684908][T15606] Cannot link a netdevsim to itself
[  806.685582][T15606] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).