[  484.086947] netdevsim netdevsim334 eni334np1: renamed from eth0
[  484.188193] netdevsim netdevsim712 eni712np1: renamed from eth1
[  484.581226] Could not find device with ifindex 2000 in netnsfd 11
[  484.581398] Could not find netns with fd: 2000
[  484.581494] Cannot link a netdevsim to itself
[  484.581613] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).