[  484.207536] netdevsim netdevsim281 eni281np1: renamed from eth0
[  484.310119] netdevsim netdevsim700 eni700np1: renamed from eth1
[  484.674404] Could not find device with ifindex 2000 in netnsfd 11
[  484.674590] Could not find netns with fd: 2000
[  484.674717] Cannot link a netdevsim to itself
[  484.674828] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).