[  483.471623] netdevsim netdevsim624 eni624np1: renamed from eth1
[  483.568577] netdevsim netdevsim453 eni453np1: renamed from eth0
[  483.793273] Could not find device with ifindex 2000 in netnsfd 11
[  483.793465] Could not find netns with fd: 2000
[  483.793565] Cannot link a netdevsim to itself
[  483.793682] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).