[libvirt] [question] We can create two network of one same linux bridge or local ethernet. It is a bug?

We can create two network of one same linux bridge or local ethernet:

virsh # net-list --all Name State Autostart Persistent ---------------------------------------------------------- br1 active yes yes br2 active yes yes default active yes yes virsh # net-dumpxml br1 <network> <name>br1</name> <uuid>d5410814-1bea-b10d-04b8-9fbd3a1cfc65</uuid> <forward mode='bridge'/> <bridge name='br0' /> </network> virsh # net-dumpxml br2 <network> <name>br2</name> <uuid>99f20705-57cd-da31-f193-d13af4158792</uuid> <forward mode='bridge'/> <bridge name='br0' /> </network> virsh # net-list --all Name State Autostart Persistent ---------------------------------------------------------- br0 active yes yes br1 active yes yes default active yes yes virsh # net-dumpxml br0 <network> <name>br0</name> <uuid>a35c840a-9bdc-070d-43f5-8e834040aa42</uuid> <forward dev='eth0' mode='bridge'> <interface dev='eth0'/> </forward> </network> virsh # net-dumpxml br1 <network> <name>br1</name> <uuid>f1c87b80-2dfc-2a71-3fb6-56ef83daf29a</uuid> <forward dev='eth0' mode='bridge'> <interface dev='eth0'/> </forward> </network>