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< h1 > Network management architecture< / h1 >
< h2 > Architecture illustration< / h2 >
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The diagrams below illustrate some of the network configurations
enabled by the libvirt networking APIs
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< ul > < li > < strong > VLAN 1< / strong > . This virtual network has connectivity
to < code > LAN 2< / code > with traffic forwarded and NATed.
< / li > < li > < strong > VLAN 2< / strong > . This virtual network is completely
isolated from any physical LAN.
< / li > < li > < strong > Guest A< / strong > . The first network interface is bridged
to the physical < code > LAN 1< / code > . The second interface is connected
to a virtual network < code > VLAN 1< / code > .
< / li > < li > < strong > Guest B< / strong > . The first network interface is connected
to a virtual network < code > VLAN 1< / code > , giving it limited NAT
based connectivity to LAN2. It has a second network interface
connected to < code > VLAN 2< / code > . It acts a router allowing limited
traffic between the two VLANs, thus giving < code > Guest C< / code >
connectivity to the physical < code > LAN 2< / code > .
< / li > < li > < strong > Guest C< / strong > . The only network interface is connected
to a virtual network < code > VLAN 2< / code > . It has no direct connectivity
to a physical LAN, relying on < code > Guest B< / code > to route traffic
on its behalf.
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< h3 > Logical diagram< / h3 >
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< img src = "libvirt-net-logical.png" alt = "Logical network architecture" / > < / p >
< h3 > Physical diagram< / h3 >
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