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< h1 > Network management architecture< / h1 >
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< ul id = "toc" > < / ul >
< h2 > < a name = "architecture" > Architecture illustration< / a > < / h2 >
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< p >
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
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to < code > LAN 2< / code > with traffic forwarded and NATed.
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< / li >
< li > < strong > VLAN 2< / strong > . This virtual network is completely
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isolated from any physical LAN.
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< / li >
< li > < strong > Guest A< / strong > . The first network interface is bridged
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to the physical < code > LAN 1< / code > . The second interface is connected
to a virtual network < code > VLAN 1< / code > .
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< / li >
< li > < strong > Guest B< / strong > . The first network interface is connected
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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 >
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< li > < strong > Guest C< / strong > . The only network interface is connected
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to a virtual network < code > VLAN 2< / code > . It has no direct connectivity
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to a physical LAN, relying on < code > Guest B< / code > to route traffic
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on its behalf.
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< / li >
< / ul >
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< h3 > < a name = "logical" > Logical diagram< / a > < / h3 >
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< p class = "image" >
< img src = "libvirt-net-logical.png" alt = "Logical network architecture" / >
< / p >
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< h3 > < a name = "physical" > Physical diagram< / a > < / h3 >
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< p class = "image" >
< img src = "libvirt-net-physical.png" alt = "Physical network architecture" / >
< / p >
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