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<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
%BOOK_ENTITIES;
]>

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<section id="runtime-allocation-virtual-network-resources">
    <title>Runtime Allocation of Virtual Network Resources</title>
    <para>When you define a new virtual network, all your settings for that network are stored in
        &PRODUCT;. The actual network resources are activated only when the first virtual
        machine starts in the network. When all virtual machines have left the virtual network, the
        network resources are garbage collected so they can be allocated again. This helps to
        conserve network resources.</para>
</section>