2.3.5
Aquila Mapping Scheme
The application level services which are specified by the user through a
browser specifying a application level profile in XML created by Aquila group.
This partial information is then mapped to servicecomponent profile (again
in XML) which are detailed requirements of the resources that we need to
reserve from the network.
The mapping is static meaning the classification of network services as is
done above in above 5 categories is sufficient to meet almost all application
level requirements. And for any given application requirement, we map it to
one of these services that most closely meet its requirement.
Before committing a resource reservation request, some admission con-
trol algorithm is used that ensures if sufficient resources are available to
meet the request. Above, method assumes DiffServ network. They have
beautifully and effectively solved the problem of mapping SLA which may
be specified using QML, HQML or using Aquila's applicationprofile DTDs
and service component DTDs into SLS (technical aspects of SLA require-
ments of applications) and then into 5 network services that most closely
meet its requirements.
The 5 network services as done in Aquila architecture are:
1. Premium Constant Bit rate (PCBR).
2. Premium Variable Bit rate (PVBR).
3. Premium Multimedia (PMM)
4. Premium Mission Critical (PMC)
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