PONDER policy implementation and validation in a CIM and differentiated services framework

摘要: Policies are often used to define management strategies for networks, storage services or applications. Validation determines whether the policy implementation is feasible specific environment which it applies and requires checking that consistent with functional resource constraints within target environment. For example, do policies assume functionality operations not exist in routers, bandwidth excess of capacity data links? Where possible, static should be done prior deployment order detect invalid at design time, but there some policies, related allocation, depend on current state system, require must checked dynamically execution time. We show how PONDER can implemented validated differentiated (DiffServ) by using CIM (Common Information Model) as modelling framework network resources, this device independent. describe a DiffServ-metrics sub-model extension Network represents DiffServ traffic statistics Linux driver translates classes variables control respectively.