Policy-Based Networking: Architecture and Algorithms

Policy Constraint Validation

After the policies are specified as a set of rules, or as entries in a set of tables, they must be validated to ensure that they satisfy the syntactic and semantic constraints that are imposed on them by the usage scenario and the mechanisms used to describe the policies. These constraints can be of various types. They are discussed briefly in this section.

Syntax Validation

The first type of validation is to ensure that the syntax for policy specification is valid. Syntactic validation depends on the language that is used by a policy management tool to describe policies. The policies are input to the validation module in a descriptive format. This format is different among different management tools. Most often, ...