Configuring communication services using policy groups
The invention is directed to configuring services in a packet switching network. Embodiments of the invention group existing service policies configured on network routers into policy groups, thereby enabling better management of service policies and policy overrides. This functionality can be useful for identifying redundant policies that may be eliminated by reconfiguring one or more of the network routers to reduce the overall network-wide number of policies, as well as provisioning new services in a manner that efficiently uses existing policies.
1. A method performed by a service platform for configuring a service in a packet switching network, said method comprising the steps of:
determining, by the service platform, a service access point to be affected by configuration of the service;
obtaining policy information associated with the service access point from a router of the packet switching network;
assigning the service access point to a policy group depending upon the policy information;
updating, by the router of the packet switching network, provisioning information associated with the service access point to configure the service based on the assignment of the service access point to the policy group.
2. The method of claim 1 , wherein the step of determining comprises receiving a notification of a configuration change associated with the service access point.
3. The method of claim 1 , wherein:
the step of obtaining comprises receiving an override policy affecting the service access point; and
the step of assigning comprises applying the override policy to the policy information.
4. The method of claim 3 further comprising removing the override policy from the router of the packet switching network.
5. The method of claim 1 , wherein the step of updating comprises changing the policy information to be in accordance with a policy associated with the policy group.
6. The method of claim 1 , wherein the step of updating comprises removing the policy information from the router when a policy associated with the policy group already exists on the router of the packet switching network.
7. The method of claim 1 , wherein the method further comprises removing the policy information from a management entity of the packet switching network when a policy associated with the policy group already exists on the management entity.
8. A system for configuring a service in a packet switching network, said system comprising:
an operating system interface communicatively coupling to a network management entity of the packet switching network; and
a memory including a service database for storing a plurality of policy groups and their associated policies,
a processor for executing a service application. wherein the service application:
determines a service access point to be affected by configuration of the service;
obtains, via the operating system, policy information associated with the service access point from a router of the packet switching network interface;
assigns the service access point to a policy group depending upon the policy information; and
updates, via the operating system interface, on the router of the packet switching network in accordance with the assignment, provisioning information associated with the service access point to configure the service.
9. The system of claim 8 , wherein with regard to the determining action, the operating system interface is configured to receive from the management entity a notification of a configuration change associated with the service access point.
10. The system of claim 8 , wherein:
with regard to the obtaining action, operating system interface is configured to receive from the management entity an override policy affecting the service access point; and
with regard to the assigning action, the service platform is operable to apply the override policy to the policy information before making the assignment.
11. The system of claim 10 wherein the processor executing the service application is configured to cause the override policy to be removed from the router.
12. The system of claim 8 , wherein with regard to the updating action, the processor executing the service application is configured to cause the policy information to be updated so as to be in accordance with a policy associated with the policy group.
13. The system of claim 8 , wherein the processor executing the service application is configured to cause step the policy information to be removed from the router when a policy associated with the policy group already exists on the router.
14. The system of claim 8 , wherein the processor executing the service application is configured to remove the policy information from the management entity when a policy associated with the policy group already exists on the management entity.
15. A method of configuring a service in a packet switching network, comprising the steps of:
determining a service access point to be affected by configuration of the service;
obtaining group policy information associated with the service access point from a router of the packet switching network;
comparing the group policy information associated with the service access point to policy information required to provision the service in order to determine whether the group policy information associated with the service access point matches the policy information required to provision the service; and
if the group policy information associated with the service access point does not match the policy information required to provision the service:
assigning the policy information required to provision the service to the service access point, and
sending the policy information required to provision the service to the service access point to the router of the packet switching network.