Abstract: A policy engine in a policy-based, outsourced, network management system. In one embodiment, the management system is multi-layered, modular and stores device configuration data in non-device specific format, which are subsequently translated to device-specific format by lower layers of the management system. The non-device specific format is the same (e.g., XML) as that used to create the policies with the user GUI (e.g., browser) and transport them to the service center over the internet. A database stores a policy directory in a hierarchical format that is separate from a policy store (configuration store) for devices in a flat (non-hierarchical or parallel) format. In one embodiment, a policy engine develops policies in a hierarchical format, but then stores the device schema, or objects, in a low-level, flat database.

Abstract: An event manager for a remote network management system. The event manager provides dynamic response for the purposes of controlling policy updates, generation and deployment. Dynamic events are used to communicate the fact that policy changes/updates/creations have occurred. In prior art systems, a user would simply make a data update, and then the system would retrieve the latest data from the data storage synchronously.

Abstract: The present invention provides device configuration and policy configuration data to network devices over a public network, e.g., the internet. A secure communication link is first established over the public network to the network device. Next, policy and configuration information is downloaded to the network device using that secure communication link. In one embodiment, the communication link is an IPSec tunnel. In particular, the network policy may include a virtual private network (VPN) policy. The invention addresses the secure downloading of configuration and policy information, which has not been an issue in prior art devices where there was an ability to provide such information internally to a network, without the need to go over the internet.

Abstract: A modular remote network management system which can configure a customer's network over the internet. A first module receives customer descriptions of desired customer network policy configurations. Another module automatically translates that description into device-level policy configuration data. Finally, a third module transmits the device-level policy configuration data over the internet to the devices of the customer network.

Abstract: User interface and policy loading aspects of a policy-based, outsourced, network management system. In one aspect, a user selects policies using a graphical user interface (GUI) with a two paned window having a tree view of the policies in one pane. In another aspect, the policies are (1) created in the GUI format (e.g., XML), (2) sent over a network (e.g., the internet) to a service center in the same format, and (3) are loaded, manipulated and stored in the same format. In another aspect, the initial loading of the policies is done using a bulk loader in a logic layer. In another aspect, the logic layer also includes a configuration checker which handles changes or additions to policies in a finished network management system. Any aspects of the new or changed policy that are inconsistent with the finished system are parsed and stripped out. In another aspect, where the details of a new policy or change aren't specified, a base configuration creator creates a policy with minimal attributes.