Abstract: A network system (10). The system comprises a network (WAN1, LAN1, LAN2) having an architectural model comprising a plurality of layers. The system also comprises a centralized manager node (CM1), coupled to the network. The system also comprises a plurality of routers (ERx) coupled to the network for communicating packets along the network and coupled to communicate with the centralized manager node. The centralized manager is programmed to perform the step (28) of communicating mapping information to each of the plurality of routers, and the mapping information comprises a correspondence of a behavior on a first of the plurality of layers with a behavior on a second of the plurality of layers.

Abstract: A network monitoring system (60). The system comprises storage circuitry (32) for storing network packet information, wherein the network packet information includes a predicted identifier. The network monitoring system also comprises at least one monitoring circuit (36) coupled to a network (70) along which network traffic flows in a form of packets. The at least one monitoring circuit programmed to perform the steps (44) of receiving a packet communicated along the network and determining whether the received packet is communicated between a source and destination in a first set of network nodes. Each packet in a sequence of communications between the source and the destination comprises a packet identifier that uniquely identifies the packet from all other communications in a flow between the source and the destination.

Abstract: A voice over IP (VOIP) network 8 includes a graphical proxy server 34 that allows “dumb” terminals (32) to act as SIP phones or H.323 phones; only the graphical proxy server (34) needs to support the underlying signaling protocol. The graphical proxy server (34) includes a graphical server (40) and a terminal management system (42). The terminal management system (42) handles the calls for each associated graphical terminal (32) and interacts with the graphical server (40) to provide a customized GUI for each graphical terminal (32) to display current call status. Each terminal (32) has a respective instance of a terminal controller program (56) in the terminal management system (42). The terminal controller for a terminal (32) controls the terminal's GUI responsive to incoming SIP messages directed to the terminal and generates SIP messages responsive to user interaction with the terminal's GUI.

Abstract: A voice over IP (VOIP) network 8 includes a graphical proxy server 34 that allows “dumb” terminals (32) to act as SIP phones or H.323 phones; only the graphical proxy server (34) needs to support the underlying signaling protocol. The graphical proxy server (34) includes a graphical server (40) and a terminal management system (42). The terminal management system (42) handles the calls for each associated graphical terminal (32) and interacts with the graphical server (40) to provide a customized GUI for each graphical terminal (32) to display current call status. Each terminal (32) has a respective instance of a terminal controller program (56) in the terminal management system (42). The terminal controller for a terminal (32) controls the terminal's GUI responsive to incoming SIP messages directed to the terminal and generates SIP messages responsive to user interaction with the terminal's GUI.

Abstract: A network system (10). The system comprises a network (WAN1, LAN1, LAN2) having an architectural model comprising a plurality of layers. The system also comprises a centralized manager node (CM1), coupled to the network. The system also comprises a plurality of routers (ERx) coupled to the network for communicating packets along the network and coupled to communicate with the centralized manager node. The centralized manager is programmed to perform the step (28) of communicating mapping information to each of the plurality of routers, and the mapping information comprises a correspondence of a behavior on a first of the plurality of layers with a behavior on a second of the plurality of layers.

Abstract: A network monitoring system (60). The system comprises storage circuitry (32) for storing network packet information, wherein the network packet information includes a predicted identifier. The network monitoring system also comprises at least one monitoring circuit (36) coupled to a network (70) along which network traffic flows in a form of packets. The at least one monitoring circuit programmed to perform the steps (44) of receiving a packet communicated along the network and determining whether the received packet is communicated between a source and destination in a first set of network nodes. Each packet in a sequence of communications between the source and the destination comprises a packet identifier that uniquely identifies the packet from all other communications in a flow between the source and the destination.