5359 results about "Network layer" patented technology

A runtime adaptable search processor is disclosed. The search processor provides high speed content search capability to meet the performance need of network line rates growing to 1 Gbps, 10 Gbps and higher. The search processor provides a unique combination of NFA and DFA based search engines that can process incoming data in parallel to perform the search against the specific rules programmed in the search engines. The processor architecture also provides capabilities to transport and process Internet Protocol (IP) packets from Layer 2 through transport protocol layer and may also provide packet inspection through Layer 7. Further, a runtime adaptable processor is coupled to the protocol processing hardware and may be dynamically adapted to perform hardware tasks as per the needs of the network traffic being sent or received and / or the policies programmed or services or applications being supported. A set of engines may perform pass-through packet classification, policy processing and / or security processing enabling packet streaming through the architecture at nearly the full line rate. A high performance content search and rules processing security processor is disclosed which may be used for application layer and network layer security. Scheduler schedules packets to packet processors for processing. An internal memory or local session database cache stores a session information database for a certain number of active sessions. The session information that is not in the internal memory is stored and retrieved to / from an additional memory. An application running on an initiator or target can in certain instantiations register a region of memory, which is made available to its peer(s) for access directly without substantial host intervention through RDMA data transfer. A security system is also disclosed that enables a new way of implementing security capabilities inside enterprise networks in a distributed manner using a protocol processing hardware with appropriate security features.

In accordance with the present invention, there is provided a high-speed wireless backbone connection, Backbone Connection Facilitator (BCF), to create a wireless home network, which may consist of many short-range wired / wireless networks. BCF dynamically creates concurrent data pipelines to meet the data bandwidth demand to transfer packets from one short-range wired / wireless network to another. BCF employs the newly developed antenna technologies (ex. MIMO, SDMA) to minimize the transmit power, to reduce the interferences, and to support the real time communication.BCF contains the BCF-PHY layer, the BCF-Data-Link-Layer, and the BCF-Network-Layer. The BCF-PHY layer consists of antenna array, a PHY Base Band controller, and a digital beam former. The BCF-Data-Link-Layer provides the MAC functionality. The BCF-Network-Layer assembles the packet, provides the source and destination address, and provides the BCF-PHY beam forming information. The BCF-Network-Layer is also responsible for parsing and assembling the packet payloads for the high-speed backbone connection.

A method is provided for implementing a firewall in a firewall architecture. The firewall architecture includes a plurality of network layers and a first firewall engine. The layers send packets and packet information to the first firewall engine, maintain and pass packet context to subsequent layers, and process the packets. The first firewall engine compares the packet information to one or more installed filters and returns an action to the layers indicating how to treat the packet.

A system for analyzing a packet-based network includes a wireless network analysis processing device that is configured to receive correlated packet records representative of the order in which corresponding packets are transmitted in a wireless network. The correlated packet records include media access control (MAC) layer data and network layer data for each corresponding packet. The MAC layer data and network layer data are processed to generate network topology data representative of the network topology, generate packet flow data representative of the flow of packets between devices at the MAC layer and across the network at the network layer, and measurement data relating to the packet flow data.