Abstract: A system and method for a cell switching optical network. A block of data is buffered at an edge node and sliced into data slices. Slice headers are pre-appended to each data slice. The data slices are then scheduled for transmission onto an optical switching network during fixed time slots defined on a per carrier wavelength basis.

Abstract: Disclosed are systems and methods that facilitate spam detection and prevention at least in part by building or training filters using advanced IP address and/or URL features in connection with machine learning techniques. A variety of advanced IP address related features can be generated from performing a reverse IP lookup. Similarly, many different advanced URL based features can be created from analyzing at least a portion of any one URL detected in a message.

Abstract: A method and system for label-based packet forwarding among multiple forwarding elements is described. The system includes a plurality of forwarding elements to forward a data packet from an ingress port at which the data packet is received from a network to an egress port from which the data packet will be transmitted to a next hop in the network and a control element coupled to the plurality of forwarding elements to control the forwarding elements. Each forwarding element has one or more label switch tables with one or entries to label data packets for forwarding along a path from the ingress port of one of the plurality of forwarding elements to the egress port of another of the plurality of forwarding elements.

Abstract: Described are a system and method of transmitting a time slot status message between nodes in a SONET network. One or more time slots in a SONET link may be allocated to provision a SONET circuit. Upon provisioning or de-provisioning the SONET circuit, a time slot status message may be transmitted to one or more non-participating nodes in the SONET network to indicate a change in status of one or more time slots of the SONET link.

Abstract: Disclosed are a system and method of transmitting a data message from a first node to a second node in SONET frames over a plurality of aggregated SONET links. The data message may be partitioned into a plurality of message segments at the first node. At least some of the message segments may be encapsulated in SONET frames for transmission to the second node over the aggregated SONET links.

Abstract: Disclosed are a system, method and device for selecting a mapping for a data path coupling path terminating equipment (PTE) at a first node to PTE at a second node. The first node may transmit a mapping request message to the second node specifying one or more candidate mappings. The second node may then reply with a selection of one of the candidate mappings or one or more alternative mappings.

Abstract: An algorithm for dynamic provisioning of fail-over support in Generalized Multi-Protocol Label Switching (“GMPLS”) enabled networks is disclosed. A Fault-Tolerant Routing and Wavelength Assignment (“FT-RWA”) scheme uses a pseudo-dynamic mechanism to provide such fail-over support for the GMPLS networks. The FT-RWA scheme is capable of recovering from channel and link failures within the GMPLS network. When a channel failure occurs, some wavelength channels on the link fail. As a result, traffic on the affected light paths are switched to any unused and reserved wavelengths on the same link. If no wavelengths are available, the failure is perceived as a link failure. When a link failure occurs, all or part of the traffic is redirected to a neighboring node, designated as a “redirector”. The redirector node calculates alternate routes to the destination of that link and creates a light path on a suitable route when a failure occurs.

Abstract: A flow control system may include a network device having a plurality of network interfaces for receiving and transmitting packets of data, a control element associated with the network device to receive from a security endpoint a security information event which includes rules for decrypting or routing an encrypted packet, and a routing element associated with the network device to route packets based on the rules provided in the security information event.

Abstract: A protocol-independent framework that facilitates routing and switching in a network that has hybrid nodes is described. Using the framework, optical paths are established between and among nodes statically and dynamically. When the paths are established dynamically, the paths maybe explicitly established or shared. Traffic is transported using switching wavelengths, routing wavelengths, and/or control wavelengths. Traffic transported on switching wavelengths is switched in the optical domain. Traffic transported on routing wavelengths is routed according to the OSI reference model.