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| Application No. | Application Title | Issue Date |
| 20110019550 | CONTENT SERVICE AGGREGATION SYSTEM A network content service apparatus includes a set of compute elements adapted to perform a set of network services; and a switching fabric coupling compute elements in said set of compute elements. The set of network services includes firewall protection, Network Addre... | 01/27/2011 |
| 20110013508 | NON-STOP FORWARDING IN A MULTI-CHASSIS ROUTER State information is synchronized between a plurality of routing engines in a multi-chassis router according to a synchronization gradient. An example multi-chassis router is described that includes a primary routing engine and a standby routing engine in each chassis. ... | 01/20/2011 |
| 20100322249 | DISCOVERING PATH MAXIMUM TRANSMISSION UNIT SIZE Intermediate network devices, such as routers, are configured to discover a maximum transmission unit (MTU) for a path between two network endpoints by removing data from packets when the packet size exceeds a link MTU to a next hop. An example intermediate network devi... | 12/23/2010 |
| 20100309786 | MANAGING A NETWORK FLOW USING APPLICATION CLASSIFICATION INFORMATION AND ACTIVE SIGNALING RELAY Techniques for classifying and managing network flows associated with a network service using application classification information and active signaling relay are described. A network device, for example, includes a signaling interceptor and a network flow interface. T... | 12/09/2010 |
| 20100306542 | Password-authenticated asymmetric key exchange Communicating keys between network devices on a network using asymmetric cryptographic techniques, for which asymmetric keys may be derived from a single (same) password. Knowledge or partial knowledge of the password may be the only information shared between parties p... | 12/02/2010 |
| 20100296517 | NETWORK ROUTING USING INDIRECT NEXT HOP DATA A router maintains routing information including (i) route data representing destinations within a computer network, (ii) next hop data representing interfaces to neighboring network devices, and (iii) indirect next hop data that maps a subset of the routes represented ... | 11/25/2010 |
| 20100284403 | SCALABLE ROUTING POLICY CONSTRUCTION USING DYNAMIC REDEFINITION OF ROUTING PREFERENCE VALUE In general, techniques are described to dynamically redefine a preference value used during route resolution. A network device, such as a router, may implement the techniques to improve a usability aspect of the router. The router may comprise an interface card that rec... | 11/11/2010 |
| 20100284399 | MEDIA PATH OPTIMIZATION FOR MULTIMEDIA OVER INTERNET PROTOCOL Methods for optimizing the media path between multimedia endpoints in a network are described. One embodiment allows avoiding having to relay the media traffic through a central device, such as a border controller's media controller element, and lets endpoints communica... | 11/11/2010 |
| 20100281539 | DETECTING MALICIOUS NETWORK SOFTWARE AGENTS This disclosure describes techniques for determining whether a network session originates from an automated software agent. In one example, a network device, such as a router, includes a network interface to receive packets of a network session, a bot detection module t... | 11/04/2010 |
| 20100278076 | AUTOMATIC CONFIGURATION OF VIRTUAL NETWORK SWITCHES In general, techniques are described in which a plurality of network switches automatically configure themselves to operate as a single virtual network switch. A virtual switch is a collection of individual switch devices that operate like as single network switch. As d... | 11/04/2010 |
| 20100265947 | CONTROLLING DATA LINK LAYER ELEMENTS WITH NETWORK LAYER ELEMENTS A network layer device controls provision of data link layer functionality by a data link layer device to provide a requested multimedia service to a subscriber. For example, the network layer device may control the performance of multicast elaboration by the data link ... | 10/21/2010 |
| 20100238934 | EFFICIENT DISCOVERY AND VERIFICATION OF PATHS THROUGH A MESHED OVERLAY NETWORK The present invention provides an efficient system and method for routing information through a dynamic network. The system includes at least one ingress point and one egress point. The ingress and egress point cooperate to form a virtual circuit for routing packets to ... | 09/23/2010 |
| 20100214913 | LOAD BALANCING NETWORK TRAFFIC ON A LABEL SWITCHED PATH USING RESOURCE RESERVATION PROTOCOL WITH TRAFFIC ENGINEERING Techniques are describe for establishing an overall label switched path (LSP) for load balancing network traffic being sent across a network using the a resource reservation protocol such as Resource Reservation Protocol with Traffic Engineering (RSVP-TE). The technique... | 08/26/2010 |
| 20100192225 | EFFICIENT APPLICATION IDENTIFICATION WITH NETWORK DEVICES In general, techniques are described for efficiently implementing application identification within network devices. In particular, a network device includes a control unit that stores data defining a group Deterministic Finite Automata (DFA) and an individual DFA. The ... | 07/29/2010 |
| 20100191839 | SYNCHRONIZING RESOURCE BINDINGS WITHIN COMPUTER NETWORK In general, techniques are described for synchronizing resource bindings within computer networks. An intermediate network device comprising an interface card and a control unit may implement these techniques. The interface card receives a message from a server that all... | 07/29/2010 |
| 20100191813 | AUTOMATICALLY RELEASING RESOURCES RESERVED FOR SUBSCRIBER DEVICES WITHIN A BROADBAND ACCESS NETWORK In general, techniques are described for automatically releasing network resources reserved for use by network devices within a network. In particular, a network device, such as a router, may include an interface card that receives a first and a second message from resp... | 07/29/2010 |
| 20100177752 | NETWORK-BASED MICRO MOBILITY IN CELLULAR NETWORKS USING EXTENDED VIRTUAL PRIVATE LAN SERVICE A new architecture provides network-based mobility in cellular networks that is built on Internet Protocol (IP)/Multiprotocol Label Switching (MPLS) technologies, such as Virtual Private Local Area Network (LAN) Service (VPLS), the Border Gateway Protocol (BGP) and BGP ... | 07/15/2010 |
| 20100177685 | TRANSFER OF MOBILE SUBSCRIBER CONTEXT IN CELLULAR NETWORKS USING EXTENDED ROUTING PROTOCOL A new architecture provides network-based mobility in cellular networks that is built on Internet Protocol (IP)/Multiprotocol Label Switching (MPLS) technologies, such as Virtual Private Local Area Network (LAN) Service (VPLS), the Border Gateway Protocol (BGP) and BGP ... | 07/15/2010 |
| 20100177674 | NETWORK-BASED MACRO MOBILITY IN CELLULAR NETWORKS USING AN EXTENDED ROUTING PROTOCOL A new architecture provides network-based mobility in cellular networks that is built on Internet Protocol (IP)/Multiprotocol Label Switching (MPLS) technologies, such as Virtual Private Local Area Network (LAN) Service (VPLS), the Border Gateway Protocol (BGP) and BGP ... | 07/15/2010 |
| 20100124231 | SUMMARIZATION AND LONGEST-PREFIX MATCH WITHIN MPLS NETWORKS In general, techniques are described for summarizing label mappings and thereby enabling longest-prefix match within Multi-Protocol Label Switching (MPLS) networks. More specifically, a first router included within a first area of a network comprises a control unit that... | 05/20/2010 |
| 20100118881 | ROUTING NETWORK PACKETS BASED ON ELECTRICAL POWER PROCUREMENT ARRANGEMENTS In general, this disclosure describes techniques of selecting routes for network packets through a computer network based, at least in part, on electrical power procurement arrangements of devices in the computer network. As described herein, there may be a plurality of... | 05/13/2010 |
| 20100095367 | DYNAMIC ACCESS CONTROL POLICY WITH PORT RESTRICTIONS FOR A NETWORK SECURITY APPLIANCE A network security appliance supports definition of a security policy to control access to a network. The security policy is defined by match criteria including a layer seven network application, a static port list of layer four ports for a transport-layer protocol, and... | 04/15/2010 |
| 20100071024 | HIERARCHICAL APPLICATION OF SECURITY SERVICES WITHIN A COMPUTER NETWORK In general, techniques are described for hierarchical application of security services with a network device. In particular, the network device receives security classification information that maps a security class to one or more computing devices. The security class i... | 03/18/2010 |
| 20100070800 | AUTOMATIC HARDWARE-BASED RECOVERY OF A COMPROMISED COMPUTER In general, techniques are described for hardware-based detection and automatic restoration of a computing device from a compromised state. Moreover, the techniques provide for automatic, hardware-based restoration of selective software components from a trusted reposit... | 03/18/2010 |
| 20100043068 | ROUTING DEVICE HAVING INTEGRATED MPLS-AWARE FIREWALL An MPLS-aware firewall allows firewall security policies to be applied to MPLS traffic. The firewall, which may be integrated within a routing device, can be configured into multiple virtual security systems. The routing device provides a user interface by which a user ... | 02/18/2010 |
| 20100043067 | SCALABLE SECURITY SERVICES FOR MULTICAST IN A ROUTER HAVING INTEGRATED ZONE-BASED FIREWALL A multicast-capable firewall allows firewall security policies to be applied to multicast traffic. The multicast-capable firewall may be integrated within a routing device, thus allowing a single device to provide both routing functionality, including multicast support,... | 02/18/2010 |
| 20090328219 | DYNAMIC POLICY PROVISIONING WITHIN NETWORK SECURITY DEVICES The invention is directed to techniques for dynamic policy provisioning. A network security device may comprise a memory that stores a first policy that identifies a first set of patterns that correspond to a first set of network attacks and a second policy, and a contr... | 12/31/2009 |
| 20090327827 | RULE-BASED NETWORKING DEVICE A networking system, device, and method are provided. The networking device typically includes a user-defined ruleset including HTTP request rules and HTTP response rules. The networking device may further include a request processor configured to receive an incoming HT... | 12/31/2009 |
| 20090279701 | CONTROLLING ACCESS NODES WITH NETWORK TRANSPORT DEVICES WITHIN WIRELESS MOBILE NETWORKS A network controls provision of access functionality by an access node to provide a network service to a subscriber device. For example, the network device may control the queuing and forwarding of packets by the access node to facilitate packet transmission according t... | 11/12/2009 |
| 20090274046 | TRANSPARENT OPTIMIZATION FOR TRANSMISSION CONTROL PROTOCOL FLOW CONTROL A system and method that optimizes transmission control protocol (TCP) flow control without intruding upon TCP's core algorithms. A control module relatively near a sender's local area network (LAN) automatically identifies a packet flow that has become window-limited. ... | 11/05/2009 |
| 20090259736 | LABEL-BASED TARGET HOST CONFIGURATION FOR A SERVER LOAD BALANCER A method for configuring a server load balancer comprises receiving a user command defining a load balancing group capable of representing a plurality of target host servers within a network, and receiving user commands adding the target host servers to the load balanci... | 10/15/2009 |
| 20090245260 | METHOD AND APPARATUS PROVIDING MEDIA AGGREGATION IN A PACKET-SWITCHED NETWORK Techniques are described for aggregating multiple media packets to improve end-to-end bandwidth efficiency. The techniques include using an RTP aggregation protocol that is not sensitive to packet loss to aggregate multiple media packets under a single header. According... | 10/01/2009 |
| 20090219934 | SERVICE-SPECIFIC LOGICAL INTERFACES FOR PROVIDING VPN CUSTOMERS ACCESS TO EXTERNAL MULTICAST CONTENT A network device seamlessly handles multicast traffic flow between virtual private networks (VPNs) and content providers located external to the VPNs. For example, the network device, such as a router, comprises an interface card and a forwarding component. The forwardi... | 09/03/2009 |
| 20090201934 | SPOOF CHECKING WITHIN A LABEL SWITCHING COMPUTER NETWORK A label switching router (LSR) is described that spoof checks Multi-protocol Label Switching (MPLS) packets to prevent malicious or inadvertent injection of MPLS packets within a label switched path (LSP). The LSR ensures that MPLS packets received from an upstream labe... | 08/13/2009 |
| 20090175274 | TRANSMISSION OF LAYER TWO (L2) MULTICAST TRAFFIC OVER MULTI-PROTOCOL LABEL SWITCHING NETWORKS Principles of the invention relate to techniques for transmission of Layer 2 (L2) traffic over a point to multi-point (P2MP) label switched path (LSP) within a multi-protocol Label Switching (MPLS) network. A source or ingress network device may implement the techniques... | 07/09/2009 |
| 20090141717 | DYNAMIC BUILDING OF VLAN INTERFACES BASED ON SUBSCRIBER INFORMATION STRINGS Techniques are described that allow a network device, such as a router, to dynamically build VLAN interfaces based on subscriber information strings included within packets. In particular, the network device comprises an interface controller and a forwarding controller,... | 06/04/2009 |
| 20090135837 | METHOD OF COMMUNICATING PACKET MULTIMEDIA TO RESTRICTED ENDPOINTS A method, performed in a network element, for communicating packet multimedia data between a first endpoint and a second endpoint, the method comprising the machine-implemented steps of receiving an outbound multimedia data packet; determining if the outbound multimedia... | 05/28/2009 |
| 20090125633 | SERVER INITIATED SECURE NETWORK CONNECTION In general, the invention is directed to techniques for establishing secure connections with devices residing behind a security device. In accordance with the techniques, a managed device initiates a transmission control protocol (TCP) session to establish a TCP session... | 05/14/2009 |
| 20090067331 | ROUTING NETWORK PACKETS BASED ON ELECTRICAL POWER PROCUREMENT ARRANGEMENTS In general, this disclosure describes techniques of selecting routes for network packets through a computer network based, at least in part, on electrical power procurement arrangements of devices in the computer network. As described herein, there may be a plurality of... | 03/12/2009 |
| 20090041252 | EXCHANGE OF NETWORK ACCESS CONTROL INFORMATION USING TIGHTLY-CONSTRAINED NETWORK ACCESS CONTROL PROTOCOLS In general, techniques are described for securely exchanging network access control information. The techniques may be useful in situations where an endpoint device and an access control device perform a tightly-constrained handshake sequence of a network protocol when ... | 02/12/2009 |
