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7415016 |
Method and system for VMAN protocol Layer-2 packet nested encapsulation
A method and system is provided in which MAN traffic is segregated at a customer and a provider domain level. A switch at the edge of the MAN encapsulates a data packet in a new header, which is...
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7415022 |
Network switching architecture with multiple table synchronization, and forwarding of both IP and IPX packets
A network switch for network communications includes a protocol determining means for determining whether an incoming packet is an IP packet or an IPX packet. L3 lookup tables, IP router tables,...
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7415020 |
Packet classification apparatus and method using field level tries
A packet classification apparatus and method using field level tries includes a main processing part for generating and maintaining the field level tries, which organize a multi-field packet by...
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7415019 |
Apparatus and method for collecting active route topology information in a mobile ad hoc network
A first MANET node that collects route information associated with a first route from a source MANET node to a destination MANET node in a mobile ad hoc network (MANET). The first MANET node...
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7415023 |
Method for classifying packets using multi-class structures
In one embodiment, a super class that contains a plurality of matching rules is generated. The matching rules of the super class are converted into a hierarchical arrangement of lookup tables and...
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7414970 |
Provision of static QoS control using dynamic service based policy mechanisms
An apparatus in one example may have: at least two endpoints operatively coupled to one another via an application function (AF) in a home network; a combined policy decision function (AAA-PDF)...
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7415018 |
IP Time to Live (TTL) field used as a covert channel
The Time to Live (TTL) field in an IP header is used as a covert channel in a communication system. More particularly the TTL field can be used to selectively mark packets with unique identifiers...
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7415017 |
Security through manipulation of virtual topography
Methods and apparatus are disclosed for improving network security through the manipulation of the apparent topology of the network. Such manipulation is accomplished by assigning multiple...
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7415024 |
System and method of annotating network packets
A system and method of transmitting network packets between network processing elements through links are disclosed. One or more configuration entities may allocate one or more fixed length slots...
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7414975 |
Protocol stack
There are disclosed processes and systems relating to protocol stacks. The protocol stack may be run entirely in a single memory space. There may be a communal memory region available to certain...
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7411955 |
3-layer VPN and constructing method thereof
A 3-layer Virtual Private Network (VPN) is disclosed and includes P devices and PE devices in the backbone network, a plurality of sites and CE devices in subscribers' VPNs, and Hierarchy of PE...
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7411917 |
Method and system for providing registration-based SIP NAT traversal
A system for providing network access translation device traversal to facilitate communications is provided. The system includes a network access translation (NAT) device, a first Session...
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7412529 |
Method for processing session information of session initiation protocol system and recorded medium thereof
A method for processing session information of an Internet protocol voice call system using a session initiation protocol (SIP), extracting session information by parsing a SIP Session Protocol...
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7411956 |
Methods and apparatus for routing packets
In a first aspect, a first method is provided that includes the steps of (1) providing a pointer that includes a first keytype field and a second keytype field; and (2) assigning a value to the...
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7411925 |
Network route processor using state-based switchover
Embodiments of the present invention provide for switchover from an active processor to a standby processor in a route processor system. An up-to-date copy of information used by a supervisor...
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7411958 |
Method and system for transferring data directly between storage devices in a storage area network
A method and system for performing a copy operation between storage devices coupled to a Fiber Channel switch element is provided. The Fiber Channel switch element receives a user command to copy...
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7411954 |
Efficient implementation of wildcard matching on variable-sized fields in content-based routing
Packet routing via payload inspection at routers in a core of a distributed network. Packets include subjects and attributes in addition to routing information. The subjects correspond with...
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7411957 |
Hardware filtering support for denial-of-service attacks
A system and method is provided for automatically identifying and removing malicious data packets, such as denial-of-service (DoS) packets, in an intermediate network node before the packets can be...
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7411902 |
Method and system for maintaining partial order of packets
A method and system for maintaining partial order of packets in packet processing modules is described. The system includes a memory and a plurality of packet processing modules to process packets...
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7411911 |
Network availability status detection device and method
According to an embodiment of the present invention, a device configured to send and receive messages over a first network and a second network includes a network status detector unit and a network...
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7408882 |
Automatic discovery of network node addresses
The present invention provides a system and method for automatic discovery of network addresses. Briefly described, in architecture, one embodiment of the apparatus, among others, comprises: an...
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7408934 |
Broadcast between subnetworks connected via router
The present invention allows the contents of network-wide broadcast in a first subnetwork to be passed to a second subnetwork even if a router is set to prevent the network-wide broadcast in the...
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7408879 |
Router, terminal apparatus, communication system and routing method
A router includes a clock configured to be synchronous to a transmission terminal that transmits a data packet; a comparator configured to compare a delay time of the data packet with an acceptable...
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7408936 |
Scalable VLAN grouping in a provider Metro Ethernet
A method of routing packets in network system where the network system comprises a plurality of edge nodes and a plurality of core nodes. Selected core nodes are coupled to communicate with...
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7408956 |
Communication apparatus and communication method
A data communication frame is formed by a preamble portion (PREAMBLE) for demodulation and synchronization, a frame information portion (FC) containing a data type of the frame, a frame length...
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7408920 |
Active user registry
An Active User Registry system includes a database which is integrated with the POTS network and a packet network to exploit the outstanding strengths of both of its constituents. The Active User...
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7408932 |
Method and apparatus for two-stage packet classification using most specific filter matching and transport level sharing
A method and apparatus for two-stage packet classification, the two-stage packet classification scheme including a first stage and a second stage. In the first classification stage, a packet is...
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7408930 |
Address learning to enable high speed routing table lookups
A switch includes multiple ports, a switching fabric, and a routing table module. The routing table module includes a multi-bank memory structure for maintaining routing information. The routing...
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7408906 |
Mobile data communications apparatus, methods and computer program products implementing cellular wireless data communications via a wireless local area network
A mobile data communications system includes a cellular wireless data communications network, such as a GPRS or CDPD network, including a plurality of base stations that communicate with terminals...
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7408933 |
Distributed router with ping-pong preventing function and ping-pong preventing method using the same
A distributed router able to reduce occurrence of ping-pong of data and information packets within the architecture of the distributed router constructed with a main processor, a plurality of line...
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7408935 |
Packet forwarding apparatus with a flow detection table
A packet forwarding apparatus provided with a plurality of line interface units, comprises a routing processing unit for referring to a routing table, based on header information of received packet...
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7406054 |
Routing method for wireless networks
A routing method is used to establish a data transfer path between a source node and a destination node in wireless networks having a tree structure. If a relay node relaying a data transfer...
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7406078 |
Method and wireless network system for providing QoS on wireless network communicating via point-to-point network
A method and wireless communication system for providing QoS in a wireless network communicating through a point-to-point network are provided. The method includes: (a) at least one of intermediate...
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7406038 |
System and method for expansion of computer network switching system without disruption thereof
A switch fabric system comprises a first chassis for receiving a plurality of line cards each having a plurality of ports and at least two switch fabric cards wherein each line card comprises a...
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7406079 |
Repeater and an inter-network repeating method
The present invention provides a repeater which automatically closes a dynamically opened port in accordance with prior setting, the repeater including: a port mapping table where a global IP...
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7406080 |
Method and structure for enqueuing data packets for processing
A method and structure is provided for buffering data packets having a header and a remainder in a network processor system. The network processor system has a processor on a chip and at least one...
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7406076 |
Transmission system and method thereof
The frame disassembly unit receives the MAC frame to insert/identify a destination address and tag. The information retrieval unit retrieves the VLAN information DB to discover the tag and port...
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7406536 |
Dynamic power line access connection
A method of connecting a power line modem to an external network. The method includes receiving, by the power line modem, a plurality of packets directly transmitted from a plurality of neighboring...
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7406526 |
Extended internet protocol network address translation system
A method for transferring data, by establishing network links between a private and a public network. Each link is associated with a respective unique public-network-address. Each session of one or...
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7406081 |
Network device for remote setting operations
In a network device for setting a configuration definition remotely, a storage generates, upon changing a first (current) IP address to a second IP address, a virtual address which holds the second...
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7406035 |
Method and apparatus for providing redundant protocol processes in a network element
A method and apparatus for facilitating an activity switch between a plurality of redundant routing modules in a network element is disclosed. Lower layer protocol packets, each encapsulating a...
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7406087 |
Systems and methods for accelerating TCP/IP data stream processing
A network device includes an interface ( 105 ), a TCP/IP protocol fast processing path ( 115 ), and a TCP/IP protocol slow processing path ( 110 ). The interface ( 105 ) receives a packet and...
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7406091 |
Distribution of communications between paths
Distributing communications between paths, comprises providing a plurality of destinations, providing a plurality of communications paths such that each of the plurality of destinations can be...
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7403999 |
Classification support system and method for fragmented IP packets
A wire-speed forwarding platform and method for supporting multifield classification of a packet fragmented into a plurality of fragments in the wire-speed forwarding platform, comprising:...
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7403494 |
Method for generating nodes in multiway search tree and search method using the same
A node structure of a multiway search tree can accelerates a search speed by making a key, a key pointer and a node pointer coincident with the size of a cache line through the use of only one...
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7403483 |
Optimum route calculation method and storage medium which stores optimum route calculation program
In an optimum route calculation method of calculating an optimum route in a network which has a plurality of nodes and a plurality of transmission paths, and in which a cost is defined for each...
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7404210 |
Method and apparatus for defending against distributed denial of service attacks on TCP servers by TCP stateless hogs
A Distributed Denial-of-Service (DDoS) attack by a TCP stateless hog is defeated with use of an enhancement to the keep-alive mechanism provided by RFC 1122. A TCP server receives a new TCP...
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7403524 |
Method and apparatus for parallel packet switching
Available time slot(s) in a packet switch are identified in order to route a packet from an input port to a designated output port. The status of each time slot is logically combined with regard to...
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7403525 |
Efficient routing of packet data in a scalable processing resource
According to the present invention, the multiple processor device determines routing for a plurality of data segments. In determining the routing, the multiple processor device first receives the...
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7403474 |
Redundant router set up
Methods, systems, and devices are provided for redundant router set up. One embodiment of a network device having router functionality includes a processor, memory in communication with the...
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