294 results about "Forwarder" patented technology

The invention relates to an architecture that facilitates load balancing among a plurality of hosts and preserve session affinity to a given host. An incoming stream of data packets that include packet sessions is input to one or more forwarding mechanisms for forwarding to one or more hosts. The forwarders generate a routing function that takes into consideration host availability, and distributes session packets according to the routing function. A session is distributed to the same host to preserve session affinity. When host availability changes, a new routing function is generated, such that any new session is routed according to the new routing function and existing sessions are routed according to the old routing function. When the old routing function becomes irrelevant, it is phased out. An optimization utilizes a maximally backward compatible hash function to minimize the differences between the old and new routing functions.

Systems and methods for interconnecting heterogeneous layer 2 virtual private network applications. To facilitate such interconnections, a common addressing scheme for forwarders is provided. All current pseudowire signaling protocols can incorporate this addressing scheme, and therefore establish connectivity among forwarders of different applications. Auto-discovery of remote forwarders is also facilitated by use of a common address family identifier (and subsequent address family identifier) for BGP.

An apparatus and method for forwarding a web address to another web address is presented. A web forwarder receives a request destined to a first web address including at least a domain name. The web forwarder then determines a forwarding uniform resource locator (URL) that corresponds to the domain name and redirects the request to a second web address that corresponds to the forwarding URL.

A communication system that includes a supervisory node (e.g., a headend) and one or more remote nodes (e.g., cable modems). Packets are transmitted between the supervisory node and the one or more remote nodes via RF channels. A plurality of the RF channels are bonded, such that packets may be transmitted via any one or more of the RF channels that are bonded. Bonding may include higher-layer bonding and/or lower-layer bonding. In higher-layer bonding, the communication system further includes a forwarder and a plurality of edge modulators. Each edge modulator is connected to a different RF channel or group of RF channels. The forwarder determines to which edge modulator one or more packets or flows are to be transmitted. In lower-layer bonding, a packet is split into pieces. The pieces are assigned to respective RF channels that are associated with an edge modulator for transmission to a remote node.

Techniques are provided for performing discovery in a Fibre Channel over Ethernet (FCoE) network. An FCoE Node (ENode) discovers the FCoE Forwarders (FCFs) connected to its network segment by transmitting a solicitation message to the multicast MAC address “All-FCF-MACs”. All FCFs receive packets with this multicast MAC address including the solicitation message that announces the presence of the ENode. Each FCF replies with a unicast advertisement message that provides the ENode with a MAC address of the responding FCF. The ENode builds a list of the FCFs available on its network segment and may then establish a virtual link with one or more of the FCFs through a Fabric Login (FLOGI) exchange.

An incoming UDP packet is allowed to traverse a network address translation (NAT) device or a firewall, wherein first, a TCP connection is opened and a Raw-IP interface is utilized to build the UDP-like packet using the parameters of the TCP connection (e.g., session number, port, etc.) Furthermore, when one of two communicating machines is behind a firewall, a connection is established between each of the machines and a proxy server located in a public network. The proxy then communicates the port and address information while using the proxy server's port and address information as the source port and address, or provides both with an address of an appropriate (potentially based on network proximity) packet forwarder.

Techniques are provided for performing discovery in a Fibre Channel over Ethernet (FCoE) network. An FCF discovers other FCoE Forwarders (FCFs) connected to its network segment by transmitting a solicitation message to the multicast MAC address “All-FCF-MACs”. All FCFs receive packets with this multicast MAC address including the solicitation message that announces the presence of the FCF. Each FCF replies with a unicast advertisement message that provides the new FCF with a MAC address of the responding FCF. The FCF builds a list of the FCFs available on its network segment and may then establish a virtual link with one or more of the FCFs through an exchange link parameter (ELP) exchange.

A method implemented by a network controller, comprising receiving an address filter from a service chain orchestrator, wherein the address filter comprises a plurality of service instance (SI) addresses associated with a plurality of SIs in a network, obtaining network topology information from a plurality of service function (SF) forwarders controlled by the network controller, wherein the network topology information indicates a plurality of network devices communicatively coupled to the plurality of controlled SF forwarders, and wherein at least some of the network devices are SI hosting devices, and generating a service chain topology map by building mappings between at least some of the plurality of controlled SF forwarders, the SI hosting devices, and the plurality of SIs according to the network topology information and the address filter.

An apparatus for insertion of graphical items into a text message sent from a first telephony user to a second telephony user through a telephony network, including: a receiver, deployed in the network, configured to receive the text message from the first telephony user, a graphical enhancer, associated with the receiver, configured to graphically enhance text of the text message by replacing a predefined character string in the text with a respective predefined graphical item from a graphical item repository, and a forwarder, associated with the graphical enhancer, configured to forward the graphically enhanced text in a message to the second telephony user.

The invention discloses a joint video monitoring method and a system thereof, belonging to the video monitoring field. The method comprises the following steps: a registration management server receives and stores position information of cameras sent by a monitoring front end, and sends the position information of the cameras to a monitoring terminal; the registration management server receives position information of a monitoring target sent by a navigation forwarder carried on the monitoring target and sends the position information of the monitoring target to the monitoring terminal; and the monitoring terminal selects proper cameras for monitoring according to the position information of the monitoring target and the position information of the cameras, and displays the monitoring video. The system comprises the registration management server, the monitoring terminal, the monitoring front end and the navigation forwarder carried on the monitoring target. The invention can easily control lenses of the cameras, automatically switch scenes during the whole monitoring process at high speed and low cost, and unite a plurality of cameras to jointly monitor the monitoring target.

In one embodiment, the present invention is a method and an apparatus for bandwidth efficient distribution of content over a computer network. In one embodiment, a server cooperates with clients to reduce the usage of server bandwidth, thereby reducing bandwidth-associated distribution costs. The server controls the way that content is distributed within the system, and the clients/receivers may act as intermediate forwarders of data packets. In one embodiment, this is accomplished by sending data items to a first group of receivers on a packet-by-packet basis using unicast communication. The first group of receivers then sends the packets on to a second set of receivers, and the process continues until the packet is forwarded to all intended receivers.

A system and method for selecting freight forwarding companies is provided wherein bids for shipping lanes and the like are received well in advance of a freight move. Bids are submitted on shipping lanes and other move associated transactions by pre-approved freight forwarding companies. This information is stored in a database. Selection of the freight forwarding company or companies occurs in connection with evaluating the bid information submitted and historical data stored on the database.

The invention discloses a message transmitting method. The message transmitting method comprises the following steps: connecting an SFC (Service Function Chain) agent node in Overlay service chain networking with an SF (Service Function) node through a DS-Lite tunnel; when the SFC agent node receives a to-be-processed message transmitted by an SFF (Service Function Forwarder) node, generating a B4 side address according to VNI (VXLAN Identification) information and service chain header information, and establishing the DS-Lite tunnel between the SFC agent node and the SF node; then carrying out DS-Lite tunnel packaging processing on a first original message to generate a packaged message and sending the packaged message to the SF node through the DS-Lite tunnel, thus generating the packaged message capable of being normally identified by the SF node. The message transmitting method simply and quickly realizes effective support of the SF node in a service chain for tenant address overlapping.

The invention provides a logistics integrated transportation method and a logistics integrated transportation system based on social idle resources. According to the logistics integrated transportation method, the social idle resources are utilized to serve as a carrier providing good transportation service on the trip, logistics companies serve as a shipper or a carrier in a compatible manner, the logistics integrated transportation method comprises a registration process, a demand matching process and a transportation monitoring process, the carrier conducts a reception confirming process and a freight reception payment process when the carrier delivers the good entrusted by the shipper to a destination after the trip, if the carrier cannot deliver the whole or part of the good entrusted by the shipper to the destination directly on the trip, the carrier publishes a demand as a forwarder, and conducts a forward matching process and a freight stage payment process. By applying the logistics integrated transportation method and the logistics integrated transportation system, a wide range of resources can be integrated to form a convenient and fast transportation chain, so that the energy is saved, the good flow capacity is increased, and the speed is accelerated.

In order for a source node including a vehicle multihop protocol unicast apparatus to route data to a destination node, the source node broadcasts a location request message to neighbor node and receives a location response message from the neighbor nodes in response to the location request message. Therefore, the source node routs unicast data on the basis of the location information of the destination node included in the location response message. At this time, the source node uses a location based forwarder selecting algorithm in order to select a forwarder.

The invention discloses a mimic SDN controller construction method. The method comprises a control plane, a dispatching plane and a data plane. The control plane is used for realizing tasks of network control and management and providing multiple heterogeneous redundant controller executing parts. The data plane is used for finishing a data forwarding function in a network and comprises hardware facilities such as a switch and a router. The control plane communicates with the data plane through the dispatching plane. The dispatching plane comprises a forwarder, a sensor, a decider and a dispatcher. The mimic SDN controller construction method comprises following specific steps of step 1, collecting network state information and forwarding the information to the controller executives; step 2, carrying out sensing detection on network operation states in real time; and step 3, dispatching the controllers of the control plane dynamically, and carrying out voting output on the sent information by utilizing a majority judgment mechanism. The device has a management mechanism capable of sensing and dynamically dispatching the controllers; abnormal network operation resulting from a failure of a single controller is avoided; exterior attacks are difficult to capture the executing parts responsible for network management; and moreover, the security of the SDN is further improved through adoption of the majority judgment decision-making mechanism.

In embodiments of the present invention, multicast traffic is simultaneously routed via all switches participating in the trunk (can be referred to as partner switches). A respective partner switch synchronizes the local multicast state information with all other partner switches. For a respective multicast group, a plurality of partner switches can be the part of the corresponding multicast distribution tree and obtain multicast traffic from uplink sources. For the multicast group, only one partner switch is elected as the primary forwarder which forwards the multicast traffic via the trunk. Another partner switch can become the primary forwarder for the multicast traffic of another multicast group and provide load sharing of multicast traffic between partner switches. Furthermore, because the partner switches have the multicast traffic and state readily available, in the event of a switch or link failure to the primary forwarder, another partner switch can readily become the primary forwarder.

A network device, is to be deployed in a network between a first network domain and a second network domain, and is to be configured for fast reroute. The network device includes a first traffic forwarder control module, corresponding to the first network domain, which is to determine a primary next hop in the first network domain. The control plane includes a second traffic forwarder control module, corresponding to the second network domain, which is to determine a backup next hop in the second network domain. The backup next hop is to be used as a fast reroute for the primary next hop in response to a failure associated with the primary next hop. The control plane includes a controller module, in communication with the first and second traffic forwarder control modules, which is to configure a forwarding structure of the forwarding plane with the primary and backup next hops.

In response to a request for acquisition of an IP address from a user terminal, a DHCP server 171B in a subscriber line accommodation device 102 allocates an IP address, registers a set of the allocated IP address, an MAC address of the user terminal, and a line number thereof in a DHCP management table 201, and sets it in an input filter section 184 as a packet passing condition. Among packets sent from user terminals, the input filter section 184 sends only those packets satisfying registered conditions toward a bridge forwarder 135, while discards those packets not satisfying the conditions. Even when access is attempted by illegally using an IP address, a packet concerned is discarded unless a line number or an MAC address agrees.

Systems and methods to forward data frames are described. A particular method may include associating a fiber channel forwarder with a bridge element. The fiber channel forwarder may be one of a plurality of fiber channel forwarders coupled to the bridge element. A data frame received at the bridge element may be forwarded to the fiber channel forwarder.