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US20140119239 SYSTEMS AND METHODS FOR CONSTRAINED FORWARDING BASED PACKET NETWORK CONNECTIVITY  
An Ethernet Tree (E-Tree) service is described instantiated on an Ethernet switch and in an Ethernet network. The E-Tree service is implemented using Private Forwarding Groups (PFGs), asymmetric...
US20100309912 FORWARDING FRAMES IN A COMPUTER NETWORK USING SHORTEST PATH BRIDGING  
Methods, apparatus, and products are disclosed for forwarding frames in a computer network using shortest path bridging (‘SPB’). The network includes multiple bridges, and each edge bridge is...
US20130336322 Anycast-Based Internet Protocol Redirection To Alleviate Partial Routing Tables  
Systems and methods are described that instruct routers having constrained hardware/memory to redirect all outbound traffic to a helper router. The helper router contains a full routing table that...
US20110064083 Anycast-Based Internet Protocol Redirection To Alleviate Partial Routing Tables  
Systems and methods are described that instruct routers having constrained hardware/memory to redirect all outbound traffic to a helper router. The helper router contains a full routing table that...
US20150117450 METHOD AND COMPUTING DEVICE FOR PACKET CLASSIFICATION  
The invention relates to a method for packet classification and a computing device for executing the method. The method comprises the steps of analysing packet classification rules to obtain a...
US20130003737 E-TREE USING TWO PSEUDOWIRES BETWEEN EDGE ROUTERS WITH ENHANCED LEARNING METHODS AND SYSTEMS  
An e-tree service that includes establishing two pseudowires (PW) between edge network elements with enhanced address learning is described. In one embodiment, a root PW and a leaf PW are used for...
US20140192814 Method And Apparatus For Sharing TCAP Traffic Load  
The present invention relates to a point code emulation apparatus and method for dividing a Common Channel Signaling System No. 7 (or SS7) signaling network into two or more networks. The point...
US20150249590 DEADLOCK-FREE ROUTING IN FAT TREE NETWORKS  
Methods and apparatus are provided for routing data packets between source and destination switches in a fat tree network. For each packet, a route is selected having three or less routing phases...
US20120236865 CONTENTION FREE PIPELINED BROADCASTING WITHIN A CONSTANT BISECTION BANDWIDTH NETWORK TOPOLOGY  
In an interconnection network, multiple nodes are connected to one of a first layer of switches. The first layer of switches is connected to one another through a second layer of switches. Each of...
US20130272303 PACKET SWITCHING WITHOUT LOOK-UP TABLE FOR ETHERNET SWITCHES  
In one embodiment, a method for packet switching includes receiving a packet, wherein the packet comprises a header and a payload; determining, without using a look-up table, a destination port...
US20150200853 CONTROLLER-LESS PEER-TO-PEER DISTRIBUTED SWITCH  
In one embodiment, a device (e.g., a sync daemon) connects to peer nodes in a communication network. Each of the peer nodes has a switch that supports a flow table and an action table. The device...
US20100284407 NEXTHOP TO A FORWARDING TABLE  
A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The...
US20150092778 Tracking Prefixes of Values Associated with Different Rules to Generate Flows  
Some embodiments provide a method for a forwarding element that forwards packets. The method receives a packet. The method consults a tree structure to generate a wildcard mask. The consulting...
US20140334493 MESSAGE FORWARDING METHOD, SYSTEM, AND RELAY AGENT DEVICE  
The present disclosure provides a message forwarding method and system, and a relay agent device. The forwarding method includes: receiving a first DHCPv6 message from a DHCPv6 client through a...
US20140105214 MESSAGE FORWARDING METHOD, SYSTEM, AND RELAY AGENT DEVICE  
The present disclosure provides a message forwarding method and system, and a relay agent device. The forwarding method includes: receiving a first DHCPv6 message from a DHCPv6 client through a...
US20130329736 CONTENTION FREE PIPELINED BROADCASTING WITHIN A CONSTANT BISECTION BANDWIDTH NETWORK TOPOLOGY  
In an interconnection network, multiple nodes are connected to one of a first layer of switches. The first layer of switches is connected to one another through a second layer of switches. Each of...
US20140044132 TECHNIQUE FOR ETHERNET ACCESS TO PACKET-BASED SERVICES  
An Ethernet Metropolitan Area Network provides connectivity to one or more customer premises to packet-bases services, such as ATM, Frame Relay, or IP while advantageously providing a mechanism...
US20140314086 QUERYING A TRAFFIC FORWARDING TABLE  
The invention relates to a computer implemented method of querying a traffic forwarding table at a device in a computer network, the traffic forwarding table having entries which are accessible...
US20150071285 DISTRIBUTED SERVICE CHAINING IN A NETWORK ENVIRONMENT  
An example method for distributed service chaining in a network environment is provided and includes receiving a packet belonging to a service chain in a distributed virtual switch (DVS) network...
US20110032939 NETWORK SYSTEM, PACKET FORWARDING APPARATUS, AND METHOD OF FORWARDING PACKETS  
A network system includes: a first network; an authentication server; a second network; a network; and a packet forwarding apparatus, wherein the packet forwarding apparatus includes: a forwarding...
US20110044342 METHOD FOR POPULATING A FORWARDING INFORMATION BASE OF A ROUTER AND ROUTER  
A method for populating a forwarding information base of a router of an autonomous system (AS) in the Internet's Default Free Zone (DFZ), wherein the forwarding information base contains a...
US20140140347 TIE-BREAKING IN SHORTEST PATH DETERMINATION  
A consistent tie-breaking decision between equal-cost shortest (lowest cost) paths is achieved by comparing an ordered set of node identifiers for each of a plurality of end-to-end paths....
US20120027017 MULTI-DESTINATION FORWARDING IN NETWORK CLOUDS WHICH INCLUDE EMULATED SWITCHES  
Techniques are described which facilitate multi-destination forwarding in a Layer 2 Multipath (L2MP) network which includes an emulated switch. The emulated switch may correspond to two or more...
US20130215892 NETWORK PROVIDER BRIDGE MMRP REGISTRATION SNOOPING  
A provider edge bridge in a service provider network receives multiple media access control (MAC) Registration Protocol (MMRP) registration messages from customer networks via tunnels. The...
US20130343386 FIRST HOP LOAD BALANCING  
In an implementation, a packet is received from a network device. A group identifier is retrieved from the received packet. A plurality of layer-2 switch identifiers that are associated with the...
US20130343385 HYPERVISOR INDEPENDENT NETWORK VIRTUALIZATION  
In one embodiment, a first physical overlay switch located at an edge of an IP network includes logic adapted for: receiving a packet having a virtual local area network (VLAN) identifier (ID)...
US20150117461 Packet Classification  
A packet classification system, methods, and corresponding apparatus are provided for enabling packet classification. A processor of a security appliance coupled to a network uses a classifier...
US20130039366 Packet Classification  
A packet classification system, methods, and corresponding apparatus are provided for enabling packet classification. A processor of a security appliance coupled to a network uses a classifier...
US20110317698 Multicast-Enabled Address Resolution Protocol (ME-ARP)  
A Multicast-Enabled Address Resolution Protocol (ME-ARP) is disclosed. This ME-ARP allows the building of independent IP based Virtual Private LAN segments (VPLS) over a multicast enabled IP...
US20130010797 CUSTOM ROUTING DECISIONS  
With the advent of virtualization technologies, networks and routing for those networks can now be simulated using commodity hardware rather than actual routers. For example, virtualization...
US20120051362 METRO ETHERNET SERVICE ENHANCEMENTS  
Numerous enhancements to metro Ethernet network (MEN) services include an enhancement of the overall MEN Quality of Service (QoS) architecture, an enhancement to classification at the provider...
US20120250691 TRANSMITTING A PACKET FROM A DISTRIBUTED TRUNK SWITCH  
A method of transmitting a packet from a distributed trunk switch and a computer-readable medium storing instructions therefor is described. The method comprises populating an address table of the...
US20140269725 SERVICE TO NODE RESOLUTION USING INTERIOR GATEWAY PROTOCOLS  
An apparatus and method for resolving services to nodal segments. The method involves receiving an advertisement. The advertisement includes a service address associated with a service. The method...
US20150043576 SOFTWARE DEFINED NETWORK (SDN) SWITCH CLUSTERS HAVING LAYER-3 DISTRIBUTED ROUTER FUNCTIONALITY  
According to one embodiment, Layer-3 (L3) distributed router functionality is provided to a switch cluster by receiving an address resolution protocol (ARP) request packet from a first host at an...
US20130208722 PACKET ROUTING WITH ANALYSIS ASSIST FOR EMBEDDED APPLICATIONS SHARING A SINGLE NETWORK INTERFACE OVER MULTIPLE VIRTUAL NETWORKS  
Techniques are provided for packet routing in a distributed network switch. The distributed network switch includes multiple switch modules operatively connected to one another, and each switch...
US20130208721 PACKET ROUTING WITH ANALYSIS ASSIST FOR EMBEDDED APPLICATIONS SHARING A SINGLE NETWORK INTERFACE OVER MULTIPLE VIRTUAL NETWORKS  
Techniques are provided for packet routing in a distributed network switch. The distributed network switch includes multiple switch modules operatively connected to one another, and each switch...
US20110007743 FILTER-BASED FORWARDING IN A NETWORK  
A router receives a packet at an ingress interface. The router classifies the received packet based on at least a first field value contained in the header of the packet. According to the...
US20140071989 MAPPING PBT AND PBB-TE TRAFFIC TO VPLS AND OTHER SERVICES  
Transferring data in a network is disclosed. Transferring includes receiving a Provider Backbone Transport (PBT) frame, identifying a plurality of location specific identifiers in the PBT frame,...
US20140056302 HYPERVISOR INDEPENDENT NETWORK VIRTUALIZATION  
A method includes receiving a packet having a VLAN ID at a first physical overlay switch located at an edge of an IP network, encapsulating the packet with an overlay header, and tunneling the...
US20140023079 METHOD AND APPARATUS FOR CONFIGURING ADDRESS RESOLUTION PROTOCOL ARP ENTRY  
Embodiments of the present invention disclose a method and an apparatus for configuring an ARP entry. The method includes: acquiring, by a first router, when determining that a second router is a...
US20120063461 Method Of Routing A Packet  
The invention concerns a method of routing a packet in a packet switching network, and a corresponding router (50). A new or an obsolete entry in a routing table is detected. A timer is started. A...
US20130188642 System and Method for Deterministic I/O with Ethernet Based Industrial Networks  
A networking system is discussed. The system may be used for industrial networks, where deterministic behavior is often valued. Bounded message travel times may be achieved for a first set of...
US20150016459 METHOD AND APPARATUS FOR FORWARDING PACKET IN IDENTIFIER/LOCATOR SEPARATION ENVIRONMENT  
A method of a node forwarding a packet in an identifier/locator separation environment is provided. The packet forwarding method includes providing a routing table for storing information on...
US20130230047 METHODS OF OPERATING FORWARDING ELEMENTS INCLUDING SHADOW TABLES AND RELATED FORWARDING ELEMENTS  
A method may be provided to operate a forwarding element in a forwarding plane of a network including the forwarding plane and a control plane. The method may include receiving a packet through an...
US20130089096 METHOD AND SYSTEM FOR MANAGING PROTOCOL CONNECTION IN PBB NETWORK AND BEB NODE  
A method and system for managing protocol connection in a PBB network and a BEB node. A first BEB node in the PBB network receives a Pseudo Wire (PW) connection requesting message sent by a second...
US20110116506 METHODS AND SYSTEMS FOR REROUTE AND GENERATION OF BACKWARD ROUTING INFORMATION  
Methods and systems for reroute and generation of backward routing information are provided. When an originator node wants to transmit a packet to a destination node and cannot transmit the packet...
US20100309917 ENHANCED PACKET CLASSIFICATION  
A method for classifying a data packet containing a header is provided. The method may comprise parsing the header of a data packet into header elements. Rules in secondary lookup tables generated...
US20150003456 SYSTEM AND METHOD FOR TRANSFERRING MESSAGE IN ETHERNET BASED VEHICLE NETWORK  
An Ethernet based vehicle network message transferring system is provided that includes a gateway switch that connects the Ethernet to vehicle networks having different protocols and an Ethernet...
US20140071991 METHOD AND SYSTEM FOR REDIRECTING NETWORKED TRAFFIC  
A method of redirecting network traffic from a first, uncontrolled network to a second, controlled network by rewriting the Type of Service field in the header information of an Internet Protocol...
US20140226669 TRIPLE-TIER ANYCAST ADDRESSING  
In one embodiment, a solution is provided wherein redundant routers are treated as a single emulated switch. When a packet is received at a layer 2 edge switch from a host, the layer 2 edge switch...