Abstract: A method of communicating between a base band unit and a plurality of remote radio heads includes the steps of receiving a first signal through an antenna in a first remote radio head, transmitting the first signal to a second remote radio head through a digital radio interface, receiving a second signal through an antenna in the second remote radio head, compensating for a delay accrued in the first signal, adding the first signal and the second signal to obtain a resulting signal, and transmitting the resulting signal to a base band unit through a digital radio interface.

Abstract: In one embodiment, a method for telecommunications includes steps of receiving a first packet through a first port, and determining whether the first packet arrived over a protected path. If the first packet arrived over a protected path, the method also includes the steps of hashing a source address of the first packet, adding a first entry into a forwarding table, and adding a second entry into the forwarding table. The protected path is coupled to at least the first port and a second port. The first entry includes the result of hashing the packet, and an identification of the first port. The second entry includes the result of hashing the packet, and an identification of the second port.

Abstract: A system for connecting optical modules in an optical network may comprise a printed circuit board, two cages, and two connectors. The printed circuit board may house electronic circuitry and a plurality of electronic components. The printed circuit board may have a component side and a solder side. The two cages may be mounted back-to-back on opposite sides of the printed circuit board, each cage having a connector end and an I/O end. The two connectors may be mounted back-to-back on opposite sides of the printed circuit board. Each of the two cages may be configured to guide an optical module into the respective connector. Each of the two cages may be mounted at an angle from the respective surface of the printed circuit board such that the respective I/O ends of the two cages are farther apart than the respective connector ends of the two cages.

Abstract: A filler panel for blocking an unused portion of a communications system. That filler panel may include an electromagnetic shielding base and a base cover removably coupled to the electromagnetic shielding base. The filler panel may also include an air dam composed substantially of low-cost, nonconductive material coupled to either the electromagnetic shielding base or to the base cover through the electromagnetic shielding base.

Abstract: According to one embodiment, a network element may include one or more network interfaces and a master control unit communicatively coupled to the one or more network interfaces. The one or more network interfaces may include in the aggregate, a plurality of physical ports configured as member ports of a link aggregation group. The master control unit may be configured to maintain a routing table, such routing table including information regarding which of the plurality of physical ports of the link aggregation group is designated as an active port for management traffic egressing via the link aggregation group, wherein the active port carries a communication channel for the management traffic segregated from carrier traffic, and communicate the routing table to each of the one or more network interfaces.

Abstract: A filler panel for an electronics shelf is provided. The electronics shelf includes a number of slots each configured to receive an electronic device. The filler panel includes a non-conductive main body that includes a front wall, a side wall, and a back wall. The front wall and back wall are configured to fill a width of a slot of the electronics shelf and the side wall is configured to extend into a depth of the slot. The filler panel also includes an electromagnetic shielding portion made of a conductive material and coupled to the main body. Furthermore, the main body includes one or more cable clips each configured to retain one or more cables within the main body.

Abstract: A filler panel for an electronics shelf is provided. The electronics shelf includes a plurality of slots each configured to receive an electronic device. The filler panel includes a non-conductive main body that includes a front wall, a back wall, a top wall, a bottom wall and a single side wall. The front wall, back wall, top wall and bottom wall are configured to fill a width of a slot of the electronics shelf. The side wall is configured to extend into a depth of the slot, The filler panel also includes an electromagnetic shielding portion comprising a conductive material that is coupled to the main body. The main body further includes one or more vents positioned in each of the top wall and the bottom wall, the vents configured to allow air flow though the main body.

Abstract: According to one embodiment, a method for processing heartbeat messages includes processing heartbeat messages received at a first network interface integral to a first network element from a second network element to determine a first status parameter associated with the second network element. The method may also include processing heartbeat messages received at a second network interface integral to the first network element from the second network element to determine a second status parameter associated with the second network element. The method may further include determining a status of the second network element based on the first status parameter and the second status parameter.

Abstract: A method and system for reporting defects within a network are disclosed. In accordance with an embodiment of the present invention, a method for reporting defects within a network comprises generating a summary alarm by a network element based on defects detected within a network. The method further comprises receiving at the network element a first request for the detected defects within the network from a network management system in response to generation of the summary alarm. The method further comprises reporting the detected defects by the network element in response to the first request from the network management system.

Abstract: A method and system for masking defects within a network are disclosed. In accordance with an embodiment of the present invention, a method for masking defects within a network comprises detecting by a service entity defects within a network. The method further comprises determining a number of detected defects associated with a network component included in the network. The method further comprises generating by the network component a summary alarm if the number of detected defects within the network is greater than a first threshold.

Abstract: A method for determining the speed of a wireless device includes the steps of receiving channel quality indicator data, determining the fast fading characteristics of the received channel quality indicator data, comparing the fast fading characteristics of the received channel quality indicator data against benchmark channel quality indicator data, and determining the speed of the wireless device based on the comparison. The channel quality indicator data is indicative of the signal quality at a wireless device. The benchmark data includes fast fading characteristics.

Abstract: Determining availability of an end-to-end physical path associated with reserved resources of a tunnel may include determining, for one or more nodes, a resource status for one or more resources integral to each node. Resource status for the integral resources of each node may be recorded in a message. Each node may communicate its associated message to one or more other nodes. At least one particular node of the one or more nodes may receive the messages communicated from the one or more nodes. The at least one particular node may store resource statuses for each of the one or more nodes. Based on an analysis of resource statuses, the at least one particular node may determine an availability of an end-to-end path of reserved resources of a tunnel including one or more of the nodes based on an analysis of resource statuses.

Abstract: According to particular embodiments, determining paths in a network with asymmetric switches includes receiving a graph representing the network. Each asymmetric switch has defined degree connectivity between one or more pairs of degrees of the asymmetric switch. The graph is transformed to yield a transformed graph that accounts for the asymmetric switches. A routing process is applied to the transformed graph to yield one or more paths through the network.

Abstract: A communication network access device is adapted for duplex communication and provides transmit and receive signal paths. A controllable socket is coupled to the transmit and receive signal paths and linked to a control interface for activating/deactivating the control interface. A pluggable module is coupled to the transmit and receive signal paths via the controllable socket in an activated status and to a transmission path carrying uni-directional signals. The module includes a first optical device and a splitter in the transmission path and is coupled to a second optical device via the splitter. The second optical device responds to a portion of uni-directional signals provided by the splitter for placing the communication access device in a link up condition for uni-directional signals provided by the first optical device to the transmission path serving an optical local area network.

Abstract: A method and system for determining a path between nodes in a network are disclosed. In accordance with an embodiment of the present disclosure, a system for determining a path between nodes in a network comprises a destination node and a link aggregation group (LAG) that includes a first link and a second link. The system further comprises a source node communicatively coupled to the destination node by the LAG where the source node, the LAG and the destination node form a path. The source node is operable to determine a link availability status for each of the first and second links using a layer-2 protection scheme. The source node is further operable to monitor the path for connectivity based on the link availability status using a layer-3 protection scheme.

Abstract: A system for managing networks includes a gateway capable of receiving a first TARP request from a requesting node and generating a second TARP request based on the first TARP request. The second TARP request includes an NSAP address of the gateway. The gateway is further capable of transmitting the second TARP request to a destination node. The gateway is also capable of receiving a first TARP response from the destination node and generating a second TARP response based on the first TARP response. The second TARP response includes the NSAP address of the gateway. The gateway is further capable of transmitting the second TARP response to the requesting node.

Abstract: An electrical system includes a backplane, a first electrical component, and a second electrical component. The backplane includes a first column of connectors, a second column of connectors, a third column of connectors, and a fourth column of connectors. The backplane also includes a first plurality of conductive paths that couple the connectors in the first column to an alternating sequence of connectors in the third column and the fourth column. Additionally, the backplane includes a second plurality of conductive paths that couple the connectors in the second column to an alternating sequence of connectors in the fourth column and the third column. The first electrical component couples to the backplane through the first column and the second column. The second electrical component couples to the backplane through the third column and the fourth column.

Abstract: According to one embodiment, an apparatus comprises one or more hub interfaces and one or more processors. A hub interface is coupled to an access network element of a ring network comprising a number of access network elements. The ring network comprises a pair of rings: a first ring traveling in a first direction and a second ring traveling in a second direction. The processors perform the following for each access network element: facilitate establishing a pair of point-to-point logical connections to couple a access network element to a hub interface at a corresponding dedicated bandwidth, a first connection traveling along the first ring, a second connection traveling along the second ring; facilitate establishing a pair of tunnels on the pair of point-to-point connections; and utilize the tunnels to protect the ring network.

Abstract: A method for traffic shaping includes receiving traffic from one or more clients at one or more ingress ports of forwarding engine of a network node. The method also includes transmitting at least a portion of the traffic through the forwarding engine to one or more first egress ports of the forwarding engine and shaping the traffic transmitted to the egress ports. Furthermore, the method includes looping the shaped traffic internally within the network node back to one or more ingress ports of the forwarding engine. The method further includes transmitting the looped traffic through the forwarding engine to one or more second egress ports (the second egress ports different than the first egress ports) and outputting the shaped traffic from the network node.

Abstract: A system and method for shielding electromagnetic radiation includes an apparatus for shielding electromagnetic radiation. The apparatus includes a conductive surface comprised of electrically-conductive plastic. The apparatus further includes a flexible element comprised of electrically-conductive plastic extending from the conductive surface. The element is operable to contact an adjacent surface abutting the flexible element and form a conductive connection with the adjacent surface. When assembled with other components in a housing, the electrically-conductive surface and the flexible element may form a portion of a Faraday shield.