179 results about "Auto negotiation" patented technology

A resource negotiation service is provided to enable business logic decisions to be made when obtaining switched underlay network resources, to interface business logic with network conditions and schedules. The resource negotiation service may be implemented as a web service or other network service to enable business logic to be used in the selection of available network resources. This may allow policy to be used on both the subscriber side and the network provider side to optimize network resource allocations for a proposed transfer. The policy may include subscriber policy, network policy, and other factors such as current and expected network conditions. The resource negotiation service may include an interface to enable existing subscribers and new customers to obtain switched underlay resources.

A system and method for performing automated negotiation processing in an electronic trading server are described. Users enter negotiation parameters and select one or more securities of interest for trading. An agent performs negotiations on behalf of the user in an automated fashion in accordance with the negotiation parameters. Users may monitor system information and the progress of their own agents through graphical displays of information and may modify the negotiation parameters during the negotiation process.

Embodiments of methods of auto-sequencing transmission speed of a data port are disclosed. One method includes the data port executing auto-negotiation with a second data port, to determine a highest common transmission speed supported by the data port and the second data port, each port advertising transmission speeds the port can support. Transmission signal qualities of each of four pairs of wires of a cable connected to the data ports are determined. It is then determined whether the transmission signal qualities of the pairs is high enough to support a negotiated transmission speed. If transmission signal qualities of the pairs are below a threshold required for the negotiated transmission speed, then the transmission speed advertised by the port is updated depending upon a degree of failure of the transmission signal qualities of the pairs. The auto-negotiation is then re-executed.

An SFP module provides either a 1000Base-X or SGMII interface protocol to a host and provides a 1000Base-T media dependent interface (MDI). If the SFP module is coupled a host that only implements the 1000Base-X protocol then the SFP module translates the 1000Base-X protocol to the 1000Base-T protocol so that the host MAC sees the 1000Base-T SFP module as if it were an optical transceiver. If the host implements SGMII then the SFP performs auto-negotiation of speed and communicates with the host implement data transfer at a selected rate, e.g., 10, 100, or 1000 Mbps.

A computer system comprises host processor and a network interface, wherein the host processor includes resources supporting a full power mode, a lower power mode and a power down mode, as seen in standard system bus specifications such as PCI and InfiniBand. The network interface includes a medium interface unit coupled to network media supporting a least high speed protocol, such as a Gigabit Ethernet or high-speed InfiniBand, and a lower speed protocol, such as one of 10 Mb and 100 Mb Ethernet or a lower speed InfiniBand. Power management circuitry forces the medium interface unit to the lower speed protocol in response to an event signaling entry of the lower power mode. In the lower power mode, the network interface consumes less than the specified power when executing the lower speed protocol, and consumes greater than the specified power when executing the high speed protocol. Logic in the network interface operates in the lower power mode, and uses the lower speed protocol to detect a pattern in incoming packets. In response to the detection of said pattern, the logic issues a reset signal to the host processor. Thus, the network interface operates as a wake-up device in the lower power mode, using the lower speed protocol.

Auto-discrimination between FC and SATA devices upon insertion of a device into a port of a FAST-compatible switch is disclosed. Without user intervention, the port is able to determine the type of device attached, set the appropriate data rate in the Phy or SERDES and, in the case of FC or SATA drives, start the disk insertion process into the active switch zones. The SERDES is first initialized to FC speeds, and the receive path is searched for a receive signal. Upon detecting a receive signal, the detection circuitry then checks to see if a valid SATA Out Of Band (OOB) sequence is received. If a valid SATA OOB sequence is received, the SERDES is configured for SATA speeds and analog settings. If a valid SATA OOB sequence is not received, and instead a FC auto-negotiation process runs to completion, the SERDES remains at FC speeds.

In accordance with one embodiment of the present invention, secure content objects are transcoded from an input format to an output format based upon identified capabilities of a receiving device. In one embodiment, a plurality of trusted processing components are identified to collectively transcode the secure content object from the identified input format to the determined output format. In one embodiment, each of the trusted processing components are authenticated prior to operating on the secure content object.

A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

The invention discloses end-to-end break transferring method based on call control, on the TCP layer based on equal network transmission, the receiver loads the dynamic linking library, and it can realize the end-to-end break transferring via the interface of application program, the steps includes: first the transmitter initializes, starts the main line program of monitoring; when one starts transmitting files or one requires the other to transmit files, it enters the transmitting flow, after the transmitting-receiving sides make agreement, the transmitter starts to transmit file, and the transmitting-receiving sides record the start location and the length of file automatically, if one exit in the transmitting course, and then enters the breaking flow, and the breakpoint file is recorded on the log; next time one side requires the file transmission, then enter the anew transmitting flow, until the file is load completely. The invention solves the problems that scope of application of the break transferring function is single, it has extended scope, the break transferring method can be used in any communication mode in IP network to transmit data to solve the data break problems; it can search and negotiates the data source automatically.

A novel method of operating repeaters or other hub devices in a local area network, such as one conforming to Ethernet protocol, in which there are a plurality of repeater interfaces of respectively different data rates for communicating with a link partner on a network medium. The methodology comprises determining the data rate of operation of the link partner, and based on that data rate, automatically steering data between the network medium and a selected one of the repeaters. In a preferred embodiment, a network transceiver comprises one or more physical layer devices (PHY), and a plurality of shared data busses corresponding, respectively, to the speeds of operation of the repeaters, for interconnecting the repeaters and one or more of the physical layer devices. A multiplexer interconnects each of the one or more physical layer devices to a selected one of the plurality of busses, and an auto-negotiation unit controls the multiplexer to interconnect the physical layer devices to corresponding busses selected depending on the operating speed of the link partner.

The invention discloses a method for realizing the auto-negotiation of speed of a high-speed communication device, comprising the following: step 1, setting an initiator device and an abutting end device of the auto-negotiation of speed; step 2, the abutting end device judges if the abutting end device judges if the communication at the speed selected by the initiator device can be conducted, if the communication at the speed can be conducted, carrying out a step 3; step 3, determining the integrity of the communication link between the initiator device and the abutting end device, if the communication link is good, configuring ports in accordance with the speed for the initiator device and the abutting end device, otherwise, cutting off the communication between the two. The invention adopts a technical proposal which ensures that the communication speed of communication devices at the two ends of a high speed signal line can self-adaptively keep consistent.

The present invention provides a set-up method and apparatus for auto-negotiation that is used in a computer system with a network interface device to reduce the boot up time for the computer system and the complexity of boot up program. In the present invention, some of the operations of initializing the network interface card are performed while the computer system boots up to reduce the entire boot up time of the computer system. Moreover, in present invention, some of the operations in initializing the network interface card are performed by the hardware on the network interface card, which also reduces the complexity of the boot up operation of a computer system.

A transceiver in a communication system and a start-up method thereof are provided. The transceiver comprises an auto-negotiation circuit, a timing recovery circuit, an interference cancellation circuit and an equalizer. The auto-negotiation circuit performs an auto-negotiation procedure to determine whether the transceiver operates as a master or slave transceiver. If the transceiver operates as a slave transceiver, it executes a first stage and a second stage during the start-up process. In the first stage, the transceiver performs channel estimation to generate a channel estimation value, presets the parameters of the equalizer according to the channel estimation value, and trains the timing recovery circuit and the equalizer; in the second stage, the transceiver trains the interference cancellation circuit.

The invention discloses a technical proposal for a method for configuring master-slave network equipment, a device and a system thereof, wherein, the method comprises the following steps: the network equipment receives configuration information of master-slave state; the network equipment carries out physical layer auto-negotiation according to the received configuration information of the master-slave state; setting the configuration mode of the master-slave state of the network equipment as an automatic mode; and cancelling the physical layer auto-negotiation aiming at the setting of the current automatic mode. The technical proposal can avoid the phenomenon that network equipment at two ends needs to carry out the configuration process and the interaction process of the upper layer of information again when the physical layer auto-negotiation is fault and the switching of the master-slave equipment is fault and improves the maintainability of the network equipment.

A system and method are provided for negotiating a link data rate in a communication system using a plurality of data rates. In a system including a first device network-connected to a second device, auto-negotiation (AN) messages are mutually transmitted. The AN messages indicate rate information such as preferred data rate capabilities, if the device has a dual-rate capability, single data rate capabilities, or is capable of communicating over a plurality of physical medium lanes. If the AN messages are mutually transmitted, a negotiated link data rate is established. However, if one of the devices cannot send AN messages, the other device times-out, and a link data rate is established at the data rate transmitted by the device that is not AN-capable.

A method and system of channel negotiation between neighbor BSs are provided. The method includes: a first BS obtaining channel information of all second BSs which neighboring to the first BS in response to starting of the first BS; selecting a channel in the network as a first working channel of the first BS, and requesting all third BSs which are the second BSs occupying the first working channel to switch channel; and determining another channel for each of the third BSs excluding the first working channel as the target channel of the third BS, and switching the working channel of the third BS to the target channel, then occupying the first working channel. The method and system of channel negotiation between neighbor BSs adjust channels between neighbor BSs by negotiation automatically, and resource distribution for the whole network is optimized.

The invention discloses a method and a device used for detecting inter-equipment interface connection. The method comprises the following steps of setting the recommended working parameter of a first interface as a first working parameter; obtaining the second working parameter of a second interface by auto-negotiation operation; judging whether the second working parameter is equal to the first working parameter or not; if not, warning to indicate that connection is not matched; if so, setting the recommended working parameter of the first interface as a third working parameter; sending the third working parameter to the second interface by the auto-negotiation operation; receiving the third working parameter sent by second equipment via the second interface; and enabling the first interface and the second interface to communicate via the third working parameter. According to the invention, whether the second working parameter obtained by the first interface is equal to the set first working parameter or not is judged to judge the matching relationship of the interfaces, the problem that the interfaces are likely to be subjected to mixed insertion in the prior art is solved, the manual operation miss probability is reduced, and the maintainability and the reliability of the communication equipment are improved.

A network probe inserted between two nodes in point-to-point link synchronizes modes of operation between the two nodes. The probe utilizes IEEE 802.3u Clause 28 Auto-Negotiation to detect and advertise corresponding information regarding modes of operation for the nodes between which it is inserted in the point-to-point link, to achieve a highest priority common mode of operation between the nodes.

An apparatus and method for cable diagnostics is disclosed for deployment as part of an Ethernet communication system to conduct diagnostics. The system transmits one or more pulses which are Ethernet compatible and of finite duration. Reflections are detected and through processing and measurement of the amplitude and round-trip delay of the pulse's reflection, cable faults are located. In one embodiment, this innovation uses an IEEE 802.3 compliant transmit pulse, such as an auto-negotiation signal (AN pulse), to conduct cable diagnostics. The benefits of a standard compliant allow for use with any vendor on the far-end and the signal requires no special hardware or software to produce and, therefore, reduces system complexity and cost. To reduce incorrect measurements, the apparatus measures cable length and termination with multiple AN pulses. It then applies non-linear filters to redundant measurements in such a way that it produces accurate cable diagnostics information.

Method for detecting link partner state during Auto Negotiation then switching local state to establish link A method is disclosed for allowing a host network node to establish a compatible communication link with a link partner network node disposed on the opposite end of a physical communication link from the host network node. The host node monitors data traffic received from the link partner network node. The host node then determines from the monitored data traffic from the link partner network node if the link partner network node is requesting configuration information from the host network node. If a request for configuration information is received from a link partner network node, then the host network node is operable to facilitate an exchange of configuration information with the link partner network node to determine if each of the host network node and link partner network node have common communication capabilities that can be configured to allow compatible communication there between over the physical communication link. After either an exchange of configuration information is made and a common configuration is determined at each of the host network node and the link partner network node, or a default configuration is established, then transferring data from the host network node to the link partner node.

The embodiment of the invention discloses an ether port auto-negotiation and network communication equipment. According to a port mode list arranged in advance, from a first port mode, an ether port chip A of a first communication equipment begins to establish a link by the auto-negotiation method of the present port mode and an ether port chip B; if the establishment is failure, the link is switched to a next port mode in the port mode list, until the link is successfully established by the auto-negotiation method of the present port mode and the ether port chip B, and the present port mode is determined as the port mode of the ether port chip B. Consequently, the physical port of the ether port chip A is controlled by switching different port modes for carrying out auto-negotiation with the opposite terminal port, and the invention can fully perform the chip characteristics for supporting multiport modes, enhance interconnection between internal modes of the equipment and boards, improve flexibility of interconnection between equipments, and avoid complexity and cost of software forced arrangement, and avoid trouble of manually operation, and simplify the arrangement of equipment.

The embodiment of the invention provides a stacking realization method, which comprises the following steps: first equipment broadcasts a stacking enabled message via a first port, wherein the stacking enabled message carries information for other pieces of equipment to establish the stacking relationship with the first equipment, the first equipment is the main equipment of a stacking system, the first port for broadcasting the stacking enabled message is used as the stacking port of the first equipment, and the first port is positioned on the first equipment; the first equipment receives a first stacking confirmation message sent by second piece of equipment, wherein the first stacking confirmation message carries the MAC (media access control) address of the second equipment and the information of a stacking port which takes the second port as the second equipment and faces to the first equipment, and the second port is positioned on the second equipment; and the first equipment switches the first port to a stacking port from a common service port to record the MAC address of the second equipment and the topological relationship of the first port and the second port. According to the above embodiment, switches can carry out auto-negotiation to establish a stacking system without manual configuration.