Abstract: The present invention discloses a method for advertising and processing pseudo-wire (PW) information, which comprises: the sending provider edge (PE) device using two or more methods to group PWs, identifying the group identifier assigned to each PW with each grouping method, and sending all group identifiers of each PW to the receiving PE device; the sending PE device sending to the receiving PE device the notification message that carries information identifying the affected PW group, and the receiving PE device identifying the PWs belonging to the affected PW group according to the received notification. The present invention also discloses the sending and receiving PE devices for advertising and processing PW information. The method and the devices of the present invention can support grouping PWs with more than one method, allowing for flexible use of PW group-based messaging and message processing.

Abstract: The present invention discloses a method for routing in a ring network, the ring network comprising multiple connected nodes, wherein, the method includes: each node in the ring network acquiring topology information of the ring network, obtaining under-ring routings learnt by the other nodes from a under-ring network, calculating a main path and a backup path to each routing according to the acquired topology information of the ring network, creating an FRR switch table, and switching between the main path and the backup path according to the FRR switch table when a failure occurs in the ring network. Accordingly, the present invention also provides a node in the ring network. Adopting technical scheme provided by the present invention, a simple routing implementation for ring network and fast convergence when a failure occurs can be provided.

Abstract: The present invention discloses a method of balancing wireless load and an Access Controller (AC). The method includes: receiving by an Access Controller (AC) an association request of joining an Access Port (AP) sent by a Station (STA); calculating wireless load of the AP that the STA requests to join; determining whether one or more preset conditions are met, if the one or more present conditions are met, accepting the association request sent by the STA; otherwise, rejecting the association request sent by the STA. In the present invention, when an AP's wireless load is too large, STAs can be distributed to other APs, thereby optimizing load balance in the Wireless Local Area Network (WLAN).

Abstract: The present invention discloses a method for processing multiple active devices in a stacking system. In the method, each active device in a stacking system exchanges unique identity information with any another active device through a preconfigured Bidirectional Forwarding Detection (BFD) session when a stacking link in the stacking system is in failure, determines an active priority of its own by comparing unique identity information of its own with the unique identity information received; and the active device stops providing services as an active device when determining that the active priority of its own is not the highest priority. The present invention also discloses a member device in the stacking system. The present invention can solve the collision of multiple Active devices, and is applicable to both a stacking system including two member devices and a stacking system including more than two member devices.

Abstract: The present invention discloses a virtual tape library (VTL) backup system, and a method of hard disk drive (HDD) power control in VTL devices. In the VTL backup system, a disk control module (DCM) is added to the VTL device and an agent module is added to the backup server. When a backup or disaster recovery (DR) operation is triggered, the agent module in the backup server can inform the disk control module (DCM) in the VTL device to trigger the VTL device to power on all the HDDs before the operation starts, and to power off all the HDDs after the operation ends. Power saving in the VTL device is achieved through power control over the HDDs.

Abstract: The present invention discloses a method, system, and engine dispatch unit for content search, wherein the engine dispatch unit connects to at least a processor and two search engines, obtains objects from the processor(s), and selects search engines to perform content search according to the load of each search engine; the selected search engines perform content search for the objects according to preset matching rules. Solutions of the present invention can effectively improve content search performance.

Abstract: A midplane of a communication device, includes the first connectors and the second connectors which connect with each other via high-speed traces, the first connectors arrange in parallel at one side of the midplane, the second connectors arrange in parallel at the other side of the midplane and in parallel with the first connectors. The wiring of high-speed traces between the first connectors and the second connectors can be disposed on the whole midplane, so that it avoids the high density of wiring in part of midplane, reduces the number of layers of the midplane and the complexity of design, and reduces the crosstalk in signals. And the cooling of the whole communication device can be accomplished by only one heat dissipation system, it reduces the complexity of design of the communication device. The area between each frames of the midplane is provided to allocate electrical power in the communication device with two or multiple frames, it reduces the costs of the communication device.

Abstract: The present invention discloses an Ethernet access device and method thereof. The device includes at least two downlink physical port units, a multiplex/demultiplex unit and an uplink physical port unit. The downlink physical port unit is adapted to convert between a low-speed physical layer signal input to/output from the access device and a low-speed physical layer load carried therein; the uplink physical port unit is adapted to convert a high-speed physical layer signal input to/output from the access device and a high-speed physical layer load carried therein; and the multiplex/demultiplex unit is adapted to multiplex and demultiplex between the low-speed physical layer load of the downlink physical port unit and the high-speed physical layer load of the uplink physical port unit.

Abstract: The present invention discloses a method of dual stack access, wherein a network device authenticates the first protocol address of a requesting client, stores the user name, first protocol address, and address status information of the client in the user information table if the authentication succeeds, assigns a second protocol address to the client, stores this second protocol address and address status information in the user information table, generates control rules for the client according to its user information, and controls dual stack access of the client according to the rules. This invention provides effective authentication-based access control of dual stack users.

Abstract: The present invention discloses a long-reach Ethernet system. The system includes a first Ethernet device and a second Ethernet device which communicate with each other, and a relay; wherein one of the first Ethernet device and the second Ethernet device is a conventional Ethernet device, and the other one of the first Ethernet device and the second Ethernet device is a conventional Ethernet device or a long-reach Ethernet device; the first Ethernet device and the second Ethernet device communicate with each other via the relay; and the relay is adapted to transform conventional Ethernet data into long-reach Ethernet data and transform long-reach Ethernet data into Ethernet data. The present invention can realize the communication of two Ethernet devices when at least one of the two Ethernet devices is a conventional Ethernet device and a working distance between them is longer than 100 meters.

Abstract: A computer readable medium including executable instructions to analyze radio frequency (RF) tag information includes executable instruction to access cross-enterprise RF tag information, identify a product transition based upon the cross-enterprise RF tag information, and define a new product path based upon the product transition, where the new product path defines product pedigree information. Additional executable instructions authenticate a user, secure product information, supply product pedigree information corresponding to the product information, and verify the pedigree of the product based upon the product pedigree information.

Abstract: A power supply system is provided, which includes a power supply subrack (PSS) and a power cable distributor (PCD). The PSS includes one or more power modules and a third connector (51), and the PCD is adapted to introduce one or more electrical signals from power input cables. The third connector (51) in the PSS is connected to the PCD and adapted to feed the introduced electrical signals to the power modules. Furthermore, a power cable distributor, a power supply subrack adapted to work with the PCD and an integrated equipment are provided.

Abstract: A temperature compensated CMOS RC oscillator circuit changes the source-bulk voltage to stabilize the MOSFET's threshold voltage variation over temperature using a resistor and temperature-correlated bias current. The MOSFET's source is connected to ground through a resistor. This temperature-correlated bias current also runs through this resistor. When temperature increases, the bias current also increases, which increases the MOSFET's source-bulk voltage. The increased source-bulk voltage helps to stabilize the threshold voltage of MOSFET at high temperature. A power saving logic is also embedded in this oscillator to achieve higher frequency at lower power consumption. In the present invention, there is no high gain op amp or high speed comparator, which makes the resultant oscillator to be low power design and which can be integrated into a single chip with other system.

Abstract: A data packet access control apparatus and a data packet access control method are disclosed. RAM resources in a data packet processing chip are used to implement a Bypass FIFO. The Bypass FIFO is used as a first-level cache for small amount of data, and an external RAM of the data packet processing chip is used as a second-level cache for large amount of data. In this way, some data packets are read and written within the chip and not all data packets have to be read and written through the external RAM. A data packet reading/writing operation may be performed to the external RAM by a BANK interleave mode.

Abstract: A method and apparatus for transmitting data in a coax network, a coax distribution network including an access point and a plurality of coaxial terminals connected to the access point through splitters, a same physical transmission channel is adopted for transmitting uplink data and downlink data between the access point and each coaxial terminal in the coax distribution network, the method including: Step S1: dividing an entire time duration of a physical transmission channel for transmitting information into time slices to constitute an uplink data transmission channel and a downlink data transmission channel; and Step S2: transmitting uplink data and downlink data between the Ethernet access point and each coaxial terminal at different time slices respectively.

Abstract: Embodiments of the present invention provide a method and device for traffic forwarding in a stacking apparatus which includes multiple member devices. The method includes: obtaining, by a member device, a forwarding table size of each member device in the stacking apparatus; choosing a member device having the largest forwarding table as a proxy device when a forwarding table of another member device in the stacking apparatus is larger than that of the member device; transmitting all or part of to-be-forwarded traffic to the proxy device which performs traffic forwarding. According to the present invention, forwarding capability of member devices having larger forwarding tables is utilized for providing proxy forwarding for member device having smaller forwarding tables, so that forwarding sizes of the member devices having different forwarding table sizes in the stacking apparatus are unified and forwarding capabilities of the member devices in the stacking apparatus are fully used.

Abstract: The present invention provides a method and device of load-sharing in an IRF stack. The method includes: the Master device checking a congestion state of the main path, obtaining a path for forwarding service flow according the congestion state of the main path, where the path is the main path or a backup path, and forwarding the service flow to the egress device through the main path or the backup bath to implement the load-sharing in the IRF stack. In the embodiments of the present invention, by checking the congestion states of main path and the backup path in real-time, the load-sharing of the IRF stack is implemented. When new service flow is added, the data may be forwarded through another path, which can improve the efficiency of member devices in the IRF stack and solve the problem of forwarding bottleneck to which the member devices face.

Abstract: A method, system and gateway for remotely accessing an MPLS VPN are provided. In the method, multiple virtual interfaces are established in an SSL VPN gateway, one virtual interface is bound with one VPN, different VPN users are differentiated according to authentication and authorization information of users, and the authentication and authorization information of the users is respectively bound with corresponding VPNs. When the SSL VPN gateway receives a packet sent by a user, an inner label and an outer label are added to the packet according to a VPN instance bound with the user; when receiving a response packet from a resource server, the SSL VPN gateway searches for a VPN instance according to the VPN label, and forwards the response packet to the user through the SSL connection according to the found VPN instance.

Abstract: The invention provides a stacking system and a method for traffic switching in the stacking system, comprising: when newly joined devices in the stacking system make the daisy chain topology change to ring topology, block a stack port of one of the newly joined devices; after the devices in the stacking system perform another topology convergence process, the master restores the configuration of the newly joined devices; after the configuration of the newly joined device one of whose stack ports is blocked is restored, it sets its blocked stack port to the forwarding state, calculates the shortest path based on the ring topology, and sends first notification packets for topology change from daisy chain type to ring type through its two stack ports; each device that receives the first notification packets re-calculates its shortest forwarding path respectively and switches the traffic, and then forwards the first notification packets.

Abstract: The present invention discloses a method of multi-active detection and a stack member device. Each member device in a stack is configured with a detection interface that is assigned an IP address, wherein the IP address of the detection interface on the designated active device is activated. Each member devices is also configured with an active device election rule, and with a correspondence between the IP address of the detection interface on each member device and the active device election parameter of the member device. Upon detection that the stack has become split, each designated standby device transitions to become an active device and activates the IP address of its detection interface.