Abstract: According to an example, when configuring a multicast entry on an interface board, if the multicast entry is in hash conflict with multicast entries already configured on the interface board, configuring the multicast entry onto the master control board; when an interface board at the inlet receives a multicast message, searching in the multicast entries configured on the interface board for a multicast entry that matches said multicast message; and if a matching multicast entry is found, forwarding said multicast message according to the matching multicast entry; otherwise, sending the multicast message to the master control board; and searching in the multicast entries configured on the master control board for a multicast entry that matches the multicast message; and if a matching multicast entry is found, forwarding said multicast message according to the matching multicast entry.

Abstract: A method for balancing traffic load is disclosed. The method comprises: monitoring, by a stacking device in a distribution layer, traffic in an aggregation link between the stacking device and a core layer; when a traffic unbalance is monitored in the aggregation link, finding by said stacking device a data flow which causes said traffic unbalance from data flows transferred over the aggregation link; and determining by said stacking device an incoming interface through which the found data flow enters said stacking device, reallocating a new MAC address to the incoming interface, and sending the new MAC address allocated to the incoming interface to a terminal server, so as to enable said traffic unbalance to transit to traffic balance by way of said terminal server sending a data flow with the new MAC address as the destination MAC address.

Abstract: A method for manufacturing a Micro-Electro-Mechanical System pressure sensor, including forming a gauge wafer including a diaphragm and a pedestal region. The method includes forming an electrical insulation layer disposed on a second surface of the diaphragm region and forming a plurality of sensing elements patterned on the electrical insulation layer disposed on the second surface in the diaphragm region, forming a cap wafer with a central recess in an inner surface and a plurality of through-wafer embedded vias made of an electrically conductive material in the cap wafer, creating a sealed cavity by coupling the inner recessed surface of the cap wafer to the gauge wafer, such that electrical connections from the sensing elements come out to an outer surface of the cap wafer through the vias, and attaching a spacer wafer with a central aperture to the pedestal region with the central aperture aligned to the diaphragm region.

Abstract: A label switching router (LSR) and a method of switching data traffic to a predefined backup traffic path by the LSR in an MPLS (multi-protocol label switching) network. The LSR, upon detection of failure of a protected path during an LDP session, maintains an LDP session and forwards data traffic via the backup traffic path according to a forwarding table. The forwarding table contains logical output interface information including an outgoing label, a logical output interface, and the next hop of the predefined backup path.

Abstract: According to an example, to access a surveillance network through a Layer 2 Tunnel Protocol (L2TP) includes a private network IP address is assigned to a public network user device, and a route of a surveillance segment is transmitted to the public network user device, such that, after the route of the surveillance segment is received by the public network user device, an IP address of the L2TP virtual interface of the public network user device is configured as a next-hop of the route. When an access request to a surveillance device in the private network is initiated, a routing table of the public network user device is searched to find a matching route of the surveillance segment according to an IP address of the surveillance device. The access request is transmitted to an L2TP server through the L2TP virtual interface, and forwarded to the surveillance device.

Abstract: A method and apparatus for allocating time slots in a baseband EPCN system is provided. The method includes: obtaining a period type of a current period; and determining a proportion between uplink time slots and downlink time slots for the current period according to the period type. According to present invention, different proportions between uplink time slots and downlink time slots may be respectively applied to different periods such as a registration period and a communication period in the baseband EPCN system. Thus, the register time of a new CNU in the registration period is shortened and the requirement for high downlink bandwidth for normal communications in the communication period is guaranteed at the same time.

Abstract: A virtual network storage system includes at least two network storage devices which connect to same SAN. At least one network storage device includes a device management unit for maintaining the mapping relationship between the global volume and the local volume of each network storage device, and for redirecting the access from the global volume to the network storage device which the global volume management unit of the global volume is located. At least one network storage device includes a global volume management unit for executing the access operation to the global volume according to the mapping relationship. A network storage device and virtual method are applied to the virtual network storage system. With the increasing of the network device, the ability of processing the access to the global volume is increased, and then the performance bottleneck caused by virtually operating to the network storage system.

Abstract: According to an example, to load balance a group of servers, a service access request message is sent by a client terminal and is received at a load balancing device, wherein a source Internet Protocol address of the request message is an Internet Protocol address of the client terminal of a first protocol version. A server is selected from the group of servers to send the request message. A determination is made as to whether the first protocol version is same as a second protocol version of an IP address of the selected server. If the versions are the same, the request message is sent to the selected server. Otherwise, network address translation is performed to replace the source Internet Protocol address of the request message with an Internet Protocol address of the second protocol version to send the request message.

Abstract: The present disclosure provides a method for backing up a link state advertisement (LSA) for use in a distributed device comprising a main control board and an interface board. The main control board comprises a primary board and a standby board. The method comprises: receiving by the standby board LSA related information sent by the primary board; and generating by the standby board an LSA according to the LSA related information.

Abstract: A method for detecting an IP address. An access router releases the routes of a detected IP address via a first interface and a second interface, and sets the priority of the route released via said first interface lower than that of the route released via said second interface. After having received by said access router a WEB request by the user via said first interface, the method comprises searching a session record corresponding to said WEB request; establishing by said access router the session record corresponding to said WEB request when the corresponding session record is not found, and returning a redirecting message taking said detected IP address as the re-directed destination IP address; and after having received by said access router via said second interface the message taking said detected IP address as the destination IP address, determining that the user who sent said message is an illegal user.

Abstract: A Pseudo Wire (PW) switching method applied to a MPLS L2VPN comprising U-PE devices and N-PE devices includes checking, by an N-PE device, connectivity of a main U-PW and a backup U-PW between the N-PE device and a U-PE device and connectivity of N-PWs between the N-PE device and other N-PE devices. When one of the main U-PW and the backup U-PW is detected to have failed, transmitting, by the N-PE device, a MAC address clear command through an N-PW in a VSI to which the failed U-PW belongs, and clearing, by an N-PE device receiving the MAC address clear command, MAC addresses associated with the N-PW for transmitting the MAC address clear command in the VSI; and when one of the N-PWs is detected to have failed, transmitting a traffic rerouting command through a U-PW in a VSI to which the failed N-PW belongs and performing U-PW switching.

Abstract: The present invention discloses a packet processing apparatus and method. The packet processing apparatus is applied to an L4˜L7 network device, including a plurality of interface processing units and a plurality of service processing units, the interface processing units are connected with the service processing units through a first connection unit; and each of the interface processing units is adapted to select, after receiving a packet from outside, a service processing unit from all the service processing units and transmit the packet to the selected service processing unit; and each of the service processing units is adapted to perform service processing to the packet after receiving the packet. The present invention improves packet processing capability and reliability of the L4˜L7 network device.

Abstract: A verification method or apparatus applied in a Wireless Local Area Network (WLAN) includes learning an Internet Protocol (IP) address assigned to a station; sending the IP address to a managing device that is managing the access device and receiving, from the managing device, a determination of whether the IP address is used by another station; and verifying a data packet sent by the station by using an IP address that is not used by another station as reported by the managing device.

Abstract: A method and device for preventing a roaming user terminal from re-authentication are provided. The method includes: when Virtual Local Area Network (VLAN) of a roaming user terminal changes, change information of the roaming user terminal is reported to a Broadband Remote Access Server (BRAS) via an Access Controller (AC) and the BRAS reports modified information of the roaming user terminal to an Authentication, Authorization, Accounting server (AAA server).

Abstract: A method for multicast packet transmission by a first provider edge device in a virtual switching instance, in which the first provider edge device transmits, to a second provider edge device in the virtual switching instance, a packet having an address of a private network multicast group and an address of a public network multicast group associated with the private network multicast group. The first provider edge device receives, from the second provider edge device, a join request packet to join the public network multicast group. The first provider edge device stores forwarding information for the public network multicast group, wherein the forwarding information relates to an interface over which the join request packet is received by the first provider edge device. The first provider edge device encapsulates a multicast packet for the private network multicast group with the address of the public network multicast group.

Abstract: A method and member device for forwarding service messages in an Intelligent Resilient Framework (IRF) system and an IRF system. In the method, each member device in the IRF system is allocated to at least two virtual devices, and at least one stack link for each virtual device is configured in order to connect interface boards among different member devices. When it is determined according to a forwarding entry of an interface board in a first member device receiving a service message that the service message is to be transmitted to a second member device, the service message is forwarded via the at least one stack link configured for the virtual device of that interface board.

Abstract: In a method and an apparatus for evaluating air interface condition of a wireless local area network (WLAN), the evaluation of the air interface condition of the WLAN is divided into four layers: the evaluation of the air interface condition of the pre-defined area, the evaluation of the air interface condition of each place in the pre-defined area, the evaluation of the air interface condition of each AP in each place and the evaluation of the air interface condition of each user accessing each AP. The method and apparatus are able to provide definite evaluation denoting the level of the air interface condition through analyzing and quantizing of the statistical information items with respect to the overall air interface condition of the whole area covered by the WLAN or the partial air interface condition of each place, each AP and each user in the pre-defined area.

Abstract: A Micro-Electro-Mechanical System (MEMS) pressure sensor is disclosed, comprising a gauge wafer, comprising a micromachined structure comprising a membrane region and a pedestal region, wherein a first surface of the micromachined structure is configured to be exposed to a pressure medium that exerts a pressure resulting in a deflection of the membrane region. The gauge wafer also comprises a plurality of sensing elements patterned on the electrical insulation layer on a second surface in the membrane region, wherein a thermal expansion coefficient of the material of the sensing elements substantially matches with a thermal expansion coefficient of the material of the gauge wafer. The pressure sensor comprises a cap wafer coupled to the gauge wafer, which includes a recess on an inner surface of the cap wafer facing the gauge wafer that defines a sealed reference cavity that encloses and prevents exposure of the sensing elements to an external environment.

Abstract: In a method for 802.1X authentication, used in a network which comprises an access device and an access control device, a WLAN security template and a 802.1X client template is enabled at the access device, a 802.1X client template is enabled at the access device, and a 802.1X device template is enabled at a tunnel port of the access control device. The access control device establishes a 802.1X authentication tunnel with the access device, receive a packet transmitted by a client at the access control device through the 802.1X authentication tunnel, authenticates the client after receiving the packet, and assists the access device through the 802.1X authentication tunnel to obtain a session key.

Abstract: According to an example, a multicast source may be connected to a first hop Protocol Independent Multicast (PIM) router via one or multiple layer-2 switches that has PIM functions. A first hop PIM router may receive a multicast flow initiated by the multicast source, send a PIM prune message via a port from which the multicast flow is received in response to a determination that the multicast flow is not to be received, or the first hop PIM router may receive a PIM prune message for a multicast flow from a downstream PIM router or a multicast group leave message for a multicast flow from a client connected to the first hop PIM router and delete a port via which the PIM prune message.