Abstract: A Quad-Data Rate (QDR) controller and an implementation method thereof are disclosed in the present invention. The controller includes: an arbiter, used to arbitrates commands and data according to the state of the control state machine; a read data sampling clock generating module, used to generate read data sampling clocks with the same source and same frequency and different phases; a read data path calibrating module, used to determines, among the generated read data sampling clocks, sampling clocks of positive edge data and negative edge data for the read data path module to read data by reading training words when the control state machine is in “read data path calibrating state”; a read data path module, used to synchronizes the positive edge read data and negative edge data in a non-system clock domain to the system clock domain according to the determined sampling clocks.

Abstract: The present invention provides a method of supporting a multi-port virtual local area network (VLAN) with a multi-protocol Label switch (MPLS), comprising steps of: establishing a label switching path (LSP) by the label distribution protocol (LDP), and obtaining information binding a forwarding equivalence class (FEC) and a label or information binding an ingress label and an egress label, and an address of a LDP peer entity at an opposite end, which is a next-hop IP address; the MPLS table item managing module creating a forwarding-relation table, and adding a forwarding-relation table item based upon the obtained information; obtaining an egress port corresponding to the forwarding-relation table item based upon the next-hop IP address; and accomplishing the MPLS via the egress port. With the present invention, it is possible to support the multi-port VLAN in a three-layer switch with the function of the MPLS and implement the MPLS in the VLAN.

Abstract: In the field of network communications, a method, a system, a gateway device, and an authentication server for allocating multi-service resources while multiple services of a same user access to a network are provided. The method includes the following steps. A service request message sent by a first service terminal is received. Service capability and user identification of the first service terminal and a count of available resources that corresponds to the user identification are obtained. Resources are allocated for the first service terminal based on the service capability and the user identification of the first service terminal and the count of the available resources that corresponds to the user identification. Thus, the configuration of the gateway device is simplified, and the scale deployment for different services is achieved.

Abstract: A method for optimizing communication between mobile nodes (MNs) in a mobile IP network includes the steps for sending: data packets from a MN in a mobile IP network to its foreign agent device, receiving the data packets at the foreign agent device, determining that a destination MN is attached to the foreign agent device, and forwarding the data packets to the destination MN.