Abstract: A method for communication link for an access network device. The access network device comprises: a node server, an access switch, and a terminal.

Abstract: A new type of network is a network with centralized control function. An Ethernet protocol translation gateway can access the network and obtain from a node server therein MAC address of the Ethernet protocol translation gateway and the MAC address of terminals bound to the Ethernet protocol translation gateway. A data packet to be transmitted from the network to the Ethernet can be forwarded to a target terminal in the Ethernet according to the MACs of the terminals, by adding the MAC of the Ethernet protocol translation gateway and the MAC of the target terminal to the packet. For a data packet transmitted from the Ethernet to the network, the packet can be forwarded to the network according to the destination address of the network in the packet by means of removing from the packet the MAC of the Ethernet protocol translation gateway and the MAC of the target terminal.

Abstract: The present invention discloses a traffic control-based data transmission method, a traffic control-based switch, a node server and a traffic control-based communication system, thereby solving the problem that the quality of network transmission cannot be guaranteed in the present IP network. The method comprises: obtaining, by a switch, the traffic control information for each service request, wherein the traffic control information includes sending time interval and sending data size; receiving, by the switch, a data packet, and putting it into a packet buffer queue; and polling, by the switch, the packet buffer queue, and taking a packet from the packet buffer queue for sending according to the traffic control information. The present invention can realize accurate traffic control, it is applicable for multimedia transmission, and it can guarantee transmission quality.

Abstract: A metropolitan area network (MAN) communications method, a metropolitan area server, a node switch, a node server, and a MAN communication system for solving the incapability of an IP network in ensuring transmission quality. The communications method comprises: a piece of MAN equipment accessing a MAN, the metropolitan area server in the MAN allocating for the network accessing equipment a protocol tag and a MAN address; the MAN equipment comprising the node switch and the node server; the protocol tag being used as a description of the connection between the MAN equipment and the metropolitan area server; for each cross MAN service request, the metropolitan area server allocating a data tag of the corresponding service: the data tag being used as a description of the connection among the service node related to the service. This invention is applicable in multimedia transmission, and is capable of ensuring a stable transmission rate, thereby avoiding delays.

Abstract: A communication method for a novel network is disclosed. The novel network is a network with centralized control function, which includes a main control server and a subordinate network device. The subordinate network device includes a terminal. The method includes the steps: the main control server configures the downlink communication link of the present service, and transmits packets of the present service transmitted from the source terminal to the target terminal according to the downlink communication link. The present invention can guarantee the stability and smoothness of the transmission path, avoid multimedia service delays, ensure state information security requirements, and save hardware resources, thereby guaranteeing the quality of the network transmission.

Abstract: A method for an access network device to access a network is disclosed, which comprises: powering on an access switch, and setting in its internal downlink protocol packet address table that all downlink protocol packets are to be oriented to a CPU module; receiving, by the access switch, a downlink protocol packet sent from a node server and orienting the downlink protocol packet to the CPU module of the access switch, and generating, by the CPU module, an uplink protocol packet and sending the uplink protocol packet to the node server, wherein the downlink protocol packet contains an access network address that is to be allocated; sending, by the node server, a network access command to the access switch, wherein the network access command contains an access network address of the access switch, and the access network address is the access network address to be allocated; and updating, by the access switch, its internal downlink protocol packet address table, as orienting only a protocol packet with a desti

Abstract: A service communication method for an access network apparatus. The access network apparatus comprises a source terminal and a target terminal both connected to the same access switch. The method comprises: a node server, according to a request of a current service, notifying the access switch connected to both the source terminal and the target terminal to set a downlink port of the access switch, to which a data packet of the current service is directed, in an internal data packet address table thereof; the source terminal sending an uplink data packet of the current service; and after receiving the data packet, the access switch directing the data packet to the corresponding downlink port according to the setting of the internal data packet address table thereof, and transmitting the data packet to the target terminal through the downlink port.

Abstract: The present invention discloses a traffic control-based data transmission method, a traffic control-based switch, a node server and a traffic control-based communication system, thereby solving the problem that the quality of network transmission cannot be guaranteed in the present IP network. The method comprises: obtaining, by a switch, the traffic control information for each service request, wherein the traffic control information includes sending time interval and sending data size; receiving, by the switch, a data packet, and putting it into a packet buffer queue; and polling, by the switch, the packet buffer queue, and taking a packet from the packet buffer queue for sending according to the traffic control information. The present invention can realize accurate traffic control, it is applicable for multimedia transmission, and it can guarantee transmission quality.

Abstract: A data transmission method compatible with an Ethernet, an Ethernet protocol translation gateway, a node server and an Ethernet-compatible communication system are provided to solve the problem of a new type of network. The new type of network is a network with centralized control function. The Ethernet protocol translation gateway can access the new type of network and obtain from a node server therein the media access control (MAC) address of the Ethernet protocol translation gateway and the MAC address of terminals bound to the Ethernet protocol translation gateway. Therefore, a data packet to be transmitted from the new type of network to an Ethernet can be forwarded to a target terminal in the Ethernet according to the MACs of the terminals, by means of the MAC of the Ethernet protocol translation gateway and the MAC of the target terminal being added to the packet.

Abstract: A service communication method for an access network apparatus. The access network apparatus comprises a source terminal and a target terminal both connected to the same access switch. The method comprises: a node server, according to a request of a current service, notifying the access switch connected to both the source terminal and the target terminal to set a downlink port of the access switch, to which a data packet of the current service is directed, in an internal data packet address table thereof; the source terminal sending an uplink data packet of the current service; and after receiving the data packet, the access switch directing the data packet to the corresponding downlink port according to the setting of the internal data packet address table thereof, and transmitting the data packet to the target terminal through the downlink port.

Abstract: A method for an access network device to access a network is disclosed, which comprises: powering on an access switch, and setting in its internal downlink protocol packet address table that all downlink protocol packets are to be oriented to a CPU module; receiving, by the access switch, a downlink protocol packet sent from a node server and orienting the downlink protocol packet to the CPU module of the access switch, and generating, by the CPU module, an uplink protocol packet and sending the uplink protocol packet to the node server, wherein the downlink protocol packet contains an access network address that is to be allocated; sending, by the node server, a network access command to the access switch, wherein the network access command contains an access network address of the access switch, and the access network address is the access network address to be allocated; and updating, by the access switch, its internal downlink protocol packet address table, as orienting only a protocol packet with a desti

Abstract: A metropolitan area network (MAN) communications method, a metropolitan area server, a node switch, a node server, and a MAN communication system for solving the incapability of an IP network in ensuring transmission quality. The communications method comprises: a piece of MAN equipment accessing a MAN, the metropolitan area server in the MAN allocating for the network accessing equipment a protocol tag and a MAN address; the MAN equipment comprising the node switch and the node server; the protocol tag being used as a description of the connection between the MAN equipment and the metropolitan area server; for each cross MAN service request, the metropolitan area server allocating a data tag of the corresponding service: the data tag being used as a description of the connection among the service node related to the service. This invention is applicable in multimedia transmission, and is capable of ensuring a stable transmission rate, thereby avoiding delays.

Abstract: A method for communication link for an access network device. The access network device comprises: a node server, an access switch, and a terminal.

Abstract: A communication method for a novel network is disclosed. The novel network is a network with centralized control function, which includes a main control server and a subordinate network device. The subordinate network device includes a terminal. The method includes the steps: the main control server configures the downlink communication link of the present service, and transmits packets of the present service transmitted from the source terminal to the target terminal according to the downlink communication link. The present invention can guarantee the stability and smoothness of the transmission path, avoid multimedia service delays, ensure state information security requirements, and save hardware resources, thereby guaranteeing the quality of the network transmission.