Huawei Technologies Co., Limited

Xindong Teng

Guangyu Sun

Peng Gao

Hongtao Guo

Dayong Guo

Shengtao Sun

Chenxi Hu

Yong Yang

Fei Zheng

Yan Qi

Ming Wei

Xuejiang Zhang

Zhenxiao Liu

Minglei Li

Qiang Zhao

Jiansen Yang

Jingze Guo

Feng Gang

Hongsen Mao

Shudong Wang

Hongzhou Jiang

Embodiments of the present invention disclose a virtual network device. The virtual network device is configured to implement a broadband network gateway BNG function, and the virtual network device includes a load balance unit and a first forwarding unit; the load balance unit is configured to: receive a first data packet from a first user terminal, determine the first forwarding unit according to the first data packet and a first correspondence, and send the first data packet to the first forwarding unit, where the first correspondence indicates mapping from the first user terminal to the first forwarding unit; and the first forwarding unit is configured to receive and forward the first data packet. In addition, the embodiments of the present invention further disclose a method for implementing load sharing in a virtual network device.

Virtual network device and related method

Embodiments of the present invention provide a method for implementing P2MP multicast, a network node, and a system. The method includes: acquiring, by a network-side leaf node, an mLDP label of a downstream user-side leaf node and FEC information from an mLDP mapping message of the downstream user-side leaf node, then sending an mLDP mapping message that includes an mLDP label and the FEC information, to an upstream network-side root node, and generating a forwarding entry; searching for or establishing an RSVP P2MP LSP, allocating a label to the FEC information, and associating a forwarding entry of each network-side leaf node with the label of the FEC information; and sending an mLDP label of the network-side root node and the FEC information to an upstream user-side leaf node, and associating the mLDP label with the RSVP P2MP LSP and the label of the FEC information.

Method for implementing point-to-multipoint multicast, network node, and system

A method and apparatus for bandwidth adjustment in a network virtualization system is described herein. The network virtualization system includes a central module and m remote modules, where the m remote modules are connected to a physical interface of the central module by n PWs. The method includes: acquiring, from the m remote modules, a real-time bandwidth of each PW of the n PWs; when a sum of the acquired real-time bandwidths of the n PWs is greater than a bandwidth of the physical interface, adjusting configured bandwidths of P PWs; and separately sending values of adjusted configured bandwidths of the P PWs to the remote modules separately connected to the P PWs.

Method and apparatus for bandwidth adjustment in network virtualization system

Embodiments of the present invention provide a data processing method and a data processing device. If to-be-compressed data includes a data fragment that is the same as a first half of a variable block in a duplicate database and is different from a second half of the variable block, a new variable block with granularity smaller than that of the matching variable block can be generated, and the new variable block is added to the duplicate database. The granularity of the new variable block is smaller, which increases the probability of subsequent to-be-compressed data matching the updated duplicate database, thereby improving compression efficiency.

Data processing method and data processing device

Embodiments of the present invention disclose a streaming service load sharing method, a streaming service processing method, and a corresponding device and system. According to the embodiments of the present invention, a fixed allocation range is determined for each service node, so that when a service node fails and needs to perform smoothing of stream table items, only a fixed allocation range of the failed service node needs to be shared by other service nodes, thereby better ensuring stability of a processing range of the service node, and reducing the number of the stream table items to be smoothed.

Streaming service load sharing method, streaming service processing method, and corresponding device and system

A hash table storage method includes: obtaining attribute information of at least two levels of hash tables; sequentially obtaining Key information from a received packet according to the attribute information of the at least two levels of hash tables; sequentially determining whether the Key information is stored in its corresponding hash table; and storing the Key information in its corresponding hash table if the Key information is not stored in its corresponding hash table.

Hash table storage and search methods and devices

A reliability processing method and system in networking of Metro Ethernet Network providing multi-service are provided. The method includes: establishing a Virtual Router Redundancy Protocol (VRRP) group with at least two service control gateways, establishing network connections between an access device (UPE) and the service control gateways in the Virtual Router Redundancy Protocol group by a Virtual Private LAN Service (VPLS); establishing Layerservice and Layerservice connections between an active service control gateway and the Access device after active and standby service control gateways in the Virtual Router Redundancy Protocol group are determined according to a processing result of a Virtual Router Redundancy Protocol message, and performing Layerservice and Layerservice processing. With the present invention, when the MAN service is in fault, all the Layerand Layerservices may be switched to the standby service control gateway quickly, and the switching may be on the order of milliseconds. Therefore, the reliability of the Layerand Layerservices of the MAN may be sufficiently guaranteed, and the overhead of the system may be reduced significantly.

Reliability processing methods and systems in the networking of metro ethernet network providing multi-service

The present invention discloses a method, system and device for removing Media Access Control (MAC) addresses. The method includes: sending, by a first User-facing Provider Edge (UPE), a MAC Address Withdraw message, when a handover happens on an access network; receiving, by a network provider edge (NPE), the MAC Address Withdraw message; and removing, by the NPE, a Backbone Media Access Control (B-MAC) address table corresponding to a Virtual Private LAN Service (VPLS) network and forwarding the MAC Address Withdraw message, if the message carries no specific identifier; or directly forwarding, by the NPE, the MAC Address Withdraw message, if the message carries a specific identifier. In the present invention, a specific identifier is added to a MAC Address Withdraw message so as to avoid unnecessary MAC address learning by NPE and UPE devices and to reduce the impact, caused by MAC address learning, on network devices.

Method, system and device for removing media access control addresses

A method, an apparatus and a system for operating Quality of Service, QoS, based on stream, are provided. The method may include: delivering a Real-Time Transport Protocol, RTP, data stream feature to a forwarding plane; learning a RTP packet which is delivered by the forwarding plane conforming to the RTP data stream feature; and judging the RTP data stream to be a determined RTP data stream based on the RTP packet learned; identifying and monitoring the determined RTP data stream to obtain control strategy of QoS of the determined RTP data stream; and delivering the control strategy of the QoS of the determined RTP data stream to the forwarding plane so that the forwarding plane manipulates QoS of the determined RTP data stream based on the control strategy of QoS.

Method and apparatus for QoS control

A method for establishing a hierarchical network with Backbone Provider Bridges includes: dividing the network into a plurality of layers, and partitioning each layer into at least one domain; each domain assigning a service tag for itself; a local domain sending a mapping request including a user type ID to a further domain in the same layer; the further domain in the same layer returning a service tag corresponding to the user type ID to the local domain; the local domain establishing and saving a mapping relationship; and edge devices of each domain learning MAC addresses. Further, a system and device having the same are also provided in the disclosure.

Method and system for establishing hierarchical network with provider backbone bridges

The invention relates to a method for preventing TCP SYN package flood attack, and belongs to the computer network security field. First, the firewall receives a client a TCP SYN connection request package, and responses, as an agent of the server, an acknowledgement of the TCP SYN connection request package with zero window size to the client. Then, the firewall records information about the TCP SYN connection request package and checks whether the connection request is legal. When the firewall has received a TCP SYN response package from the server, it returns an acknowledgement of said TCP SYN response package. At the same time, the firewall, as an agent of the server, sends an acknowledgement packet with nonzero window size to the client for initiating data transmission from the client. After that, data packets are transferred between the client and the server forwarded by the firewall as an agent. With the invention method, it can guarantee that protected servers in a computer network will not be destroyed by TCP SYN package flood attack.

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Shenzhen, China

Xindong Teng