Huawei Technologies Co., Limited

Hong Lv

Jian Tong Li

Jian Li

Yuping Jiang

Peng Ma

A method for a network device to access a packet switched network is applied to a system in which the network device accesses the packet switched network by connecting to PEs in an active-standby mode. The method includes: an active PE and a standby PE each sends a fault detection message to the network device through an interface connected to the network device; the active PE sets the state of the interface to 'up' and advertises a route to a remote PE if a fault detection response returned by the network device is received through the interface within a preset period; otherwise, the active PE sets the state of the interface to 'down' , and withdraws the advertised route; and the standby PE sets the state of the interface to &#x201c;up&#x201d; and advertises another route to the remote PE after receiving a fault detection response through the interface connected to the network device.

Method, system, and apparatus for network device to access packet switched network

A method and a system for sampling a packet as well as a device are disclosed herein. The method includes the following steps: a notification node of an LSP sends obtained information about the protocol type of a packet to a specific netflow sampling entity; the netflow sampling entity determines the protocol type of the packet according to the information about the protocol type after receiving the packet, and samples the packet according to the determined protocol type. Through the embodiments of the present invention, the accuracy of netflow sampling is improved significantly.

Method, system and device of packet sampling

A method, a system, and an apparatus for implementing a layer-2 virtual private network (L2VPN) between autonomous systems (ASs) are disclosed. The method includes: receiving a first L2VPN mapping packet from a first AS; parsing the first L2VPN mapping packet to obtain a first label carried in the first L2VPN mapping packet, applying for a second label which is different from the first label carried in the first L2VPN mapping packet, and generating a second L2VPN mapping packet according to the second label; and sending the second L2VPN mapping packet to a second AS. When multiple VPN users need to establish a multi-protocol label switching (MPLS) L2VPN between ASs, the MPLS L2VPN can be established between ASs through the technical solution under the present invention as long as a link exists between the ASs, thus providing high extensibility, high security, and convenient management of the inter-AS L2VPN.

Method, system and apparatus for implementing L2VPN between autonomous systems

A method for a network device to access a packet switched network is applied to a system in which the network device accesses the packet switched network by connecting to PEs in an active-standby mode. The method includes: an active PE and a standby PE each sends a fault detection message to the network device through an interface connected to the network device; the active PE sets the state of the interface to 'up' and advertises a route to a remote PE if a fault detection response returned by the network device is received through the interface within a preset period; otherwise, the active PE sets the state of the interface to 'down', and withdraws the advertised route; and the standby PE sets the state of the interface to &#x201c;up&#x201d; and advertises another route to the remote PE after receiving a fault detection response through the interface connected to the network device.

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Shenzhen, China

Hong Lv