Huawei Technologies Co., Limited

Huawei Technology Co., Ltd.

Chunzhe Hu

Peng Zhou

Yuangui Wen

A method for accessing VPN using PW Emulation Edge-to-Edge Virtual Leased Line includes: configuring a first PW ID in a first Provider Edge Device that hosts a VSI, and an IP address of a second Provider Edge Device that hosts an PW Emulation Edge-to-Edge Virtual Leased Line associated with the PW ID; sending a second PW ID of the second Provider Edge Device to the first Provider Edge Device; determining whether the second PW ID of the second Provider Edge Device matches the first PW ID of the first Provider Edge Device, if it matches, setting the state of the PW between the first Provider Edge Device and the second Provider Edge Device; delivering a Forwarding Table by the first Provider Edge Device; establishing a bi-directional connection between the PW Emulation Edge-to-Edge Virtual Leased Line and the VSI. A Virtual Private System, a first Provider Edge Device, and a second Provider Edge Device are also provided.

Method for accessing virtual private network, virtual private system, virtual private network and provider edge device thereof

A communication method for interworking of local heterogeneous link protocols, includes the following steps: when the type of an input interface of a data packet is a predefined type, remove link layer information of the data packet according to a link protocol of the input interface; transmit the data packet to an output interface; a Provider Edge (PE) encapsulates the data packet according to a link protocol of the output interface and transmits the encapsulated data packet through the output interface. The present invention also discloses a communication apparatus for interworking of local heterogeneous link protocols, including: an input interface, an output interface and a data processor. The present invention processes data packets from specific interfaces and directly transmits the data packets to output interfaces, thereby implementing the interworking of local heterogeneous link layer protocols and smooth upgrading of networks.

Communication method for interworking of local heterogeneous link layer protocols and apparatus thereof

A method for implementing hierarchical Virtual Private LAN Service (VPLS), includes: using Border Gateway Protocol (BGP) in a VPLS network; and implementing hierarchical VPLS in the VPLS network by using the BGP. The invention further provides a system for implementing hierarchical VPLS.

Method and system for implementing hierarchical VPLS

A method and a system for implementing virtual circuit status consistency. A transmitting provider edge router (PE) send an extended network layer reachability information (NLRI) message to a remote PE; the remote PE updates the status of the virtual circuit from the remote PE to the transmitting PE, according to the received extended NLRI message, so as to make the status of the virtual circuits between the transmitting PE and the remote PE consistent. A system for implementing virtual circuit status consistency, the first provider edge router (PE) in the system sending an extended network layer reachability information (NLRI) message to a second provider edge router (PE); the PEupdates the status of the virtual circuit from the PEto the PEaccording to the received extended NLRI message, so as to make the status of the bidirectional virtual circuits between the PEand the PEconsistent.

Method and system for implementing virtual circuit status consistency

The present invention discloses a method based on Border Gateway Protocol message for controlling message security protection, the method comprises the communicating process of the authentication mechanism and the authentication word between the message sending side and the message receiving side. If the communicating is successful, the message receiving side will authenticate the 16-byte tag field in the BGP message head of the message sent by the message-sending side according to the authentication mechanism and the authentication word; after the BGP connection is established, the message-sending side will send a BGP message according to the former 16-byte tag field in the message head determined by the authentication mechanism and the authentication word, the message receiving side authenticates the received BGP message according to the determined former 16-byte tag field in the BGP message head, if it pass the authentication, the message will be received, otherwise the message will be abandoned; through said scheme, the BGP message head can be encrypted, even though the BGP message is intercepted illegally, the content is unavailable, and BGP session and the whole network will not be attacked according to content of the BGP message.

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Shenzhen, China

Chunzhe Hu