47 results about "PWE3" patented technology

Core of the invention is conversion module of private MAC address and conversion module of public MAC address in Ethernet exchange equipment. When MPLS message enters into Ethernet exchange equipment, the Ethernet exchange equipment packages the message with private MAC address, and forwards the message to the port corresponding to destination public MAC address based on private MAC address so as to realize forwarding MPLS message through Ethernet exchange equipment. Thus, on second layer and / or third layer of Ethernet exchange chip, the invention also can support multiple operations including PWE3, L2VPN and MPLS flux engineering etc. based on MPLS.

An architecture for providing service mediation in a network having a Layer-2 domain and an MPLS domain includes at least one Layer-2 provider edge device in communication with a first customer site; at least one Layer-2 edge device in communication with the Layer-2 provider edge device; at least one MPLS mediation edge device in communication with the Layer-2 edge device; and at least: one MPLS provider edge device in communication with both the MPLS mediation edge device and a second customer site. An end-to-end connection is established using native Layer-2 signaling, if any, in the Layer-2 domain and PWE3 signaling protocols in the MPLS domain. The MPLS mediation edge device resolves associations between Layer-2 edge devices and MPLS provider edge devices. The service is “mediated” in the sense that native Layer-2 signaling is terminated at the MME, and a new domain, i.e., pseudowire, is established across the MPLS domain.

A method for realizing failure detection comprises the steps of receiving a virtual circuit connectivity verification VCCV-PING message which carries transmitting terminal state information; analyzing the VCCV-PING message, judging whether the transmitting terminal has a failure according to the transmitting terminal state information, and locally setting failure identification when the transmitting terminal has a failure. An embodiment of the invention further provides a device and a system for realizing the failure detection. As the VCCV-PING message is the basic OAM requirement of PWE3, using the extended VCCV-PING message to realize the failure detection is capable of supporting the whole network to realize network failure detection, realizing complete operation mapping, and reducing system realization complexity, development cost and maintenance cost.

The invention discloses a method for realizing time division multiplex (TDM) data transmission. The method comprises the following steps of: transforming a TDM data of a physical layer sent by a local user to a data of a link layer, judging a format of the data of the link layer and performing a corresponding pretreatment operation on the data of the link layer having different formats, PW packaging the pretreated data having different formats, sending to an opposite terminal PE after adding a PW label, paring an outer PW label of a PW packet sent by the opposite terminal PE, judging the format of the data in the PW packet, performing a corresponding de-capsulation operation on the PW packet according to different data formats, transforming the de-capsulated data having different formats into the corresponding data of the link layer, and transforming into the TDM data of the physical layer and then sending to the local user. The invention also discloses a device for realizing time division multiplex (TDM) data transmission. The method and the device of the invention can realize imitating the TDM service on PSN and can further improve the function of the current PWE3 system.