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Time division multiplexing data transmission method and device, as well as network-side edge devices

An edge device and time-division multiplexing technology, applied in the field of communication, can solve problems such as insufficient PW label resources

Inactive Publication Date: 2017-01-11
ZTE CORP
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  • Description
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a time division multiplexing data transmission method, device and edge equipment on the network side to solve the problem of insufficient PW label resources in the existing TDM service simulation technology

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  • Time division multiplexing data transmission method and device, as well as network-side edge devices
  • Time division multiplexing data transmission method and device, as well as network-side edge devices
  • Time division multiplexing data transmission method and device, as well as network-side edge devices

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Embodiment Construction

[0083] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to specific embodiments and accompanying drawings.

[0084] In the prior art, traditional TDM service functions are implemented in the PSN network through the PWE3 Layer 2 service bearer technology. Specifically, such as figure 1 As shown, the exchange of the AC link (specifically TDM link) between CE1 and CE2 is realized on the IP / MPLS packet switching network between PE1 and PE2 through the PWE3 technology. For CE1 and CE2, PE1 and PE2 and The IP / MPLS packet switching network is transparent. The PE at the edge of the IP / MPLS packet switching network binds the AC link with the PW, performs TDM service encapsulation, and restores the TDM service at the other end in reverse, thereby implementing TDM service emulation.

[0085] In order to implement TDM data flow encapsulation and decapsulation fu...

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Abstract

The invention provides a time division multiplexing data transmission method and device, as well as network-side edge devices. The method comprises the following steps: acquiring a time division multiplexing data stream, which is required to be transmitted from a first network-side edge device to a second network-side edge device by a user, from a user-side link established by a client-side edge device and the first network-side edge device, and acquiring the VLAN label used for marking the user-side link; encapsulating the time-division multiplexing data stream according to the VLAN label, so that an IP message is obtained; and acquiring a multi-protocol label switching (MPLS) label corresponding to the VLAN label from a pre-saved pseudo-wire (PW) routing table, encapsulating the IP message into an MPLS message according to the MPLS label, sending the MPLS message to the second network-side edge device through a PSN network, and decapsulating the MPLS message by the second network-side edge device to obtain the time-division multiplexing data stream. Therefore, the problem that the pseudo-wire label resources of the conventional time division multiplexing service are insufficient in the simulation technology is solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a time division multiplexing data transmission method, device and edge equipment on the network side. Background technique [0002] As users have higher and higher requirements for bandwidth, the trend of all-IP communication networks is becoming more and more obvious. This requires the transformation of the traditional communication network, and existing network resources cannot be wasted, so it is still necessary to have a service support capability for the traditional Time Division Multiplex (Time Division Multiplex, TDM) link. [0003] In order to implement traditional TDM service functions in a Packet Switched Network (PSN), such as an IP network or a Multi-Protocol Label Switching (Multi-Protocol Label Switching, MPLS) network, an end-to-end pseudowire emulation ( Layer 2 service bearer technology of Pseudo-Wire Emulation Edge to Edge, PWE3). PWE3 is a type...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/723H04L45/50
CPCH04L45/50H04L45/68
Inventor 谢伟生
Owner ZTE CORP
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