Method and device for label configuration in access network based on ANCP (access network control protocol)
A technology of access network and label, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of complex control plane implementation of MPLS network, and achieve the effect of simple label configuration
Active Publication Date: 2014-12-17
ALCATEL LUCENT SHANGHAI BELL CO LTD
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And as stated in WT-178, the access node supporting MPLS must support many control / management protocols related to MPLS, for example, support the MPLS framework according to RFC3031, support the Label Distribution Protocol (Label Distribution Protocol, referred to as LDP) of RFC5036 etc., which makes the implementation of the control plane of the MPLS network relatively complicated
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[0031] In step 206, the AAA server 112 returns an access response to the BNG 110, indicating that user 1's access request is accepted. According to one embodiment of the present invention, the access response includes the LSP information of the virtual access node from user 1 to the VNO 114, and the LSP information includes the information of the access node and the intermediate node on the LSP, and the information of the virtual access node on the LSP. The label corresponding to each physical link and the bandwidth information corresponding to the LSP.
[0032] After receiving the access response, more specifically, after receiving the LSP information, the ANCP server in the BNG 110 generates an ANCP-based access node label configuration message for the access node AN 102 on the LSP (step S208).
[0033] image 3 A schematic diagram showing the format of an ANCP-based label configuration message according to an embodiment of the present invention. like image 3 As shown i...
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The invention provides a method and a device for label configuration in an access network based on an ANCP (access network control protocol). The method includes: acquiring LSP (label switched path) information of services from a user of the access network to the access network, wherein the LSP information includes information of an access node and an intermediate node on the LSP, labels corresponding to all physical links on an LSP and bandwidth information corresponding to the LSP; generating label configuration information of the access node on the basis of the ANCP, wherein the label configuration information of the access node is used for configuring the access node so as to establish a designated access line, an uplink port of the access node and mapping among the labels used in the uplink port of the access point and used for indicating bandwidth occupied by the LSP on the uplink port of the access node; transmitting the label configuration information of the access node to the access node so as to indicate the access node to have the access node configured according to the label configuration information of the access node.
Description
technical field [0001] The present invention generally relates to the field of broadband access network communication, and more specifically, relates to a method and device for configuring labels in an access network based on an Access Network Control Protocol (ANCP for short). Background technique [0002] The future access network has a multi-service architecture, which introduces multi-protocol label switching (MPLS) into the access network (for example, Broadband Forum BBF (http: / / www.broadband-forum.org) documents TR-144, TR- 145 and WT-178). In a conventional MPLS network, data transmission occurs on a Label Switching Path (LSP for short), and LSP information includes information about all nodes on the LSP from the source end to the destination end and corresponds to each physical link on the LSP The label on the LSP makes the implementation of the data plane of the MPLS network relatively simple by using the label on the LSP. And as stated in WT-178, access nodes su...
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IPC IPC(8): H04L12/723H04L45/50
Inventor 温海波杨水根宾梵翔
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD