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Service transport method and device

A business and node technology, applied in the field of communication, can solve the problem of manual configuration of a large number of IPRAN network service channels, and achieve the effect of facilitating the establishment of service channels and saving labor and time costs

Inactive Publication Date: 2016-05-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a service transmission method and device to at least solve the problem of requiring a large number of manual configurations in the IPRAN network service channel in the related art

Method used

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  • Service transport method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] This embodiment takes the node insertion situation as an example to describe in detail, taking Figure 4 The network structure shown is taken as an example. When a new device is connected to the network, how to create and open a label forwarding channel by extending the OSPF protocol to realize the plug-and-play function of the device:

[0066] S2, in the Ethernet unnumbered interface network, when an A1 access node just joins such as Figure 4In the shown IPRAN network, A1 node will automatically form a management loopback IP address according to the routerID, bridge MAC and system serial number configured by default on the original equipment, start the OSPF protocol process of this node by default, and set DCNVRF (4094 ) and point-to-point (P2P for short) port types; for the unique tunnel information allocated by this node, it can be automatically allocated through the network management DCN channel or issued by the controller;

[0067] S4, the A1 node starts the OSP...

Embodiment 2

[0073] This embodiment takes the node deletion situation as an example to describe in detail, Figure 7 is a schematic diagram of automatically establishing a forwarding channel for deleting a node label according to a preferred embodiment of the present invention, with Figure 7 The structural diagram shown is an example, describing how other nodes re-establish the label forwarding channel when A1 on the IPRAN network fails or loses power;

[0074] S2, when the A1 node fails or loses power, the adjacent nodes A2 and A4 on both sides of A1 will detect the loss of the connection of A1, delete the RouterID of the A1 node from the adjacent node information database, manage the IP address and the assigned labels and other information, and change the routing table information, such as Figure 7 In the routing table information on node A2, change the next hop information to the destination node B from A1 to A4, and send the changed routing information to its new neighbor node A3 th...

Embodiment 3

[0079] In this embodiment, the label allocation situation is taken as an example for detailed description. Figure 8 is a schematic diagram of the node forwarding label allocation process according to a preferred embodiment of the present invention, with Figure 8 The example shown in the figure briefly describes the process of how IPRAN network nodes allocate unique MPLS labels in the entire network;

[0080] S2, for Figure 8 For A1, A2, A3 and aggregation node B, after opening the DCN management channel of each node, the NMS network management system, through the DCN channel, encapsulates the unique identification information such as MPLS label or VLAN allocated by each node into an IP In the message, it is sent to each node for distribution through the standard Ethernet frame;

[0081] S4, if the centralized distribution method of the controller is adopted, such as Figure 8 As shown, the controller can configure unique forwarding labels or identifiers for nodes A1, A2,...

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Abstract

The invention discloses a service transport method and device. The method comprises that a first node generates a route forwarding table to reach other nodes according to the topology structural of the whole network, and a tunnel forwarding table is established according to addresses of target nodes in the route forwarding table and corresponding tunnel ID; and according to the tunnel ID in a service message and the tunnel forwarding table, the first node carries out service transport. According to the invention, the problem that a lot of manual configuration is needed in the IP RAN network service channel in the related arm is solved, a plug-and-play function of a device is realized, great convenience is provided for establishment of service channels of the IP RAN network, and the labor and time cost due to manual configuration is reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a service transmission method and device. Background technique [0002] In the current IP-based wireless access network (Internet Protocol Radio Access Network, referred to as IPRAN) network service channel configuration and establishment, the address of each port on the node is mainly configured or set manually or through network management, and the internal The Gateway Protocol (InteriorGatewayProtocol, referred to as IGP) learns the network topology, calculates the optimal path according to the routing algorithm, and then establishes a service channel through routing signaling protocols such as Label Distribution Protocol (abbreviated as LDP); or manually or through network management Statically configure a service channel between each access node and aggregation node on the IPRAN network; with the expansion of the network scale, especially in the IPRAN network, there are a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/751H04L45/02
CPCH04L12/46
Inventor 刘国满曲延锋廖婷
Owner ZTE CORP
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