Ring net and method for realizing service

A ring network and service technology, applied in the field of network communication, can solve the problems of increasing data packet overhead, reducing bandwidth utilization, reducing processing efficiency, etc., and achieves the effects of rich SLA, good QoS, and improved efficiency

Inactive Publication Date: 2005-11-16
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0006] At present, the general method is to introduce layer 2 / layer 3 switches at the entry / exit ring and between multiple rings, which makes the network more complicated and the network structure is not clear
Another solution is to use MPLS overRPR (Resilient Packet Data Ring Bearing Multi-Protocol Label Switching) to make up for the shortcomings of RPR, but in this way, two layers are introduced: the RPR layer and the MPLS layer, such as figure 1 As shown, this will increase the complexity of business processing and reduce processing efficiency; at the same time, since the frame format of the RPR ring network is a dedicated format, the introduction of the MPLS layer will increase the overhead of each data packet, reducing the bandwidth utilization.

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  • Ring net and method for realizing service
  • Ring net and method for realizing service
  • Ring net and method for realizing service

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Embodiment Construction

[0046] The core of the present invention is not to rely on the RPR (Resilient Packet Ring) layer, and directly establishes a kind of ring network (elastic MPLS ring network) at the MPLS (Multi-Protocol Label Switching) layer, and the level of the ring network in MSTP is as follows: figure 2 As shown, there is no dependence on the physical layer, and different physical layer technologies can be used as required. exist figure 2 It only describes the case of using GFP (General Framing Procedure) technology at the physical layer, and technologies such as PPP (Point-to-Point Protocol) and HDLC (High Speed ​​Digital Link Connection) can also be used. The topology of the ring network is as follows image 3 As shown, it includes multiple nodes and adopts a double-ring structure, which is divided into a west ring and an east ring. The west ring transmits services clockwise, and the east ring transmits services counterclockwise; different nodes are connected by physical links for lab...

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Abstract

The ring net includes multiple nodes and physical links. Being coupled to each node, physical link accepts load of data at each node in mode of label switching route. Node receives and sends data packed in format of standard frame in label switching multiple protocols. Based on the ring net, the method of implementing operation includes following steps: building dispatch list of label switching route at each node; based on the said dispatch list, service source node obtains service host node; based on prearranged algorithm, service is dispatched to the said ring net; services from different nodes are multiplexing transmitted through same physical channel in mode of label switching route; service is dispatched out of the ring net at service host node.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a ring network and a service realization method thereof. Background technique [0002] With the development of network technology, various new-generation metropolitan area network technologies emerge in an endless stream, among which RPR (Resilient Packet Ring) technology is characterized by its advanced technology, effective investment, superior performance, and diversity of supported services. Metropolitan area network provides a good solution. [0003] The RPR network is a new network architecture designed based on the requirements of the packet metropolitan area network. It is a ring network composed of packet switching nodes. Adjacent nodes are connected by a pair of optical fibers. The network topology is based on two transmissions in opposite directions. The ring that transmits data clockwise is called the outer ring, and the one that transmits data counterc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/413H04L12/42H04L12/46H04L12/56
CPCH04L12/42H04L12/4637H04L45/50H04L12/2852H04L45/00
Inventor 万怀雪
Owner HUAWEI TECH CO LTD
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