Distributed resilient network interconnection-based service bearing method and device

An elastic network and service bearing technology, applied in the communication field, can solve problems such as traffic interruption, reduce the impact of services and improve user experience.

Active Publication Date: 2014-06-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem in the related art that the aggregated link or the intra-terminal system fails to cause traffic interruption, the present invention provides a service bearing method and device for distributed elastic network interconnection, so as to at least solve the above-mentioned problem

Method used

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  • Distributed resilient network interconnection-based service bearing method and device
  • Distributed resilient network interconnection-based service bearing method and device
  • Distributed resilient network interconnection-based service bearing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] The implementation scheme of negotiating service bearer in DRNI in this preferred embodiment includes:

[0087] In step 1, the in-device system notifies the status of the synchronization port to other in-device systems of the local end point through the Distributed Relay Control Protocol (DRCP for short).

[0088] Wherein, the port status information is carried in the DRCP protocol message in the form of TLV, and the port status is periodically synchronized between the internal systems. In addition, when the state of the port changes, it is triggered to notify other internal systems of the change of the port state, so that the port states between the internal systems are synchronized.

[0089] The above-mentioned port status TLV may carry information such as aggregation port status and aggregator status. Wherein, the notification triggered when the state of the aggregation port changes may be: when the distribution enabling state of the aggregation port changes, the no...

Embodiment 2

[0127] In this preferred embodiment, the description is made by taking the port negotiated and updated between the internal systems at one end of the DRNI as a physical port as an example. Figure 14 is a schematic diagram of networking according to Embodiment 2 of the present invention, such as Figure 14As shown, the two ends of the aggregation group are composed of 1 endpoint, and each endpoint is composed of 2 in-end systems. Among them, endpoint 1 is composed of in-end systems A and B, and endpoint 2 is composed of in-end systems C and D. . Link 1, link 2, link 3, and link 4 between endpoint 1 and endpoint 2 are aggregated into a distributed LAG. The information exchange and service forwarding of each end system in Endpoint 1 will be described below, and the processing method of each end system in Endpoint 2 is the same as that of Endpoint 1.

[0128] Step 1, the intra-end systems A and B in the endpoint 1 are configured and negotiated to obtain a global service port ta...

Embodiment 3

[0171] In this preferred embodiment, the description is made by taking the port negotiated and updated between the internal systems at one end of the DRNI as a physical port as an example. Figure 16 is a schematic diagram of a terminal system failure according to Embodiment 3 of the present invention, as shown in Figure 16 As shown, on the basis of Embodiment 2, when the internal system fails, the processing process is as follows:

[0172] When end-end system A fails, end-end system B detects that the connection information of end-end system A is lost, and end-end system B still keeps joining the aggregation group. End-end system B obtains the services affected by the fault as "001, 002, 005, 006" from the saved port service table (such as Table 3) or aggregator service table (such as Table 4) of end-end system A. At the same time, update the aggregator and port status information of the end-end system A, and set the aggregator and port status of the end-end system A as una...

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Abstract

The invention discloses a distributed resilient network interconnection-based service bearing method and device. The method includes the following steps that: states and/or port states of inside-end systems in a distributed resilient network interconnection (DRNI) end point are synchronized between the inside-end systems; the inside-end systems detect that an event has occurred, wherein the event is used for triggering the update of inside-end systems and/or ports that bear services; the inside-end systems determine services that are affected by the event; and the inside-end systems update the inside-end systems and/or ports that bear the services according to the sequence of the inside-end systems that bear the services and the sequence of the ports that bear the services as well as the states of the inside-end systems in the end point and/or the states of the ports. By means of the distributed resilient network interconnection-based service bearing method and device of the invention, the problem of flow interrupt when faults occur in aggregated links or inside-end systems in the prior art can be solved, and influence on services which is caused by the faults can be decreased, and user experience can be improved.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a service bearing method and device for a Distributed Resilient Network Interconnect (DRNI for short). Background technique [0002] With the rapid development of broadband services, more and more interconnections between networks are used to carry more services. According to the technologies used inside the network, there are many ways to protect links and nodes. As the demand for traffic protection becomes stronger and higher, some operators have also raised the need to protect the network interconnection area. The protection can be realized by means of port aggregation, and the commonly used methods can be port aggregation or loop protection. The ring network protection technology is limited by the network topology, and it is not applicable to the whole network connection method for the network interconnection part. The existing IEEE standard 802.1AX-link aggregat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/24
CPCH04L12/46H04L47/41Y02D30/50
Inventor 许雪琼喻敬海敖婷
Owner ZTE CORP
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