CN107493237A

CN107493237A - The DCN of point-to-multipoint and multiple spot and Mulit-point Connection is from circulation method

Info

Publication number: CN107493237A
Application number: CN201710627057.8A
Authority: CN
Inventors: 赵小威; 肖光伟
Original assignee: Shanxi Shanshui Optoelectronic Technology Co Ltd
Current assignee: Shanxi Shanshui Optoelectronic Technology Co Ltd
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2017-12-19

Abstract

The DCN of point-to-multipoint and multiple spot and Mulit-point Connection is from circulation method, DCN P2P logic interfacings are extended under ospf protocol, make on same P2P interfaces while support to handle multiple neighbor informations, and increase LLDP auxiliary, realize that the DCN of point-to-multipoint and multiple spot and Mulit-point Connection is certainly logical with this, particularly realize the access network equipment automatic wire charging management of complex scene, so that equipment is disposed at the scene, effectively shorten equipment on-line time, simple and fast, so as to improve operating efficiency.

Description

The DCN of point-to-multipoint and multiple spot and Mulit-point Connection is from circulation method

Technical field

The present invention relates to DCN（Data Communicat1n Network）Technical field, more particularly to a kind of point-to-multipoint And the DCN of multiple spot and Mulit-point Connection is from circulation method.

Background technology

Present IP RAN DCN can only be realized from logical scheme by the point to point network basis of ospf protocol, when in reality Border occur in using point-to-multipoint or it is double it is up and how up in the case of, due to the limitation of ospf protocol point-to-point interface, It is caused to be used under point-to-multipoint and double up network environments.

Simple point-to-point connection uses ospf protocol mechanism, and upper electricity acquiescence creates DCN ospf process and P2P interfaces, borrowed DCN interface IP are created with LOOKBACK mouths IP, and by extending OSPF LSA TYPE 10, in backbone area transmission and exchange All-router facility information in region, reached the standard grade flow so as to complete the equipment of simple point-to-point docking.But in point-to-multipoint Or DCN can not be realized quickly from logical in double up utilization scenes, the particularly access network equipment automatic wire charging of complex scene Management, field adjustable is more complicated with configuration service, and not only required time is longer, and workload is larger, and operating efficiency is relatively low, on The line time is grown.

The content of the invention

Technical problem solved by the invention is to provide a kind of point-to-multipoint and multiple spot and the DCN of Mulit-point Connection is square from leading to Method, to solve the shortcomings that in above-mentioned background technology.

Technical problem solved by the invention is realized using following technical scheme：

The DCN of point-to-multipoint and multiple spot and Mulit-point Connection extends DCN P2P logic interfacings under ospf protocol, made from circulation method Support to handle multiple neighbor informations simultaneously on same P2P interfaces, and increase LLDP auxiliary, point-to-multipoint and multiple spot are realized with this DCN with Mulit-point Connection comprises the following steps that from leading to：

1）The point-to-multipoint networking of DCN P2P logic interfacings, a neighbours are established in current logic interfacing, there is new neighbour Occupy and add, old neighbours do not delete, and two neighbours exist in P2P logic interfacings simultaneously, safeguard two neighbor tables, to be updated to exchange that After this LSA TYPE10 and calculating route, DCN facility information tables are produced；

2）The double-ascending network of DCN P2P logic interfacings, according to the OSPF relay protective scheme interface indexs each received, safeguard respective Neighbor table, identical LSA TYPE10 information is exchanged, because purpose is unanimously interface difference therefore form equal-cost route information, together When also produce and safeguard DCN facility information tables；For distinct interface but same neighbours are come from, ARP can only learn to one Bar neighbor information, will cause to relearn ARP and cause TELNET disconnectings for a period of time when Link State sends and changed, and draw Enter LLDP auxiliary, LLDP is handed down to ARP modules according to the neighbor information learnt, preservation neighbor information table, so as to break Ensure that PING and the TELNET connection of DCN equipment rooms will not be interrupted during one connection of one connection or increase.

Beneficial effect：The present invention extends DCN P2P logic interfacings under ospf protocol, makes on same P2P interfaces simultaneously Support to handle multiple neighbor informations, and increase LLDP auxiliary, with this realize the DCN of point-to-multipoint and multiple spot and Mulit-point Connection from It is logical, particularly realize the access network equipment automatic wire charging management of complex scene so that equipment is disposed at the scene, effectively shortens equipment On-line time, simple and fast, so as to improve operating efficiency.

Brief description of the drawings

Fig. 1 is the point-to-multipoint networking schematic diagram in presently preferred embodiments of the present invention.

Fig. 2 is the double-ascending network schematic diagram in presently preferred embodiments of the present invention.

Fig. 3 is the OSPF DCN message exchange flow figures in presently preferred embodiments of the present invention.

Embodiment

In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Conjunction is specifically illustrating, and the present invention is expanded on further.

The DCN of point-to-multipoint and multiple spot and Mulit-point Connection is from circulation method, and extension DCN P2P logics connect under ospf protocol Mouthful, make on same P2P interfaces while support to handle multiple neighbor informations, and increase LLDP auxiliary, point-to-multipoint is realized with this And the DCN of multiple spot and Mulit-point Connection comprises the following steps that from leading to：

1）The point-to-multipoint networking of DCN P2P logic interfacings, a neighbours are established in current logic interfacing, there is new neighbour Occupy and add, old neighbours do not delete, but two neighbours exist simultaneously in P2P logic interfacings, safeguard two neighbor tables, renewal Exchange mutual LSA TYPE10 and calculate route, while DCN facility information tables are produced according to TYPE10；

As shown in figure 1, the DCN interfaces 1 of device A first receive equipment B DCN interface 1HELLO messages, the DCN interfaces 1 of device A Also HELLO messages are sent to equipment B DCN interfaces 1, then establishes DCN interfaces 1IP with equipment B in the DCN interfaces 1 of device A Neighbours, same equipment B DCN interfaces 1 are also established each to be opened with the DCN interfaces 1IP of device A neighbours, device A with equipment B Neighbours' dead timers are moved, now the DCN interfaces 1 of device A receive equipment C DCN interface 1HELLO messages again, keep device A DCN interfaces 1 on equipment B neighbor informations it is constant, while DCN interfaces 1 from the DCN interfaces 1 of device A to equipment C send HELLO Message, device A establish mutual neighbor information, and each self-starting neighbours dead timers respectively with equipment C, treat that neighbor information is handed over After the completion of changing, then the information such as LSDB, TYPE10 are exchanged with each other, produce DCN facility information tables after completing router-level topology, exchange flow As shown in Figure 3；

2）DCN P2P logic interfacings it is double up（Two interfaces connect another equipment simultaneously）Networking, according to what is each received OSPF relay protective scheme interface indexs, respective neighbor table is safeguarded, identical LSA TYPE10 information is exchanged, because purpose is unanimously Interface is different therefore forms equal-cost route information, while also produces and safeguard DCN facility information tables；For distinct interface but come from In same neighbours, ARP can only learn to a neighbor information, will cause to relearn ARP when Link State sends and changed So that TELNET disconnectings are for a period of time, LLDP auxiliary is introduced, LLDP preserves neighbor information according to the neighbor information learnt Table, and be handed down to ARP modules, so as to break the PING that ensures DCN equipment rooms during one connection of a connection or increase and TELNET connections will not be interrupted；

As shown in Figure 2, neighbours establish the DCN of process and device A between the DCN interfaces 1 of device A and equipment B DCN interfaces 1 The process and step 1 of neighbours is established between the interfaces of P2P 2 and the interfaces of equipment BDCN P2P 2）It is identical, be a difference in that device A with After equipment B exchanges the information of LSDB, TYPE 10, because device A to equipment B there are two paths, equal-cost route is formed, is set in turn Standby B is the same to device A, while also produces and safeguard DCN facility information tables.

The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims

1. the DCN of point-to-multipoint and multiple spot and Mulit-point Connection is from circulation method, it is characterised in that extends DCN under ospf protocol P2P logic interfacings, make on same P2P interfaces while support to handle multiple neighbor informations, and increase LLDP auxiliary, realized with this The DCN of point-to-multipoint and multiple spot and Mulit-point Connection comprises the following steps that from leading to：

2）The double-ascending network of DCN P2P logic interfacings, according to the OSPF relay protective scheme interface indexs each received, safeguard respective Neighbor table, identical LSA TYPE10 information is exchanged, after forming equal-cost route information, produce DCN facility information tables；For difference Interface but same neighbours are come from, ARP can only learn to a neighbor information, introduce LLDP auxiliary, LLDP is according to study The neighbor information arrived, neighbor information table is preserved, and be handed down to ARP modules, so as to break one company of a connection or increase Ensure that PING and the TELNET connection of DCN equipment rooms will not be interrupted when connecing.

2. the DCN of point-to-multipoint according to claim 1 and multiple spot and Mulit-point Connection is from circulation method, it is characterised in that step Rapid 1）In, the Establishing process that two neighbours exist in P2P logic interfacings simultaneously is as follows：

1. the DCN interfaces 1 of device A receive equipment B DCN interface 1HELLO messages, the DCN interfaces 1 of device A are also to equipment B's DCN interfaces 1 send HELLO messages；Established in the DCN interfaces 1 of device A with equipment B DCN interfaces 1IP neighbours, same equipment B DCN interfaces 1 are also established with the DCN interfaces 1IP of device A neighbours, device A self-starting neighbours dead timings each with equipment B Device；

2. the DCN interfaces 1 of device A receive equipment C DCN interface 1HELLO messages again, setting on the DCN interfaces 1 of device A is kept Standby B neighbor informations are constant, while the DCN interfaces 1 of device A send HELLO messages, device A and equipment to equipment C DCN interfaces 1 C establishes mutual neighbor information, and each self-starting neighbours dead timers respectively.