CN105162662B

CN105162662B - A kind of method of EOC terminal independence support loop detection

Info

Publication number: CN105162662B
Application number: CN201510616180.0A
Authority: CN
Inventors: 王武林
Original assignee: Chengdu Guangda New Network Technology Co Ltd
Current assignee: Chengdu Guangda New Network Technology Co Ltd
Priority date: 2015-09-25
Filing date: 2015-09-25
Publication date: 2018-11-27
Anticipated expiration: 2035-09-25
Also published as: CN105162662A

Abstract

The present invention relates to the EOC equipment control field in data communication field, especially a kind of method of EOC terminal independence support loop detection.The present invention is in view of the problems of the existing technology, a kind of method of EOC terminal independence support loop detection is provided, the loop detection module of EOC terminal realizes loop detection and processing loop ports, prevent that broadcast storm influences other ports and network, and proactive notification local side, the loop information detected.In the present invention when loop detection module receive oneself transmission loop detection broadcasting packet, then by the status indication of the terminal device port be loop circuit state, and by management message to local side EOC report generate loop information；When loop detection module detects that the loop circuit state of the port is no loop, and the state of last detection is loop circuit state, then is acyclic line state by the status indication for changing terminal device port, and reports information that loop releases to local side EOC by management message.

Description

A kind of method of EOC terminal independence support loop detection

Technical field

The present invention relates to the EOC in data communication field（Ethernet over Coax）Equipment control field, especially A kind of method of EOC terminal independence support loop detection.

Background technique

Under EOC network environment（Such as Fig. 1）It is shown, more EOC terminals, which can be connected, under a usual EOC local-side device sets It is standby.And EOC terminal is managed by EOC local side, when loop occurs in the network below EOC terminal, above EOC local side Terminal loop detection function detect the loop of terminal, but the not support loop of some old local sides in practical EOC network Detection function when EOC terminal being caused loop occur, cannot find in time, generate a large amount of broadcast storm, influence whole network. Even if some newer local sides support the loop detection function of terminals, but when due to loop occur, can generate a large amount of broadcast immediately Storm, a large amount of upstream broadcast storm may result in local side and become to the management message loss of terminal or management message time delay Greatly, the loop below terminal cannot be detected in time, and influences the management to terminal.Some EOC local sides are in order to more The fast loop for detecting terminal, and then influence of the terminal loop to network is faster eliminated, it uses and increases poll terminal loop The method of the frequency of state, this method make to manage message increase in normal network environment, influence the forwarding of data message Energy.Therefore in order to solve above-mentioned these problems, the independent loop detection of face realization at the terminal is needed, i.e., is participated in no local side In the case where can also detect the port of loop and prevent storm.

Summary of the invention

The technical problem to be solved by the present invention is to：In view of the problems of the existing technology, it is independent to provide a kind of EOC terminal The method of support loop detection, the loop detection module of EOC terminal are realized loop detection and processing loop ports, are prevented wide Broadcast other ports of storm impact and network, and proactive notification local side, the loop information detected.

The technical solution adopted by the present invention is as follows：

A kind of method of EOC terminal independence support loop detection includes：

Step 1：Terminal intermediate ring road detection module periodically sends loop detection broadcasting packet to each port, and detection is eventually The network of end equipment whether there is loop；

Step 2：Loop detection module persistently receives the loop detection broadcasting packet of each port, when loop detection module is received The status indication of the terminal device port is then loop circuit state, and passes through pipe by the loop detection broadcasting packet sent to oneself It manages message and reports the information for generating loop to local side EOC；

Step 3：When loop detection module detects that the loop circuit state of the port is no loop, and the shape of last detection State is loop circuit state, then is acyclic line state by the status indication of the terminal device port, and by managing message to local side EOC Report the information that loop releases.

It further, further include when the status indication of terminal device port is loop circuit state in the step 2, EOC is whole Understand the forwarding of close port immediately, cancellation loop in end.

Further, the management message format is：Heading+Status Type+corresponding port numbers are managed, wherein different EOC equipment corresponds to different management headings；In Status Type, 1 represents generation loop, and 2 represent port loop releasing；Different ends The corresponding different port numbers of mouth, port numbers are since 1.

In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：

1）Due to EOC terminal loop detection module after detecting loop can close port immediately forwarding, eliminate ring Road, therefore influence of the broadcast storm to network is reduced, the especially network of terminal above section influences.

2）Since EOC terminal can report loop automatically and release the state of loop, it is straight-through that local side can not have to one The loop circuit state of management message polling terminal is crossed, a large amount of management message is reduced, due to the management message on EOC local side to terminal Coaxial channel is shared with data message, therefore the reduction for managing message is conducive to improve the forwarding performance of data message.

3）Loop detection module is realized by software program, without increasing hardware cost on hardware, and it is simple and convenient Solve the problems, such as it is of the existing technology.

Detailed description of the invention

Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：

Fig. 1 is the method schematic diagram of EOC terminal independence support loop detection.

Fig. 2 is management message format.

Specific embodiment

All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive Feature and（Or）Other than step, it can combine in any way.

This specification（Including any accessory claim, abstract and attached drawing）Disclosed in any feature, except non-specifically chatting It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only It is an example in a series of equivalent or similar characteristics.

1）Whether EOC terminal detection port there is loop

Terminal device by periodically to each port send loop detection broadcasting packet, detecting terminal device port it Under network whether there is loop.

Terminal device continues to receive loop detection broadcasting packet in each port, if receiving the loop detection of oneself transmission The loop circuit state of the port is then labeled as loop circuit state by broadcasting packet.

The exchange chip used according to terminal is different, and above-mentioned operation can be the software completion in exchange chip, software Periodic queries loop flag state is only needed, if exchange chip not support loop detection function, aforesaid operations can also be by Software is completed.

2）EOC terminal detects the processing after loop

EOC terminal periodically detects the loop circuit state of port, if the loop circuit state of the port is loop, by the end The spanning-tree state of mouth is set to blocking.And the loop information that message is generated to local side report is managed to by indicate. It is as shown in Figure 2 that Indicate manages message format.

If detecting that the loop circuit state of the port is no loop, and the state of last detection is loop, then should The spanning-tree state of port is set to forwarding.And the letter that message is released to local side report loop is managed to by indicate Breath.

As shown in Fig. 2, operating loop detection module on the EOC chip of EOC terminal, loop detection module is managed by MDIO Interface poll port loop state.

After detecting port loop, the spanning-tree state of the port of loop is set to blocking state immediately, and to EOC local side sends management message, notifies EOC local side.

When detecting that port do not have a loop, and when last state is loop circuit state, then restore the forwarding of port, by this The spanning-tree state of port is set to forwarding state.And to by managing information of the message to local side report loop releasing.

The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed New feature or any new combination, and disclose any new method or process the step of or any new combination.

Claims

1. a kind of method of EOC terminal independence support loop detection, it is characterised in that including：

Step 1：Terminal intermediate ring road detection module periodically sends loop detection broadcasting packet to each port, and detecting terminal is set Standby network whether there is loop；

Step 2：Loop detection module persistently receives the loop detection broadcasting packet of each port, when loop detection module receives certainly The status indication of the terminal device port is then loop circuit state, and passes through management report by the loop detection broadcasting packet that oneself sends Text reports the information for generating loop to local side EOC；

Step 3：When loop detection module detects that the loop circuit state of the port is no loop, and the state of last detection is The status indication of the terminal device port is then acyclic line state, and is reported by management message to local side EOC by loop circuit state The information that loop releases；

It further include when the status indication of terminal device port is loop circuit state in the step 2, EOC terminal can shutdown side immediately The forwarding of mouth, cancellation loop；

The management message format is：Heading+Status Type+corresponding port numbers are managed, wherein difference EOC equipment is corresponding not Same management heading；In Status Type, 1 represents generation loop, and 2 represent port loop releasing；Different port corresponds to different Port numbers, port numbers are since 1.