CN1859220A

Movatterモバイル変換

Info

Publication number: CN1859220A
Application number: CN 200610083167
Authority: CN
Inventors: 宁军; 刘建锋
Original assignee: Hangzhou Huawei 3Com Technology Co Ltd
Current assignee: Hewlett Packard Enterprise Development LP
Priority date: 2006-06-07
Filing date: 2006-06-07
Publication date: 2006-11-08
Anticipated expiration: 2026-06-07
Also published as: CN100444558C

Abstract

The present invention discloses a home site backed method. Said method includes standby site monitoring ether net automatic protection system (EAPS) loop forming loop or not, if it is then standby site blocking one own port, and transmitting refreshing media control (MAC) address list message to other slave site. The present invention avoids broadcast storm occurrence in EAPS loop, greatly raising EAPS loop reliability.

Description

A kind of method and a kind of backup site that home site is backed up

Technical field

The present invention relates to Ethernet automatic protective system (EAPS) technology, particularly relate to a kind of method that on the EAPS ring, home site is backed up and a kind of backup site.

Background technology

The EAPS ring is by a home site and a plurality of loop network structure of forming from website.Fig. 1 is the structural representation of EAPS ring.Referring to Fig. 1, when EAPS ring operate as normal, the spare physical port of home site obstruction self side, guarantee when service data transmission, the EAPS ring is a chain, rather than a ring-type, thereby avoid unknown unicast and the broadcast (sites) in turn of broadcasting under loop network to take place, avoid occurring broadcast storm.

At present, in order to guarantee to break down or during fault recovery at home site, the EAPS ring can operate as normal, has proposed the method for utilizing backup site that home site is backed up.Fig. 2 is the flow chart that prior art backs up at home site.Referring to Fig. 1 and Fig. 2, in the prior art, in advance EAPS ring backup site is set from website, the process that backs up at home site may further comprise the steps:

Step 201: when the looped network operate as normal, if home site is in normally, home site then periodically sends the HELLO detect-message on the both direction of EAPS ring; If home site breaks down, home site stops to send the HELLO detect-message.

Here and the looped network operate as normal of the following stated be meant: on the EAPS ring, respectively being in normally from website and link except that home site and backup site do not broken down.

Step 202: backup site is monitored in setting-up time length, whether receives the HELLO detect-message that home site is sent, if, determine that then home site is normal, execution instep 203, otherwise determine that home site breaks down execution instep 204.

Step 203: self is set to stand-by state backup site, returnsstep 202.

Step 204: backup site self is set to the main state of use, sends on the EAPS ring other from website with carrying the home site fault notification message of putting switching time.

Step 205: other on backup site and the EAPS ring arrives when putting switching time in timing from website, refreshes medium access control (MAC) address table that is used for service data transmission.

Step 206: backup site periodically sends the HELLO detect-message on the EAPS ring, and monitors whether to receive the HELLO detect-message that self sends, if, then definite home site fault is recovered, execution instep 207, otherwise, determine that the home site fault do not recover, returnstep 206.

Here, the pre-configured home site of prior art is in the moment of fault recovery, do not block the spare physical port of self example, and, other website on the EAPS ring does not send and recovers switching messages, to guarantee unifying triggering following respectively refreshes mac address table from website process by backup site.

Step 207: the home site fault recovery message that backup site will be carried some switching time is sent to other respectively from website and home site.

Step 208: arrive when putting switching time in timing, home site blocks the standby port of self, and other on backup site and the EAPS ring respectively refreshes mac address table from website.

By above-mentioned flow process shown in Figure 2 as can be seen, prior art has following shortcoming:

1, encircle for EAPS, a critical function of home site is avoided the EAPS annular circlewise exactly, thereby avoid the generation of broadcast storm, and in the prior art, whether backup site can only monitor home site and break down or fault recovery, and take the process that refreshes mac address table of being correlated with, and can't and avoid the processing circlewise of EAPS annular to back up at the home site monitoring, therefore, when home site can't be carried out monitoring and avoid circlewise the processing of EAPS annular, because backup site also can't realize the back-up processing of being correlated with, therefore, then can't avoid the EAPS annular circlewise, thereby occur unknown unicast and the broadcast (sites) in turn of broadcasting under loop network probably, thereby cause broadcast storm.

2, in the prior art, the main website of using just often must send the HELLO detect-message on both direction, and the agreement regulation is that the master sends the HELLO detect-message in one direction with website; And, prior art need dispose home site when fault recovery, the standby port that does not block self side, other website on the EAPS ring does not send and recovers switching messages, and the agreement regulation is that home site is when fault recovery, the standby port that blocks self side, and other website on the EAPS ring sends and recovers switching messages.This shows that prior art has been carried out too much modification to home site, increased the realization difficulty of home site.

3, when the looped network operate as normal, when home site breaks down, the home site fault notification message that backup site needs to carry some switching time is sent to other website on the EAPS ring, make backup site and other from website arriving when putting switching time, refresh the mac address table that is used for service data transmission.Yet, because when the home site operate as normal, the standby port of one side blocks, and the transmission of business datum can not passed through home site, therefore, even home site breaks down, transmission to business datum can not impact yet, and need not backup site at all and sends the home site fault notification message and refresh the process of mac address table with other website, therefore, increase operation flow meaninglessly, increased the business realizing difficulty.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of method that home site is backed up, another object of the present invention is to provide a kind of backup site,, avoid the generation of broadcast storm so that can monitor and avoid the processing circlewise of EAPS annular by backup site.

In order to achieve the above object, technical scheme of the present invention is achieved in that

A kind of method that home site is backed up, this method comprises:

Whether A, backup site monitoring Ethernet automatic protective system EAPS ring forms ring-type, if, execution in step B then;

B, backup site block the port of self, and the message that will refresh medium access control MAC address table is sent to other from website.

In steps A; the step whether described backup site monitoring Ethernet automatic protective system EAPS ring forms ring-type comprises: backup site sends the HELLO detect-message on the EAPS ring; and whether monitoring can receive the HELLO detect-message that self sends in a setting-up time length; if then determine the EAPS annular circlewise.

, further comprise after sending the HELLO detect-message on the EAPS ring in described backup site: whether the backup site monitoring can receive the message that home site is sent, if, then self is switched to stand-by state, finish current flow process.

When backup site monitors the home site fault, carry out described steps A.

Described backup site monitors the home site fault and comprises: whether the backup site monitoring can receive ring network fault is recovered message, if, then monitor in setting-up time length, whether to receive the message that home site is sent,, then determine the home site fault if do not receive.

Before whether the backup site monitoring can receive ring network fault recovery message, further comprise: whether backup site monitoring looped network and home site all break down, if then the fault warning trap information with home site fault and ring network fault offers administrative staff.

The step whether described backup site monitoring looped network and home site all break down comprises:

Whether the monitoring of A01, backup site receives the ring network fault state message, if, execution in step A02 then;

Whether A02, backup site monitoring receive the message that home site is sent in setting-up time length, if do not receive, determine that then looped network and home site all break down.

The message that described home site is sent is: HELLO detect-message or refresh the message of mac address table.

Described backup site monitors the home site fault and comprises: at looped network just often, backup site is monitored in setting-up time length, whether receives the HELLO detect-message that home site is sent, if do not receive, then determines the home site fault.

A kind of backup site, this backup site is used to monitor EAPS ring and whether forms ring-type, monitor form ring-type after, block the port of self, and the message that will refresh mac address table is sent to other from website.

This backup site is used on the EAPS ring sending the HELLO detect-message, and whether monitoring receive the HELLO supervisory messages that self sends in setting-up time length, monitor can receive after, determine the EAPS annular circlewise.

This shows that the present invention has the following advantages:

1, in the present invention, backup site can and avoid the processing circlewise of EAPS annular to back up at the home site monitoring, that is to say, when home site can't be carried out monitoring and avoid circlewise the processing of EAPS annular, backup site can be monitored the EAPS ring and whether be formed ring-type, and take to guarantee accordingly that the EAPS ring is the processing of chain, therefore, unknown unicast and the broadcast (sites) in turn of broadcasting under loop network have been avoided, thereby avoided the generation of broadcast storm, improved the reliability of EAPS ring greatly.

2, in the present invention, at looped network just often, the master only need send the HELLO detect-message and get final product according to the regulation of agreement in one direction with website; And, at looped network just often, during the home site fault recovery, can be according to the regulation of agreement, block the spare physical port of self example, and other website on the EAPS ring sends and recovers switching messages.This shows that the present invention does not carry out any modification to home site, reduced the realization difficulty of home site.

3, when the looped network operate as normal, after home site broke down, backup site need not to send fault notification message, refreshed the meaningless process of mac address table thereby saved backup site and other from website, had simplified operation flow, had reduced the difficulty of business realizing.

Description of drawings

Fig. 1 is the structural representation of EAPS ring.

Fig. 2 is the flow chart that prior art backs up at home site.

Fig. 3 is the flow chart that when looped network changes home site is backed up in embodiments of the present invention.

Fig. 4 is the flow chart that just often home site is backed up at looped network in embodiments of the present invention.

Embodiment

Core concept of the present invention is: whether backup site monitoring Ethernet automatic protective system EAPS ring forms ring-type, if backup site is blocked the port of self, and the message that will refresh medium access control MAC address table is sent to other from website.

Wherein, backup site can be after monitoring the home site fault, carries out the processing whether described monitoring EAPS ring forms ring-type.

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.

Fig. 3 is the flow chart that when looped network changes home site is backed up in embodiments of the present invention.Referring to Fig. 1 and Fig. 3, in the present invention, when looped network changes, promptly except that home site and backup site from website or link occurs fault and fault recovery the time, back up at home site, so that whether form ring-type, and guarantee that the EAPS ring may further comprise the steps for the process of chain by backup site monitoring EAPS ring:

Step 301: the first timer of home site state when in backup site, being provided for detecting ring network fault in advance, and the second timer of home site state when being used to detect the looped network fault recovery, and the time-out time of this first timer and second timer is set.

Step 302: whether the backup site monitoring receives the ring network fault state message, if, determine that then looped network breaks down, execution instep 303, otherwise, determine that looped network does not break down, and returnsstep 302.

Here, when looped network breaks down, that is to say, except that home site and backup site from website or link occurs fault the time, that breaks down can be at EAPS ring transmission ring network fault state message from website from the adjacent of website or link, therefore, when looped network broke down, backup site can receive the ring network fault state message.

Step 303: backup site starts the first timer that sets in advance.

Step 304: backup site is monitored before first timer is overtime, whether receives the message that refreshes mac address table that home site is sent, if, determine that then home site is normal, execution instep 305, otherwise, determine that home site breaks down, execution in step 306.

Here, according to agreement, if home site still is in normally, then can be according to the ring network fault state message, produce the message refresh mac address table immediately, and on the both direction of EAPS ring, send this and refresh the message of mac address table, like this, at home site just often, backup site then can receive the message that refreshes mac address table before first timer is overtime; If home site breaks down, so, this home site then can't produce and send the message that refreshes mac address table, and like this, backup site then can't receive the message that refreshes mac address table before first timer is overtime.

Step 305: backup site is the first timer zero clearing, directly execution instep 307.

Step 306: backup site is the first timer zero clearing, and the trap information of home site fault and ring network fault is offered administrative staff, and self is set to mainly use state, and periodicity sends the HELLO detect-message on the EAPS ring.

Here, backup site is after having sent a HELLO detect-message, whether judgement receives the HELLO detect-message that self sends in a setting-up time length, if, then determine the EAPS annular circlewise, then directly carry out followingstep 312, otherwise, determine that the EAPS ring does not form ring-type, continues to send the HELLO detect-message.Certainly, backup site also can judge whether the EAPS ring forms ring-type by the process ofstep 307 as follows tostep 311.

Step 307: whether backup site monitoring can receive the message that ring network fault is recovered, if, determine that then ring network fault recovers, execution in step 308, otherwise, determine that ring network fault do not recover, returnstep 307.

Here, when ring network fault is recovered, that is to say, except that home site and backup site from the fault recovery of website or link the time, that breaks down can be at the message of EAPS ring transmission ring network fault recovery from website from the adjacent of the website or the link that breaks down, therefore, when ring network fault was recovered, backup site can receive the message that ring network fault is recovered.

Step 308: backup site starts the second timer that sets in advance, whether monitoring can receive the message that refreshes mac address table that home site is sent before second timer is overtime, if, then definite home site fault is recovered, execution instep 309, otherwise, determine that home site is in malfunction, execution instep 310.

Here, if home site is in normally, then can be according to the message of ring network fault recovery, produce the message that refreshes mac address table immediately, and on the both direction of EAPS ring, send this and refresh the message of mac address table, like this, at home site just often, backup site then can receive the message that refreshes mac address table immediately; If home site breaks down, so, this home site then can't produce and send the message that refreshes mac address table, and like this, backup site then can't receive the message that refreshes mac address table.

Therefore, in this step, before second timer is overtime,, can determine that then home site is in normal condition if backup site can receive the message that refreshes mac address table that home site is sent.Refresh mac address table message and avoid the EAPS ring to become the processing of ring-type because home site can initiatively be carried out to send, that is to say that the relevant treatment that backup site need not to switch is promptly carried out follow-upstep 309 and got final product;

If backup site does not receive the message that refreshes mac address table that home site is sent, can determine that home site is in malfunction, home site can't be carried out to send and refresh mac address table message, can't avoid the EAPS ring to become ring-type, therefore, the relevant treatment that must be switched by backup site is initiatively carried out to send and is refreshed mac address table message, and avoid the EAPS ring to become ring-type, i.e. execution instep 310 and subsequent step thereof.

Step 309: self is set to stand-by state backup site, and with the second timer zero clearing, finishes current flow process.

Step 310: backup site sends the HELLO detect-message immediately with the second timer zero clearing on the EAPS ring.

Carry out this step, home site still is in fault when recovering owing to ring network fault, and home site can't be carried out the processing of avoiding the EAPS ring to become ring-type, and therefore, backup site initiatively sends the HELLO detect-message on the EAPS ring, and whether detection EAPS ring can become ring-type.

Step 311: whether the backup site monitoring can receive the HELLO detect-message that self sends in setting-up time length, if then execution instep 312, otherwise, determine that the EAPS ring does not form ring-type, finishes current flow process.

Step 312: backup site is determined the EAPS annular circlewise, blocks the port of self, and the mac address table message that refreshes that will carry switching time point is sent on the EAPS ring other from website.

Step 313: backup site and other arrive when putting the switching time of refreshing the mac address table message in timing from website, refresh the mac address table that is used to carry out business data transmission.

In above-mentionedsteps 304 and step 308, backup site is whether to receive the message that refreshes mac address table that home site sends by monitoring to monitor whether operate as normal of current home site, in the business realizing of reality, if home site operate as normal, this home site can periodically send the HELLO detect-message, therefore, in above-mentionedsteps 304 and step 308, whether backup site also can receive the HELLO detect-message that home site is sent by monitoring in setting-up time length, monitor whether operate as normal of current home site.

So far, by above-mentioned process shown in Figure 3, when backup site then can be implemented in ring network fault and fault recovery, at the main processing of backing up with website.

Fig. 4 is the flow chart that just often home site is backed up at looped network in embodiments of the present invention.Referring to Fig. 1 and Fig. 4, in the present invention, at looped network just often, promptly except that home site and backup site from website and link operate as normal the time, back up at home site, so that whether form ring-type, and guarantee that the EAPS ring may further comprise the steps for the process of chain by backup site monitoring EAPS ring:

Step 401: when the looped network operate as normal, if home site is in normally, home site then periodically sends the HELLO detect-message on the EAPS ring; If home site breaks down, home site then stops to send the HELLO detect-message.

For consistent with the home site function of agreement regulation, avoid home site is made amendment, in this step, when home site sends the HELLO detect-message, only on a direction of EAPS ring, send.

Step 402: backup site is monitored in setting-up time length, whether receives the HELLO detect-message that home site is sent, if, determine that then home site is normal, execution instep 403, otherwise, determine that home site breaks down, execution instep 404.

Step 403: self is set to stand-by state backup site, and restarts timing device, returnsstep 402.

Step 404: backup site self is set to the master and uses state, periodically sends the HELLO detect-message on the EAPS ring, and provides main Trap information with the website fault to administrative staff.

Here, backup site is after definite home site breaks down, the Trap information of home site fault is provided to administrative staff immediately, can make administrative staff in time obtain the information of home site fault, and in time take corresponding fault recovery to handle, thereby avoid follow-up other during from node or link failure, the problem of multiple spot fault appears.

When the looped network operate as normal, because when the home site operate as normal, the standby port of one side blocks, the transmission of business datum can not passed through home site, therefore, even home site breaks down, can not impact the transmission of business datum yet, need not in the prior art to send the home site fault notification message and to refresh the process of mac address table with other website by backup site at all.Therefore, in this step, after backup site determines that home site breaks down, need not to carry out the home site fault notification message that to carry some switching time and be sent to other process from website.

Step 405: backup site is monitored in a setting-up time length, whether receives the HELLO detect-message that self sends, if then execution instep 406, otherwise, returnstep 405.

Here, if the home site fault recovery, promptly operating state becomes normal state from fault case, and so, home site is sent to backup site with this HELLO detect-message after receiving the HELLO detect-message.

Need to prove, need not do any change, that is to say the configuration of home site, need not configuration home site of the prior art when fault recovery, the spare physical port that does not block self side, and other website on the EAPS ring sends and recovers switching messages.Like this, in thisstep 405, if home site fault recovery, according to agreement, the spare physical port of home site obstruction self side, and other website on the EAPS ring sends and recovers switching messages, make other refresh mac address table, periodically on the EAPS ring, send the HELLO detect-message then from node.

Step 406: backup site is determined the EAPS annular circlewise, blocks the port of self, and transmission refreshes mac address table message on the EAPS ring.

Step 407: backup site is determined the home site fault recovery when receiving the HELLO detect-message that home site sends, and decontrols the port that is blocked.

Here, because backup site can receive the HELLO detect-message that self sends, therefore, may there be the danger that forms ring-type in the EAPS ring, and therefore, backup site is at first blocked the port of self.And if backup site can receive the HELLO detect-message that website is sent, then represent the home site fault recovery after, blocked the standby port of oneself, therefore, backup site then can be decontroled the port that self blocks.

In above-mentioned Fig. 3 and process shown in Figure 4, be set to main with state and after periodically sending the HELLO detect-message on the EAPS ring in backup site self, whether the backup site monitoring can receive the message of representing this home site fault recovery that home site is sent, such as, HELLO detect-message, refresh mac address table message or fault recovery notice etc., if, backup site then stops to send the HELLO detect-message immediately, stop to monitor EAPS and encircle the whether processing of Cheng Huan, and correspondingly self is switched to stand-by state.

In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1, a kind of method that home site is backed up is characterized in that, this method comprises:

2, method according to claim 1; it is characterized in that; in steps A; described backup site monitoring comprises with the step whether big network automatic protection EAPS of system ring forms ring-type: backup site sends the HELLO detect-message on the EAPS ring; and whether monitoring can receive the HELLO detect-message that self sends in a setting-up time length; if then determine the EAPS annular circlewise.

3, method according to claim 2 is characterized in that, in described backup site after sending the HELLO detect-message on the EAPS ring, further comprise: whether the backup site monitoring can receive the message that home site is sent, if, then self is switched to stand-by state, finish current flow process.

4, method according to claim 1 is characterized in that, when backup site monitors the home site fault, carries out described steps A.

5, method according to claim 4, it is characterized in that, described backup site monitors the home site fault and comprises: whether the backup site monitoring can receive ring network fault is recovered message, if, then monitor and in setting-up time length, whether receive the message that home site is sent, if do not receive, then determine the home site fault.

6, method according to claim 5, it is characterized in that, before whether the backup site monitoring can receive ring network fault recovery message, further comprise: whether backup site monitoring looped network and home site all break down, if then the fault warning trap information with home site fault and ring network fault offers administrative staff.

7, method according to claim 6 is characterized in that, the step whether described backup site monitoring looped network and home site all break down comprises:

8, according to claim 3,5 or 7 described methods, it is characterized in that the message that described home site is sent is: HELLO detect-message or refresh the message of mac address table.

9, method according to claim 4, it is characterized in that, described backup site monitors the home site fault and comprises: at looped network just often, the backup site monitoring is in setting-up time length, whether receive the HELLO detect-message that home site is sent, if do not receive, then determine the home site fault.

10, a kind of backup site is characterized in that, this backup site is used to monitor EAPS ring and whether forms ring-type, monitor form ring-type after, block the port of self, and the message that will refresh mac address table is sent to other from website.

11, backup site according to claim 10, it is characterized in that, this backup site is used for sending the HELLO detect-message on the EAPS ring, and whether monitoring receives the HELLO supervisory messages that self sends in setting-up time length, monitor can receive after, determine the EAPS annular circlewise.