CN101155062B

CN101155062B - Method, device and system for settling exception of signaling network

Info

Publication number: CN101155062B
Application number: CN200610141778A
Authority: CN
Inventors: 李育斌; 李云峰; 李春生
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-09-30
Filing date: 2006-09-30
Publication date: 2012-10-03
Anticipated expiration: 2026-09-30
Also published as: CN101155062A

Abstract

The invention provides a method, device and system for solving abnormity of signaling network. After the signal switch point receives the information for prohibiting transferring signal, the signal switch point does not process or discards the received information in defined time to make the information oscillation between the signal switch points breaking, the abnormity of signal network due to information oscillation is solved. The said invention is automatically accomplished by device to reduce the factitious participation and the safety of signal network is increased.

Description

A kind of method, Apparatus and system that solves exception of signaling network

Technical field

The present invention relates to the communication network technical field, relate in particular to a kind of method, Apparatus and system that solves exception of signaling network.

Background technology

In signaling network management message, routing management message comprises to be forbidden transmitting signal (TFP) message and allows to transmit signal (TFA) message;

Wherein, TFP message and TFA message are all carried following three parameters, promptly

Original Signaling Point (Originating Point Code), expression from which signalling point is sent;

Destination signaling point (Destination Point Code), which signalling point is expression message should be received by;

Destination (about PC): in the TFP message expression from the OPC of message to this inaccessible; Expression can be visited to this point from the OPC of message in the TFA message;

According to the Q.704 requirement of agreement; The signalling point or the Signalling Transfer Point that receive TFP and TFA message are handled as follows: according to Original Signaling Point that carries in the message and destination; Uniquely confirm the route from this to the destination, the walking along the street of going forward side by side is by the refreshing of routing table, for TFP message; If there is above-mentioned definite unique route in the route routing table, then need route be deleted from route routing table; For TFA message, in route routing table, increase above-mentioned definite unique route.

According to the definition in Q.704 agreement or the ANSI agreement, TFP and TFA have following four principles:

As shown in Figure 1, Signaling Transfer Point Y can with the direct route of signalling point X, also can be through the link group alternate route between the STP Z, then,

First principle: when the signaling message that will go to SP X as STP Y is transmitted by STP Z, and this moment, STP Y did not use STP Z to transmit this signaling message, so STP Y sends TFP message to STP Z.

Second principle: when STP Y stops to transmit when going to the signaling of SP X via STP Z, STP Y sends TFA message to STP Z.

As shown in Figure 2, STP Y and the direct route of SP X, STP Y can also be connected with other adjacent signaling points, then,

The 3rd principle: when STP Y identifies can not signaling message be sent to SP X the time, to all adjacent signaling points that can insert broadcasting TFP message.

The 4th principle: when STP Y identifies can signaling message be sent to SP X the time, to all adjacent signaling points that can insert broadcasting TFA message.

According to the first above-mentioned principle and second principle, under networking mode as shown in Figure 3, there are TFP, TFA message oscillation problem under certain condition, specific as follows:

Be three routes of STP Y configuration, be respectively to SP A:

Route 1: through the direct route between STP Y and the SP A, priority is the highest;

Route 2: through and STP Z between the alternate route of link group, priority is time high;

Route 3: through and STP X between the alternate route of link group, priority is minimum.

In like manner, be three routes of STP Z configuration, be respectively to SP A:

Route 1: through the direct route between STP Z and the SP A, priority is the highest;

Route 2: through and STP Y between the alternate route of link group, priority is time high;

When the direct route simultaneous faults between the direct route between SP A and the STP Y and SP A and the STP Z; STP Y and STP Z carry out refreshing of route routing table respectively; According to the setting of route priority, STP Y and STP Z can select route 2 to carry out the transmission of message;

At this moment, according to said first principle, STP Y can send TFP message to STP Z, and STP Z can send TFP message to STP Y; STP Y and STP Z are after receiving TFP message, and STP Y and STP Z start route routing process respectively, because said route 3 can be used, according to said second principle, STP Y sends TFA message to STP Z, and STP Z sends TFA message to STP Y;

After STP Y and STP Z receive above-mentioned TFA message; Because the setting of route priority; The route result of routing again remains and selects route 2 to carry out message to send; Therefore can send TFP message to the opposite end each other according to the said first principle Signalling Transfer Point, like this, between STP Y and STP Z, just exist TFP, the vibration of TFA message.

In like manner, still like above-mentioned networking, STPY and STPZ still have three routes 1,2,3 to SPA, but priority is different, is specially:

STP Y has disposed three routes to SP A, is respectively:

Route 3: through and STP X between the alternate route of link group, have equal priority with route 2.

STP Z has disposed three routes to SP A, is respectively:

All under the situation of fault, STP Y uses route 3 to arrive SP A in the route between direct route, STPY and the STPZ of direct route, SP A and the STP Z of SP A and STP Y, and STP Z uses route 3 to arrive SP A equally; When the route recovery between STPY and the STPZ, STP Y and STP Z carry out refreshing of route routing table respectively, and according to the setting of route priority, STP Y can use route 2 and 3 to arrive SPA, and STP Z uses route 2 and route 3 to arrive SP A.

At this moment, for the route 2 of STP Y and STP Z, according to said first principle, STP Y and STP Z can handle as follows: STP Y sends TFP message to STP Z, and STP Z sends TFP message to STP Y;

After STP Y and STP Z were receiving TFP message, STP Y and STP Z started route routing process respectively, because said route 3 can be used, according to said second principle, STP Y sends TFA message to STP Z, and STP Z sends TFA message to STP Y;

After STP Y and STP Z receive above-mentioned TFA message; Because the setting of route priority; The route result of routing again remains and selects route 2 and route 3 to carry out message to send, when selecting route 2, still can send TFP message to the opposite end each other according to the said first principle Signalling Transfer Point; Like this, between STP Y and STP Z, just exist TFP, the vibration of TFA message.

In like manner, networking mode as shown in Figure 4, still exists TFP, TFA message oscillation problem under certain condition, and is specific as follows:

Be two routes of STP Y configuration, be respectively to SP A:

Route 1:, have equal priority with following route 2 through the direct route between STP Y and the SP A;

Route 2: through and STP Z between the alternate route of link group.

In like manner, be two routes of STP Z configuration, be respectively to SP A:

Route 1:, have equal priority with following route 2 through the direct route between STP Z and the SP A;

Route 2: through and STP Y between the alternate route of link group.

When the direct route between the direct route between SP A and the STP Y, SP A and the STP Z recovers simultaneously, be provided with according to route priority, route 2 will be participated in routing;

At this moment, according to said first principle, STP Y sends TFP message to STP Z, and STP Z also sends TFP message to STP Y simultaneously;

STP Y and STP Z are after receiving TFP message, and STP Y and STP Z start route routing process again respectively, and according to said second principle, STP Y sends TFA message to STP Z, and STP Z also sends TFA message to STP Y;

After STP Y and STP Z receive above-mentioned TFA message respectively; Because the setting of route priority; The route result of routing again remains and selects route 2 to carry out message to send; Therefore can send TFP message according to said first principle, between STP Y and STP Z, still have TFP, the vibration of TFA message like this.

Above-mentioned three application cases are not enumerated out all possible networking situation of TFP, TFA vibration; In fact; STP equipment for paired existence; When both exist routing configuration and this route that can arrive certain end office (EO) through the other side simultaneously is not when arriving the unique lowest priority route of this end office (EO), the situation that just possibly exist TFP, TFA to vibrate.

For avoiding TFP, the vibration of TFA message, normal conditions can adopt following two kinds of settling modes (these two kinds of settling modes can adopt respectively also and can adopt simultaneously):

1, STP Y and STP Z adopt distinct device respectively, break the problem that TFP, TFA message send circlewise from the time;

2, carry out the planning of route priority, make the STP equipment of paired existence or not the appearance of above-mentioned routing;

But in practical application, above-mentioned dual mode all needs artificial the participation, because the randomness that level of skill and network state change causes above-mentioned two kinds of settling modes all to be difficult to realize.

Summary of the invention

For this reason, embodiments of the invention technical problem to be solved is: a kind of method, Apparatus and system that solves exception of signaling network is provided, avoids producing the oscillation problem of TFP, TFA message, accomplished automatically by equipment, reduce artificial participation.

Embodiments of the invention provide a kind of method that solves exception of signaling network, comprising:

After Signalling Transfer Point is received and forbidden transmitting signal message, in the time that limits, do not deal with for the signal message that receives.

Embodiments of the invention also provide a kind of device that solves exception of signaling network, comprising:

Exception processing unit is used for the notice signaling transit point, and in the time that timer is set, message does not deal with or discard processing to the received signal;

Timer is used to be provided with the regular hour, receives at Signalling Transfer Point to start after forbidding transmitting signal message.

Embodiments of the invention also provide a kind of system that solves exception of signaling network, comprising:

Signalling Transfer Point is used for transmitting signaling;

Router; Have route routing processing capacity, be used to receive the signaling that Signalling Transfer Point is transmitted, the signaling of sending when Signalling Transfer Point is when forbidding transmitting signal message; Can forbid transmitting signal message according to what Signalling Transfer Point sent, this router is set to forbid transmitting signal condition;

Because in the time that limits; Signalling Transfer Point does not deal with or discard processing the signal message of being received; Make that the message vibration between the Signalling Transfer Point is broken, solved the exception of signaling network problem that causes owing to the message vibration, the described method of embodiments of the invention, Apparatus and system are accomplished by equipment automatically; Reduce artificial participation, and then the fail safe that has improved signaling network.

Description of drawings

Fig. 1 is first, second principle view described in the prior art;

Fig. 2 is the 3rd, the 4th a principle view described in the prior art;

Fig. 3 is for producing TFP, TFA message vibration networking sketch map between the STP;

Fig. 4 is for producing TFP, the TFA message another networking sketch map that vibrates between the STP;

Fig. 5 is corresponding state figure before and after the message situation between the STP after not embodiment of the present invention and the embodiment of the present invention;

Fig. 6 is the device sketch map of solution exception of signaling network according to the invention;

Fig. 7 is the system schematic of solution exception of signaling network according to the invention.

Embodiment

Below, in conjunction with accompanying drawing embodiments of the invention are described in detail.

As shown in Figure 5; Before the not described method of embodiment of the present invention embodiment, Apparatus and system; When the routing state of STP changes simultaneously in pairs (related content in referring to background technology),, there is the possibility of TFP, the vibration of TFA message between transit point STP Y and the STP Z according to said first principle and second principle; When between transit point STP Y and STP Z, producing TFP, the vibration of TFA message, detailed process is following:

Step 1, Signalling Transfer Point STP Y and STP Z send TFP message to the opposite end respectively simultaneously;

Step 2, according to second principle, after Signalling Transfer Point STP Y and STP Z receive TFP message, respectively send TFA message to the opposite end simultaneously;

Step 3, according to first principle, after Signalling Transfer Point STP Y and STP Z receive TFA message, respectively send TFP message to the opposite end simultaneously again;

Step 4, according to second principle, after Signalling Transfer Point STP Y and STP Z receive TFP message, respectively send TFA message to the opposite end simultaneously;

Go down with this Infinite Cyclic, produced TFP, the vibration of TFA message between Signalling Transfer Point STP Y and the STP Z;

The basic reason that above-mentioned vibration produces is that when the routing state of STP changed simultaneously in pairs, Signalling Transfer Point was after receiving opposite end TFP message; Local terminal sends TFA; Local terminal is also received the TFA that send the opposite end simultaneously, so local terminal sends TFP to the opposite end once more, local terminal also receives the TFP that send the opposite end once more simultaneously; Promptly TFP, the TFA message of this moment are sent circlewise, and vibration produces.

For addressing this problem; In the embodiments of the invention; Signalling Transfer Point transmits signal message according to forbidding of receiving or allows to transmit Original Signaling Point and the destination in the signal message, uniquely confirms a route, and whether the timer that detects above-mentioned newly-increased this route is in running status; If be in running status, then inhibit signal message or permission transmission signal message are abandoned or are not done the processing of route routing; If the timer of above-mentioned newly-increased this route is not in running status, then start the above-mentioned timer of this route, and in the time of setting, to inhibit signal message or allow to transmit signal message and abandon or do not make the route routing and handle.

Wherein, To inhibit signal message or allow to transmit specifically being embodied as that signal message abandons or do not do that the route routing handles: no longer call and carry out the function that the route routing is handled; Can carry out the route routing after this function under normal circumstances is called and handle, no longer call here and promptly mean inhibit signal message or allow to transmit signal message and do not deal with.Hereinafter is mentioned carry out discard processing or do not do the processing of route routing is identical with here.

The timer of above-mentioned this route then after, Signalling Transfer Point can stop the operation of this timer automatically; One-shot that just can be new when receive the TFP message about this route next time again;

So, broken sending out and sending of above-mentioned ring-type message, avoided the generation of vibration, detailed process is following:

Step 1, Signalling Transfer Point STP Y and STP Z are respectively to the newly-increased timer of every the route that disposes on this signalling point;

After step 2, Signalling Transfer Point STP Y and STP Z receive TFP message; After resolving message; The route of the destination that unique definite STP Y and STP Z arrival TFP message are carried, and start the timer that above-mentioned steps 1 is described to this route respectively, respectively simultaneously to opposite end transmission TFA message;

Step 3, in the time of above-mentioned newly-increased route timer operation, Signalling Transfer Point STP Y and STPZ carry out discard processing to the TFP that relates to this route that receives with TFA and perhaps do not do the processing of route routing.

In the above-mentioned steps 3; The generation reason of the TFP that STP Y and STP Z receive possibly be that Original Signaling Point point coding corresponding signaling point sends out according to the above-mentioned first or the 3rd principle in the TFP message, and the generation reason of TFA possibly be that Original Signaling Point point coding corresponding signaling point sends out according to the above-mentioned second or the 4th principle in the TFA message.

Step 4, when above-mentioned newly-increased route timer then after, system can stop the timer operation of this route automatically;

Wherein, as shown in Figure 6, a kind of device 10 that solves exception of signaling network provided by the present invention comprises:

Exception processing unit 11 is used for the notice signaling transit point, and in the time that timer is set, message does not deal with to the received signal;

Timer 12 is used to be provided with the regular hour, receives at Signalling Transfer Point to start after forbidding transmitting signal message.

After Signalling Transfer Point receives that forbidding transmitting signal message perhaps allows to transmit signal message; Signalling point is resolved above-mentioned signal message; And startup timer; In the time that limits, exception processing unit notice signaling transit point transmits signal message to the permission that receives and forbids transmitting signal message and carry out discard processing or do not do the processing of route routing;

Wherein, The time of described qualification is by timer 12 controls; Signalling Transfer Point STP Y and STP Z are when receiving TFP message, and the route that the Signalling Transfer Point place is set is in the TFP state, starts timer simultaneously; The limiting time of said timer is a dynamic adjustable according to actual needs, and the length of its time is preferably a second level;

Like this, TFP, the vibration of TFA message are broken, the generation of having avoided TFP, TFA message to vibrate, and its implementation procedure is accomplished by equipment automatically.

As shown in Figure 7, the present invention also provides a kind of system 20 that solves exception of signaling network, comprising:

Signalling Transfer Point 21 is used for transmitting signaling;

Router two 2 has route routing processing capacity, can be set to forbid transmitting signal condition according to this router of signal that Signalling Transfer Point 21 sends;

Exception processing unit 11 is used for notice signaling transit point 21, and in the time that timer is set, message does not deal with to the received signal;

Timer 12 is used to be provided with the regular hour, receives at Signalling Transfer Point 21 to start after forbidding transmitting signal message.

Wherein, Signalling Transfer Point 21 is received forbid transmitting signal message after; Signal is passed to the said router two of receiving 2 of forbidding transmitting the Original Signaling Point that comprises in the signal message and destination signaling point place, said router two 2 is in forbid transmitting signal condition and carries out the route routing and handle.

Embodiment 1

Referring to shown in Figure 3, according to the configuration described in the background technology, be three routes of STP Y configuration to SP A, be respectively:

Route 3: through and STP X between the alternate route of link group, priority is minimum.In like manner, be three routes of STP Z configuration, be respectively to SP A:

At this moment, according to said first principle, STP Y can send TFP message to STP Z, and STP Z can send TFP message to STP Y; STP Y and STP Z are provided with the route 2 at transit point STP Y place and the route 2 at STP Z place and are in the TFP state, and start the newly-increased timer of this route immediately after receiving TFP message; Simultaneously; STP Y and STP Z also can start the refresh process of route routing table respectively, owing to said route 3 can be used, according to said second principle; STP Y sends TFA message to STP Z; STP Z sends TFA message to STP Y, and in the time that above-mentioned newly-increased timer limits, Signalling Transfer Point STP Y and STP Z carry out discard processing to the TFA about this route that receives or do not make the route routing and handle;

So, avoided transit point STP Y and STP Z after the TFA that receives transmission each other, TFP message, send TFP, TFA message to the opposite end each other again, the generation of having avoided TFP, TFA message to vibrate.

Embodiment 2

Present embodiment according to the configuration described in the background technology, is three routes to SP A of STP Y configuration still referring to Fig. 3, is respectively:

All under the situation of fault, STP Y uses route 3 to arrive SP A in the route between direct route, STPY and the STPZ of direct route, SP A and the STP Z of SP A and STP Y, and STP Z uses route 3 to arrive SP A equally; When the route recovery between STPY and the STPZ, STP Y and STP Z carry out refreshing of route routing table respectively, and according to the setting of route priority, STP Y can use route 2 and route 3 to arrive SP A, and STP Z uses route 2 and route 3 to arrive SP A.

STP Y and STP Z are provided with the route 2 at transit point STP Y place and the route 2 at route 3 and STP Z place and are in the TFP state with route 3, and start the newly-increased timer of this route immediately after receiving TFP message; Simultaneously; STP Y and STP Z also can start the refresh process of route routing table respectively, owing to said route 3 can be used, according to said second principle; STP Y sends TFA message to STP Z; STP Z sends TFA message to STP Y, and in the time that timer limits, Signalling Transfer Point STP Y and STP Z carry out discard processing to the TFA about this route that receives or do not make the route routing and handle;

Embodiment 3

Referring to shown in Figure 4, according to the configuration described in the background technology, be two routes of STP Y configuration to SP A, be respectively:

Route 2: through and STP Z between the alternate route of link group.

In like manner, be two routes of STP Z configuration, be respectively to SP A:

Route 2: through and STP Y between the alternate route of link group.

At this moment, according to said first principle, STP Y can send TFP message to STP Z, and STP Z also can send TFP message to STP Y simultaneously;

STP Y and STP Z are provided with the route 2 at transit point STP Y place and the route 2 at STP Z place and are in the TFP state, and start the newly-increased timer of this route immediately after receiving TFP message; Also start simultaneously route routing process again respectively, because the setting of route priority, the route result of routing again remains and selects route 2 to carry out message to send; According to said second principle; STP Y sends TFA message to STP Z, and simultaneously, STP Z also sends TFA message to STP Y; In the time that timer limits, Signalling Transfer Point STP Y and STPZ carry out discard processing to the TFA about this route that receives or do not make the route routing and handle;

It is thus clear that embodiments of the invention have solved because the exception of signaling network problem that the vibration of TFP, TFA message causes, the described method of embodiments of the invention, Apparatus and system are accomplished by equipment automatically, reduces artificial participation, the fail safe of raising signaling network.

The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. method that solves exception of signaling network is characterized in that:

After Signalling Transfer Point is received and forbidden transmitting signal message, start timer; In the time that said timer limits, do not deal with or discard processing for the signal message that receives, wherein, described signal message is meant and allows to transmit signal message and forbid transmitting signal message.

2. method according to claim 1 is characterized in that, this method further comprises: the time dynamic adjustable that said timer limits.

3. a device that solves exception of signaling network is characterized in that, comprising:

Exception processing unit is used for the notice signaling transit point, and in the time that timer is set, message does not deal with or discard processing to the received signal, and wherein, described signal message is meant and allows to transmit signal message and forbid transmitting signal message;

4. device according to claim 3 is characterized in that: the time dynamic adjustable that said timer limits.

5. a system that solves exception of signaling network is characterized in that, comprising:

Signalling Transfer Point is used for transmitting signaling;

6. system according to claim 5 is characterized in that: the time dynamic adjustable that said timer limits.