CN102281165A - Fault detection method based on QoS, system and apparatus thereof - Google Patents
Fault detection method based on QoS, system and apparatus thereof Download PDFInfo
- Publication number
- CN102281165A CN102281165A CN2010102013807A CN201010201380A CN102281165A CN 102281165 A CN102281165 A CN 102281165A CN 2010102013807 A CN2010102013807 A CN 2010102013807A CN 201010201380 A CN201010201380 A CN 201010201380A CN 102281165 A CN102281165 A CN 102281165A
- Authority
- CN
- China
- Prior art keywords
- route
- bfd
- qos
- publisher
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000005856 abnormality Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000012217 deletion Methods 0.000 claims description 7
- 230000037430 deletion Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 4
- 108010001267 Protein Subunits Proteins 0.000 claims 7
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention provides a fault detection method based on a QoS, a system and an apparatus thereof. Aiming at a same routing publisher and a route possessing a same QoS, a routing receiver associates with a same BFD session and respectively establishes a detection tunnel with the routing publisher based on each BFD session. The routing receiver periodically sends BFD messages which packages a tunnel head on the detection tunnel. If the BFD messages are not received in a setting time during sending the BFD messages, the route associated with the BFD session which corresponds with the BFD messages is determined to be abnormal. A tunnel source address included by the tunnel head is an IP address of the routing receiver. A tunnel destination address is the IP address of the routing publisher. A source address of the BFD messages is the IP address of the routing publisher and the destination address is the IP address of the routing receiver. By using the method, the system and the apparatus, different QoS route fault detection of a same path can be realized.
Description
Technical field
The present invention relates to the network communications technology, particularly a kind of quality-of-service based fault detection method, system and device.
Background technology
Service quality (QoS) is a kind of security mechanism of network, with a kind of technology of the obstructing problem that solves network delay, and provides different demands for services with collaborative the use to different user of route technology gradually.Common application scenarios is: the routing property that route publisher is specific for route is provided with, and for example group attribute, extended community attribute, as_path attribute etc., and when the announcement route, carry routing property.Route recipient obtains the routing property of carrying after receiving the route of route publisher announcement, and according to this routing property for this route is provided with qos parameter, comprise that IP precedence, QoS are local to identify etc.These qos parameters need be issued in forwarding information (FIB) table, after route recipient receives packet, search corresponding qos parameter by the source address and the destination address of packet from fib table, and packet is carried out corresponding QoS operation.
Mainly there is following application in existing route based on QoS:
First kind of application: routing policy between the External BGP (EBGP).As shown in Figure 1, Border Gateway Protocol (BGP) route that the router R2 of different autonomous system (AS) carries group attribute to router R1 announcement, after R1 receives the route of R2 announcement, be issued in the fib table for behind this BGP routing configuration qos parameter according to the group attribute that carries.After R1 receives that destination address is the packet of IP address of R2, from FIB, obtain the qos parameter of corresponding BGP route correspondence, and this packet is carried out corresponding QoS operation.
Second kind of application: the routing policy between the VPN.When PE connects a plurality of VPN, carry routing property during to certain virtual private network (VPN) examples (VSI) issue route, after far-end PE equipment is received route, for this route qos parameter is set according to routing property, and is issued in the fib table.After this far-end PE equipment is received the next packet of CE, search the qos parameter that fib table is determined corresponding route, and packet is carried out corresponding QOS operation.
In the existing route technology based on QoS, may there be multiple QoS in the different routes on the same paths, and for example, may there be 10 routes in switch R1 to the path between the switch R2, and these 10 routes one co-exist in 3 kinds of QoS.At this situation, fault detection mechanism of the prior art only can carry out two-way forwarding at R1 and detect (BFD) to the path between the R2, but the route of different QoS to congested be different with transmission requirements such as packet loss situations, therefore, the requirement of switching for the path also is different, this just need carry out fault detect respectively at the route of different QoS, and obviously, prior art can't satisfy this demand.
Summary of the invention
In view of this, the invention provides a kind of fault detection method, system and device, detect so that realize the routing failure of different QoS on the same path based on QoS.
A kind of fault detection method based on service quality QoS, route recipient will detect the BFD session with same two-way forwarding at same route publisher and the route with identical QoS and be associated, and set up the detection tunnel with the route publisher respectively at each BFD session; This method comprises:
Described route recipient periodically sends the BFD message that has encapsulated the tunnel head on the detection tunnel, if in the setting-up time that sends described BFD message, do not receive described BFD message, determine that then the route that the pairing BFD session of described BFD message is associated takes place unusual;
Wherein, the tunnel source address that described tunnel head comprises is described route recipient's IP address, and the tunnel destination address is described route publisher's IP address; The source address of described BFD message is described route publisher's IP address, and destination address is described route recipient's IP address.
A kind of failure detector based on service quality QoS is arranged among the route recipient, and this device comprises: unit and abnormality detection unit are set up in BFD session management unit, detection tunnel;
Described BFD session management unit is used for and will be associated with same BFD session at same route publisher and route with identical QoS;
The unit is set up in described detection tunnel, is used for setting up detection tunnel between route recipient and the route publisher respectively at each BFD session;
Described abnormality detection unit, be used on the detection tunnel, periodically sending the BFD message that has encapsulated the tunnel head, if in the setting-up time that sends described BFD message, do not receive described BFD message, determine that then the route that the pairing BFD session of described BFD message is associated takes place unusual;
Wherein, the tunnel source address that described tunnel head comprises is described route recipient's IP address, and the tunnel destination address is described route publisher's IP address; The source address of described BFD message is described route publisher's IP address, and destination address is described route recipient's IP address.
As can be seen from the above technical solutions, the route recipient will be associated with same BFD session at same route publisher and the route with identical QoS among the present invention, and at each BFD session set up respectively and the route publisher between the detection tunnel.By sending the BFD message that returns the route recipient after transmitting by IP on the tunnel detecting,, realize that the routing failure of different QoS on the same path detects for the flow of specific QoS provides independently testing mechanism.
Description of drawings
Fig. 1 is based on the route technology schematic diagram of QoS in the prior art;
The flow chart of setting up the BFD session that Fig. 2 provides for the embodiment of the invention;
The route abnormality detection schematic diagram that Fig. 3 provides for the embodiment of the invention;
The BFD message format figure of the encapsulation tunnel head that Fig. 4 provides for the embodiment of the invention;
Another route abnormality detection schematic diagram that Fig. 5 provides for the embodiment of the invention;
Fig. 6 is an apparatus structure schematic diagram provided by the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
Method provided by the invention mainly comprises: route recipient will be associated with same BFD session at same route publisher and the route with identical QoS, and set up the detection tunnel with the route publisher respectively at each BFD session; Route recipient periodically sends the BFD message that has encapsulated the tunnel head detecting on the tunnel, if do not receive this BFD message in the setting-up time that sends this BFD message, determine that then the route that the corresponding BFD session of this BFD message institute is associated takes place unusually; Wherein the tunnel source address that comprises of the packed tunnel head of BFD message is route recipient's IP address, the tunnel destination address is route publisher's IP address, the source address of BFD message is route publisher's IP address, and destination address is route recipient's IP address.
Because the route technology based on QoS is provided at present, BFD detects for the route that has different QoS on the same path being carried out independently, need distribute the BFD session separately for the route of different QoS, and the BFD session associated with the route of corresponding QoS, make the routing forwarding path strict conformance of BFD message and corresponding QoS.
The process that route recipient sets up the BFD session can may further comprise the steps as shown in Figure 2:
Step 201: after route recipient received the route of route publisher issue, the routing property of carrying according to this route was determined the QoS of this route.
Step 202: judge whether there has been this route in the fib table, if there is no, then execution in step 203; If exist, then execution in step 206.
Step 203: judge whether exist in the fib table and the route that receives corresponding identical route publisher of route and corresponding identical QoS, if not, then execution in step 204; If, execution in step 205.
Step 204: in the route that receives and the corresponding FIB of adding to of QoS that determines, and the BFD session that is associated for this route foundation, process ends.
Step 205: the route that receives is added among the FIB corresponding, and this route and corresponding identical route publisher and route with identical QoS be associated to same BFD session, process ends with the QoS that determines.
Step 206: whether the QoS that judges this route correspondence that has existed in the fib table is consistent with the QoS that determines, if not, and execution in step 207; If, process ends.
Step 207: the QoS of this route correspondence in the fib table is updated to definite QoS, delete the incidence relation of this route and existing BFD session, and,, then delete above-mentioned existing BFD session if there is not other route to be associated with above-mentioned existing BFD session according to the BFD session that the QoS that determines sets up association.
Below by a specific embodiment, said method is described in detail.As shown in Figure 3, R2 is the route publisher, and R1 is the route recipient.Suppose that three routes of R2 issue are to R1, be respectively route 1, route 2 and route 3, after R1 receives three routes of R2 issue, the routing property of carrying respectively during according to three routes of issue is to be issued in the fib table behind the routing configuration QoS, if route 1 is identical with the QoS of route 2, be designated QoS1, the QoS of route 3 is designated QoS2.
R1 will be associated to same BFD session at R2 and the route with identical QoS, be about to the route 1 and route 2 related BFD sessions 1 of corresponding QoS1, the route 3 related BFD sessions 2 of corresponding QoS2.
For the route of giving identical QoS provides independently BFD sense channel, can set up a detection tunnel respectively for each BFD session.Be that R1 sets up detection tunnel 1 at BFD session 1 with R2, set up with R2 at BFD session 2 and detect tunnel 2.Wherein, the detection tunnel 1 of foundation and 2 address, two ends are respectively the IP address of R1 and the IP address of R2, and the loopback port address of router can be adopted in this IP address.Route publisher R2 can announce its own IP address to R1 in the issue route, and R1 utilizes the IP address of the R2 that gets access to and R2 to set up the detection tunnel.The detection tunnel of setting up can be IPv4 tunnel or IPv6 tunnel.In fact, the detection tunnel 1 that herein relates to is in logic different tunnels with detecting tunnel 2, and the BFD session association of both and different QoS promptly is used to distinguish and carry the BFD message of different QoS.
Whether unusual detecting the BFD message that sends the descriptor that carries BFD session 1 on the tunnel 1 if detecting the path of route 1 and route 2 for R1, and whether unusual detecting the BFD message that sends the descriptor that carries BFD session 2 on the tunnel 2 if detecting the path of route 3.Because the QoS that the QoS of route 1 and route 2 correspondences and route 3 are corresponding is also inequality, i.e. QoS1 and QoS2 and inequality, therefore, the unusual standard in path is also inequality, and corresponding accuracy of detection is difference also.Can detect tunnel 1 and detect the different accuracy of detection that are provided with that tunnel 2 sends the cycle of BFD message by on R1, being provided with among the present invention.For example, route 1 and route 2 corresponding speech businesses, the quality height of corresponding QoS1 then can be less in the cycle that the BFD message that sends on the detection tunnel 1 is set on the R1; Route 3 is general data business, and the quality of corresponding QoS2 is low, then can be bigger in the sense cycle that the BFD message that sends on the detection tunnel 2 is set on the R1.
The BFD message is when entering the tunnel, be routed tunnel head of recipient R1 encapsulation, transmit according to this tunnel head, the route publisher R2 of the tunnel other end separates tunnel encapsulation with the BFD message that receives, and according to the IP mode BFD message is transmitted after peeling off the tunnel head.
Particularly, R1 sends the BFD message that has encapsulated the tunnel head respectively on detection tunnel 1 and detection tunnel 2, and the encapsulation tunnel head can be replied the BFD message of (ECHO) type by expansion and be realized.As shown in Figure 4, increasing a tunnel head in the BFD message, is example with the IPv4 clean culture, and the tunnel source address that comprises in the tunnel head is the IP address of R1, and the tunnel destination address is the IP address of R2; The source address that comprises in the IP head of BFD message is the IP address of R2, and destination address is the IP address of R1.Like this, after detection messages was sent to R2 by detection tunnel 1 or 2, R2 peeled off the tunnel head and obtains the BFD message, when this BFD message was carried out the IP forwarding, because the source address of this BFD message is the IP address of R2, destination address was the IP address of R1, therefore, this BFD message is transmitted back R1 according to the IP mode.
In addition, in the BFD of BFD message payload, can carry the descriptor of BFD session, be used for the BFD message that receives is distinguished, the convenient route of determining that generation is unusual.
If in the setting-up time of R1 after the BFD message of descriptor of BFD session is carried in transmission, do not receive the BFD message that carries this descriptor, determine that then the route of this BFD session correspondence takes place unusual.For example, if R1 is after sending the BFD message of the descriptor that carries BFD session 1 by detection tunnel 1, in setting-up time, do not receive the BFD message of the descriptor that carries BFD session 1, it is unusual to determine that then route 1 that BFD session 1 is associated and route 2 take place, then can to route 1 or route 2 reports an error or processing such as route switching.In a single day promptly detect fault by certain BFD session, then can determine to take place unusually with all routes of this BFD session association, and, according to different troubleshooting strategies, can processing such as unusual route execution reports an error, route switching to taking place.
Because at first send the BFD message by detecting the tunnel between R1 and the R2, therefore, even if there are many routing devices between R1 and the R2, each routing device all can be forwarded to the destination node R2 in tunnel according to the purpose IP address in the tunnel head; R2 transmits according to the IP mode after peeling off the tunnel head, and destination address is the IP address of R1 behind the tunnel head because the BFD message is peeled off, and therefore, if route is normal, the BFD message that then carries BFD conversation description symbol accordingly can normally be sent to R1.
It should be noted that the restriction that needs to get rid of ttl value in the BFD message in the present invention, promptly the value of TTL was less than 255 o'clock, and the BFD message is not dropped.
Among the present invention, because different B FD session is at different route publishers, therefore, this method can be widely used in situation dual-homed or many EBGP network.As shown in Figure 5, R2 and R3 issue route as the route publisher to R1, after R1 disposes QoS respectively to the route that receives, create one or more BFD sessions respectively, detection tunnel of each BFD conversation establishing at R2 and R3 according to said method of the present invention and R2 and R3 respectively.For example, the route situation of supposing R2 issue as shown in Figure 5, then on R1, create two detection tunnels, wherein detect route 1 and route 2 that tunnel 1 is used to detect the R2 issue, detect the route 3 that tunnel 2 is used to detect the R3 issue, wherein route 1 and route 2 corresponding QoS1, route 3 corresponding QoS2 are associated route 1 and route 2 with BFD session 1, detect on detection tunnel 1, route 3 is associated with BFD session 2, detects in detection tunnel 2.R3 issues route 1, route 2 and route 3 equally, wherein, route 1 and route 2 corresponding QoS1, route 3 corresponding QoS2, route 1 and route 2 are associated with BFD session 3, route 3 is associated with BFD session 4, between R1 and R3, set up and detect tunnel 3 and detect tunnel 4, the BFD message that wherein sends the descriptor that comprises BFD session 3 on detection tunnel 3 is used to detect route 1 and route 2, and the BFD message that sends the descriptor that comprises BFD session 4 on detection tunnel 4 is used to detect route 3.The fib table of the last foundation of R1 and the corresponding relation of BFD session as shown in Figure 5, if BFD session 1 detects unusually, then R1 can be rapidly switches to next with the flow of route 1 and route 2 and jumps and be the path of R3 correspondence.
More than be that method provided by the present invention is described in detail with carrying out, below system provided by the present invention and device be described in detail.System provided by the present invention mainly comprises: route recipient and route publisher.
Route recipient is used for and will be associated with same BFD session at same route publisher and route with identical QoS, and sets up the detection tunnel with the route publisher respectively at each BFD session; Periodically send the BFD message that has encapsulated the tunnel head on the detection tunnel, if do not receive the BFD message in the setting-up time that sends the BFD message, the route generation that then definite pairing BFD session of BFD message is associated is unusual.
Route publisher is used for peeling off the tunnel head by after detecting the tunnel and receiving the BFD message that has encapsulated the tunnel head, according to the destination address of BFD message the BFD message is carried out IP and transmits.
Wherein, the tunnel source address that the tunnel head comprises is route recipient's IP address, and the tunnel destination address is route publisher's IP address; The source address of BFD message is route publisher's IP address, and destination address is route recipient's IP address.
The apparatus structure schematic diagram that Fig. 6 provides for the embodiment of the invention, this device are arranged among the above-mentioned route recipient, and as shown in Figure 6, this device can comprise: unit 610 and abnormality detection unit 620 are set up in BFD session management unit 600, detection tunnel.
BFD session management unit 600 is used for and will be associated with same BFD session at same route publisher and route with identical QoS.
Detect the tunnel and set up unit 610, be used for setting up detection tunnel between route recipient and the route publisher respectively at each BFD session.
Wherein, the tunnel source address that the tunnel head comprises is route recipient's IP address, and the tunnel destination address is route publisher's IP address; The source address of BFD message is route publisher's IP address, and destination address is route recipient's IP address.
Wherein, BFD session management unit 600 can specifically comprise: route processing subelement 601, first judgment sub-unit 602, second judgment sub-unit 603, the 3rd judgment sub-unit 604, FIB safeguard subelement 605 and session management subelement 606.
Route is handled subelement 601, and after being used to receive the route of route publisher issue, the routing property of carrying according to this route that receives is determined the QoS of the route that this receives.
The 3rd judgment sub-unit 604, be used to receive judge notice after, judge whether the QoS of the route correspondence that receives that has existed in the fib table consistent with definite QoS.
FIB safeguards subelement 605, is used in the judged result of second judgment sub-unit 603 for not the time, with among route that receives and the corresponding FIB of adding to of QoS that determines, sends to set up to session management subelement 606 and notifies; , the route that receives added in the fib table and corresponding when being in the judged result of second judgment sub-unit 603, send related notice to session management subelement 606 with the QoS that determines; For not the time, the QoS of the route correspondence that receives that existed in the fib table is updated to definite QoS in the judged result of the 3rd judgment sub-unit 604, sends the deletion notice to session management subelement 606.
In addition, route is handled subelement 601, can also be used to receive the route publisher's that the route publisher issues when the issue route IP address.
Detecting the tunnel sets up IP address that unit 610 utilizes the route publisher and sets up detection tunnel between route recipient and the route publisher.
Particularly, abnormality detection unit 620 QoS that can have according to the route that the BFD session is associated is provided with the transmission cycle of BFD message; Wherein, the transmission cycle of the BFD message of the high more correspondence of QoS is more little.
By above description as can be seen, the route recipient will be associated with same BFD session at same route publisher and the route with identical QoS among the present invention, and at each BFD session set up respectively and the route publisher between the detection tunnel.By sending the BFD message that returns the route recipient after transmitting by IP on the tunnel detecting,, realize that the routing failure of different QoS on the same path detects for the flow of specific QoS provides independently testing mechanism.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. fault detection method based on service quality QoS, it is characterized in that, route recipient will detect the BFD session with same two-way forwarding at same route publisher and the route with identical QoS and be associated, and set up the detection tunnel with the route publisher respectively at each BFD session; This method comprises:
Described route recipient periodically sends the BFD message that has encapsulated the tunnel head on the detection tunnel, if in the setting-up time that sends described BFD message, do not receive described BFD message, determine that then the route that the pairing BFD session of described BFD message is associated takes place unusual;
Wherein, the tunnel source address that described tunnel head comprises is described route recipient's IP address, and the tunnel destination address is described route publisher's IP address; The source address of described BFD message is described route publisher's IP address, and destination address is described route recipient's IP address.
2. method according to claim 1 is characterized in that, described route recipient will be associated with same BFD session at same route publisher and the route with identical QoS and specifically comprise:
After A1, described route recipient received the route of route publisher issue, the routing property of carrying according to this route that receives was determined the QoS of the route that this receives;
A2, judge whether there has been this route that receives in the forwarding information fib table, if there is no, execution in step A3; If there is execution in step A4;
A3, judge whether exist with the corresponding identical route publisher of the route that receives in the described fib table and have the route of identical QoS, if not, in the route that receives and the corresponding FIB of adding to of QoS that determines, and the BFD session that is associated for this route that receives foundation, process ends; If the route that receives added among the FIB and corresponding, and this route that receives and corresponding identical route publisher and route with identical QoS is associated to same BFD session, process ends with described definite QoS;
A4, judge that the QoS of this route correspondence that receives that has existed described in the described fib table is whether consistent with the QoS that determines, if, process ends; If not, the QoS of the route correspondence that this receives in the described fib table is updated to definite QoS, delete the incidence relation of this route that receives and existing BFD session, and according to described definite related BFD session of QoS foundation, if do not have other route to be associated, then delete described existing BFD session with described existing BFD session.
3. method according to claim 1 is characterized in that, this method also comprises: described route publisher is in issue during route, and route publisher's IP address is distributed to described route recipient;
Described route recipient utilizes described route publisher's IP address and route publisher to set up the detection tunnel.
4. method according to claim 1 is characterized in that, the QoS that the described route publisher route that session is associated according to BFD has is provided with the transmission cycle of BFD message; Wherein, the transmission cycle of the BFD message of the high more correspondence of QoS is more little.
5. according to the described method of the arbitrary claim of claim 1 to 4, it is characterized in that, described route publisher peels off the tunnel head after receiving the BFD message that has encapsulated the tunnel head by described detection tunnel, according to the destination address of described BFD message described BFD message is carried out IP and transmits.
6. the failure detector based on service quality QoS is arranged among the route recipient, it is characterized in that, this device comprises: unit and abnormality detection unit are set up in BFD session management unit, detection tunnel;
Described BFD session management unit is used for and will be associated with same BFD session at same route publisher and route with identical QoS;
The unit is set up in described detection tunnel, is used for setting up detection tunnel between route recipient and the route publisher respectively at each BFD session;
Described abnormality detection unit, be used on the detection tunnel, periodically sending the BFD message that has encapsulated the tunnel head, if in the setting-up time that sends described BFD message, do not receive described BFD message, determine that then the route that the pairing BFD session of described BFD message is associated takes place unusual;
Wherein, the tunnel source address that described tunnel head comprises is described route recipient's IP address, and the tunnel destination address is described route publisher's IP address; The source address of described BFD message is described route publisher's IP address, and destination address is described route recipient's IP address.
7. device according to claim 6, it is characterized in that described BFD session management unit specifically comprises: route processing subelement, first judgment sub-unit, second judgment sub-unit, the 3rd judgment sub-unit, FIB safeguard subelement and session management subelement;
Described route is handled subelement, and after being used to receive the route of described route publisher's issue, the routing property of carrying according to this route that receives is determined the QoS of the route that this receives;
Described first judgment sub-unit is used for judging whether the forwarding information fib table has existed the route that receives, and if there is no, sends the judgement notice to described second judgment sub-unit; If exist, send the judgement notice to described the 3rd judgment sub-unit;
Described second judgment sub-unit, be used to receive judge notice after, judge whether exist with the corresponding identical route publisher of the described route that receives in the described fib table and have the route of identical QoS;
Described the 3rd judgment sub-unit, be used to receive judge notice after, judge whether the QoS of the described route correspondence that receives that has existed in the described fib table consistent with the QoS that determines;
Described FIB safeguards subelement, is used in the judged result of described second judgment sub-unit for not the time, with among the described route that receives and the corresponding FIB of adding to of QoS that determines, sends to set up to described session management subelement and notifies; , the described route that receives added in the fib table and corresponding when being in the judged result of described second judgment sub-unit, send related notice to described session management subelement with described definite QoS; For not the time, the QoS of the described route correspondence that receives that existed in the fib table is updated to described definite QoS in the judged result of described the 3rd judgment sub-unit, sends the deletion notice to described session management subelement;
Described session management subelement, be used to receive described foundation notice after, for the described route that receives is set up the BFD session that is associated; After receiving described related notice, the described route that receives and corresponding identical route publisher and route with identical QoS are associated to same BFD session; After receiving described deletion notice, the route that receives described in the deletion fib table and the incidence relation of existing BFD session, and,, then delete described existing BFD session if there is not other route to be associated with described existing BFD session according to the BFD session that described definite QoS sets up association.
8. device according to claim 7 is characterized in that, described route is handled subelement, also is used to receive the described route publisher's that described route publisher issues when the issue route IP address;
The detection tunnel between route recipient and the route publisher is set up in the IP address that the described route publisher of unit by using is set up in described detection tunnel.
9. device according to claim 6 is characterized in that, the QoS that the described abnormality detection unit route that session is associated according to BFD has is provided with the transmission cycle of BFD message; Wherein, the transmission cycle of the BFD message of the high more correspondence of QoS is more little.
10. the fault detection system based on service quality QoS is characterized in that, this system comprises: route recipient and route publisher;
Described route recipient is used for and will be associated with same BFD session at same route publisher and route with identical QoS, and sets up the detection tunnel with described route publisher respectively at each BFD session; Periodically send the BFD message that has encapsulated the tunnel head on the detection tunnel, if do not receive described BFD message in the setting-up time that sends described BFD message, the route generation that then definite pairing BFD session of described BFD message is associated is unusual;
Described route publisher is used for peeling off the tunnel head by after detecting the tunnel and receiving the BFD message that has encapsulated the tunnel head, according to the destination address of described BFD message described BFD message is carried out IP and transmits;
Wherein, the tunnel source address that described tunnel head comprises is described route recipient's IP address, and the tunnel destination address is described route publisher's IP address; The source address of described BFD message is described route publisher's IP address, and destination address is described route recipient's IP address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102013807A CN102281165A (en) | 2010-06-09 | 2010-06-09 | Fault detection method based on QoS, system and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102013807A CN102281165A (en) | 2010-06-09 | 2010-06-09 | Fault detection method based on QoS, system and apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102281165A true CN102281165A (en) | 2011-12-14 |
Family
ID=45106362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102013807A Pending CN102281165A (en) | 2010-06-09 | 2010-06-09 | Fault detection method based on QoS, system and apparatus thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102281165A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739530A (en) * | 2012-06-19 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for preventing network reachability detection from being invalidated |
| CN106302248A (en) * | 2016-08-31 | 2017-01-04 | 杭州华三通信技术有限公司 | A kind of neighbours' method for building up and device |
| CN103746881B (en) * | 2014-01-13 | 2017-03-15 | 杭州华三通信技术有限公司 | Neighbor state detection method and device in EVI networks |
| CN108881295A (en) * | 2018-07-24 | 2018-11-23 | 瑞典爱立信有限公司 | For detecting and solving the method and the network equipment of anomalous routes |
| CN109327390A (en) * | 2018-11-29 | 2019-02-12 | 新华三技术有限公司 | A kind of traffic scheduling method and device |
| WO2021050435A1 (en) * | 2019-09-10 | 2021-03-18 | Cisco Technology, Inc. | Determining connectivity between compute nodes in multi-hop paths |
| CN113225252A (en) * | 2021-07-09 | 2021-08-06 | 腾讯科技（深圳）有限公司 | Establishment method, processing method and related equipment for Bidirectional Forwarding Detection (BFD) session |
| CN113872833A (en) * | 2021-09-30 | 2021-12-31 | 新华三信息安全技术有限公司 | Method, system and equipment for detecting path accessibility |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1463248A2 (en) * | 2003-03-24 | 2004-09-29 | NTT DoCoMo, Inc. | Method of controlling Qos in IP network |
| CN1731757A (en) * | 2004-08-05 | 2006-02-08 | 华为技术有限公司 | Method and system for providing QoS assurance in edge router |
| CN1838620A (en) * | 2005-03-25 | 2006-09-27 | 华为技术有限公司 | Method for detecting chain circuit fault between end-to-end notes in mixed network |
| CN101047651A (en) * | 2007-04-23 | 2007-10-03 | 杭州华为三康技术有限公司 | Method, system and equipment for setting IP priority level |
-
2010
- 2010-06-09 CN CN2010102013807A patent/CN102281165A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1463248A2 (en) * | 2003-03-24 | 2004-09-29 | NTT DoCoMo, Inc. | Method of controlling Qos in IP network |
| CN1731757A (en) * | 2004-08-05 | 2006-02-08 | 华为技术有限公司 | Method and system for providing QoS assurance in edge router |
| CN1838620A (en) * | 2005-03-25 | 2006-09-27 | 华为技术有限公司 | Method for detecting chain circuit fault between end-to-end notes in mixed network |
| CN101047651A (en) * | 2007-04-23 | 2007-10-03 | 杭州华为三康技术有限公司 | Method, system and equipment for setting IP priority level |
Non-Patent Citations (1)
| Title |
|---|
| 赵海军: "新一代互联网服务及故障检测若干关键技术的研究", 《中国博士学位论文全文数据库 信息科技辑》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739530A (en) * | 2012-06-19 | 2012-10-17 | 中兴通讯股份有限公司 | Method and system for preventing network reachability detection from being invalidated |
| CN102739530B (en) * | 2012-06-19 | 2018-08-07 | 南京中兴软件有限责任公司 | A kind of method and system avoiding network reachability detection failure |
| CN103746881B (en) * | 2014-01-13 | 2017-03-15 | 杭州华三通信技术有限公司 | Neighbor state detection method and device in EVI networks |
| CN106302248A (en) * | 2016-08-31 | 2017-01-04 | 杭州华三通信技术有限公司 | A kind of neighbours' method for building up and device |
| CN106302248B (en) * | 2016-08-31 | 2021-10-12 | 新华三技术有限公司 | Neighbor establishing method and device |
| CN108881295A (en) * | 2018-07-24 | 2018-11-23 | 瑞典爱立信有限公司 | For detecting and solving the method and the network equipment of anomalous routes |
| US11711281B2 (en) | 2018-07-24 | 2023-07-25 | Telefonoktiebolagget LM Ericsson (Publ) | Methods and network devices for detecting and resolving abnormal routes |
| CN109327390A (en) * | 2018-11-29 | 2019-02-12 | 新华三技术有限公司 | A kind of traffic scheduling method and device |
| WO2021050435A1 (en) * | 2019-09-10 | 2021-03-18 | Cisco Technology, Inc. | Determining connectivity between compute nodes in multi-hop paths |
| CN113225252A (en) * | 2021-07-09 | 2021-08-06 | 腾讯科技（深圳）有限公司 | Establishment method, processing method and related equipment for Bidirectional Forwarding Detection (BFD) session |
| CN113872833A (en) * | 2021-09-30 | 2021-12-31 | 新华三信息安全技术有限公司 | Method, system and equipment for detecting path accessibility |
| CN113872833B (en) * | 2021-09-30 | 2023-11-07 | 新华三信息安全技术有限公司 | Method, system and equipment for detecting path accessibility |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8406143B2 (en) | Method and system for transmitting connectivity fault management messages in ethernet, and a node device | |
| US6952397B2 (en) | Communication in a bidirectional ring network with single-direction receiving | |
| US8854975B2 (en) | Scaling OAM for point-to-point trunking | |
| EP3934183B1 (en) | Service function chain sfc-based communication methods, and apparatuses | |
| CN102195822B (en) | Fault detection method and business provider edge (PE) equipment | |
| CN100579034C (en) | Method for reporting device information, system and device for obtaining device information | |
| CN102281165A (en) | Fault detection method based on QoS, system and apparatus thereof | |
| EP2498454A1 (en) | Method, device and system for processing service traffic based on pseudo wires | |
| CN102055672B (en) | Control method for data flow transmission route, device and route equipment | |
| CN101483558A (en) | Method, system and apparatus for packet switching network access by network appliance | |
| US8107474B2 (en) | Method and network node for monitoring traffic in a private VLAN | |
| CN104980372A (en) | Relay System And Switching Device | |
| CN103916275A (en) | BFD detection device and method | |
| EP2553870B1 (en) | An operations, administrations and management proxy and a method for handling operations, administrations and management messages | |
| WO2018113294A1 (en) | Method, device and system for forwarding packet | |
| CN101834759A (en) | Detection method of binding link and distributed equipment | |
| US8238325B2 (en) | Packet communication network and packet communication method | |
| WO2007121633A1 (en) | A method for rapid rerouting when multiple ports sharing the transmission links | |
| US20120224488A1 (en) | Method of connectivity monitoring by subscriber line terminating apparatus | |
| CN107547347B (en) | VNI-based path adjustment method and device | |
| CN102238040B (en) | Method for monitoring CE (Customer Edge router) and routing device | |
| CN101465762B (en) | Method, equipment and system for detecting error connection between protection set ports | |
| JP4873556B2 (en) | Topology detection method, communication device, management device, and program for detecting logical topology of network | |
| US20080304480A1 (en) | Method for Determining the Forwarding Direction of Ethernet Frames | |
| WO2011017892A1 (en) | Method and apparatus for implementing load sharing for communication traffic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111214 |