CN102045245A - Method for protecting switching downlink flow rate during access to backup of user and backup forwarding system - Google Patents
Method for protecting switching downlink flow rate during access to backup of user and backup forwarding system Download PDFInfo
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- CN102045245A CN102045245A CN2009102054787A CN200910205478A CN102045245A CN 102045245 A CN102045245 A CN 102045245A CN 2009102054787 A CN2009102054787 A CN 2009102054787A CN 200910205478 A CN200910205478 A CN 200910205478A CN 102045245 A CN102045245 A CN 102045245A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
- H04L41/5019—Ensuring fulfilment of SLA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
Abstract
The invention discloses a method for protecting switching downlink flow rate during access to backup of a user and a backup forwarding system, wherein the method comprises the following steps of: configuring a standby next hop for a user address on a main service node (SN), wherein the standby next hop points at a standby SN of the main SN; switching to a standby state when the main SN detects that a downlink thereof goes wrong; and sending a return flow rate from a network side to a user side to the standby SN through the standby next hop during the period of route convergence and then forwarding to the user. In the invention, the effect of non-loss of a downlink flow rate in the process of switching the main SN and the standby SN is achieved by utilizing the manner of reorienting the flow rate from downlink to the user to the standby SN, and the downlink flow rate loss of the user in the process that the standby SN refreshes a user route towards an upper network is avoided.
Description
Technical field
The present invention relates to many equipment flow handoff technique, the user who relates in particular to a kind of many equipment rooms inserts downlink traffic switch protecting method and a kind of backup repeater system when backing up.
Background technology
SN (Service Node service node) generally can be realized by the customer service control appliance, as BRAS (Broadband Remote Access Server, broadband remote access servers), perhaps wait other equipment to realize by SR (Service Router, business router).
Along with the number of broadband customers that SN inserted is more and more, the broadband user is more and more higher to the high reliability request in broadband, and therefore, Carrier Requirements is also more and more higher to the access of user ID.
As shown in Figure 1, the existing user ID technology of using is two-node cluster hot backup or multi-host hot swap, this technology makes AN (Access Node access node) insert a plurality of up SN, main access interface and the backup port of standby SN with SN is corresponding one by one, and active and standby SN adopts VRRP (Virtual Router Redundancy Protocol Virtual Router Redundancy Protocol) and BFD (the two-way forwarding detection of Bidirectional Forwarding Detection) technology to come switching state.Main with SN the user profile that inserts is synchronized to standby SN, when standby SN received the main user profile of transmitting with SN, standby SN horse back was issued to interface module with this user profile in the mode of subscriber's meter.When main access interface with SN inserted user's link occurs fault down, standby SN switched to the main SN that uses, and customer flow switches, and flow is transmitted from standby SN.
Prior art adopts the mode of issue main frame route or network segment route to switch when active and standby switching.The principle of this mode is, when SN state when being standby, network segment route or main frame that SN does not issue the user are routed to its upstream router, and when the state of SN is the main time spent, SN issue user's network segment route or main frame are routed to its upstream router.When SN used to standby switching from the master, SN cancelled the network segment route or the main frame route of giving out a contract for a project.Because upstream router is determined the flow forwarding according to route, therefore can switch user's downlink traffic along with the SN activestandby state in this way.
This existing mode exists a problem to be, as long as exist the route issue to cancel, just has the problem of routing convergence.During routing convergence, just original main with SN (present is standby) when the network segment route of cancelling the user or the main frame route, need the regular hour owing to cancelling, so still some flow can be forwarded to the SN of fault.Can't be forwarded to the user because the SN of fault is descending, so flow can transient loss.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of user and inserts downlink traffic switch protecting method and backup repeater system when backing up, and the mode that the flow that goes downwards to the user is redirected to standby SN reaches the effect that the downlink traffic in the active and standby SN handoff procedure is not lost.
In order to solve the problems of the technologies described above, the invention provides a kind of user and insert downlink traffic switch protecting method when backing up, comprising:
It is standby next jumping of station address configuration that working traffic node (SN) is gone up, and described main standby SN with SN is pointed in described standby next jumping;
When described master detects its down link and breaks down with SN, switch to stand-by state, during routing convergence, will send to described standby SN to the backhaul traffic of user side by described standby next jumping, be transmitted to the user again by network side.
Further, described standby SN disposes main next jumping of using, and described master jumps the directed towards user address with next, and described standby SN jumps the backhaul traffic that described master is sent with SN according to described master with next and is transmitted to corresponding user.
Further, described main with SN be station address create standby next when jumping, the mode of employing associated virtual router redundance protocol (VRRP) when the active and standby switching of VRRP, switches to standby next jumping according to described master with the configuration flow on the SN; Or the mode of employing link detection agreement, when the transition of described detection protocol status transfer DOWN to by UP, switch to standby next jumping with the configuration flow on the SN according to described master; Or adopt the mode of priority, when next high jumping of priority can not arrive, standby next jumping that priority is low came into force, a plurality of standby next jump by different priority and confirm the order that comes into force; Or adopt service quality mode redirected or tactful route to realize.
Further, described master also disposes main next jumping of using with SN, and this main jumping with next is pointed to described station address; Described standby SN also disposes standby next jumping, and the described main SN that uses is pointed in this standby next jumping; When described master detects its downlink failure and recovers with SN, switches back to lead and use state, during routing convergence, described standby SN will send to described leading to the backhaul traffic of user side by described standby next jumping by network side and use SN; Described master will send to described user by described master with next jumping to the backhaul traffic of user side by network side with SN.
Further, when described master disposed different standby SN with SN for each user, the backup SN of each user's correspondence was pointed in described standby next jumping; When disposing identical standby SN, for this backup SN is all pointed in standby next jumping that each user is provided with for each user.
In order to solve the problems of the technologies described above, the present invention also provides a kind of backup repeater system, comprise: the standby SN and the access node of working traffic node (SN), correspondence, wherein, the described main SN that uses, be used to station address to create standby next jumping, described main standby SN with the SN correspondence is pointed in this standby next jumping; When detecting its down link and break down, switch to stand-by state, during routing convergence, will send to described standby SN to the backhaul traffic of user side by described standby next jumping by network side; Described standby SN is used for the backhaul traffic that described master sends with SN is forwarded to described user.
Further, described standby SN disposes main next jumping of using, and this is main with next jumping directed towards user address, jumps the backhaul traffic that described master is sent with SN according to described master with next and is transmitted to corresponding user.
Further, the described main SN that use, for station address create standby next when jumping, the mode of employing associated virtual router redundance protocol (VRRP) when the active and standby switching of VRRP, switches to standby next jumping according to described master with the configuration flow on the SN; Or the mode of employing link detection agreement, when the transition of described detection protocol status transfer DOWN to by UP, switch to standby next jumping with the configuration flow on the SN according to described master; Or adopt the mode of priority, when next high jumping of priority can not arrive, standby next jumping that priority is low came into force, a plurality of standby next jump by different priority and confirm the order that comes into force; Or employing QOS is redirected, the mode of tactful route realizes.
Further, described master uses SN, also disposes the master and jumps with next, this main jumping with next is pointed to described station address, when detecting its downlink failure and recovering, switches back the state of using of leading, will send to described user by described master with next jumping to the backhaul traffic of user side by network side; Described standby SN also disposes standby next jumping, and the described main SN that uses is pointed in this standby next jumping; Described main when recovering, during routing convergence, will send to described master to the backhaul traffic of user side by described standby next jumping and use SN by network side with the SN downlink failure.
Further, described master uses SN, and when disposing different standby SN for each user, the backup SN of each user's correspondence is pointed in described standby next jumping; When disposing identical standby SN, for this backup SN is all pointed in standby next jumping that each user is provided with for each user.
Useful technique effect of the present invention:
The present invention adopts the mode that the flow that will go downwards to the user is redirected to standby SN to reach the effect that downlink traffic is not lost in the active and standby SN handoff procedure, has avoided standby SN to lose to user's downlink traffic that upper layer network refreshes in user's routing procedure.
Description of drawings
Fig. 1 is a network topology schematic diagram related in the embodiment of the invention;
Fig. 2 is network descending flow path schematic diagram when active and standby SN does not have failover related in the embodiment of the invention;
Fig. 3 descending flow path schematic diagram that is network related in the embodiment of the invention when active and standby SN failover;
Fig. 4 is the method flow diagram in the embodiment of the invention;
Fig. 5 is the system construction drawing in the embodiment of the invention.
Embodiment
Core of the present invention is: it is standby next jumping of address creation that needs the user of backup that the master goes up with SN, and outgoing interface points to the stand-by equipment of this SN; When the down link of described SN breaks down when causing carrying out active and standby switching, during routing convergence, the backhaul traffic from the network side to the user side is redirected to its stand-by equipment by the outgoing interface of described SN, is transmitted to the user again.The signal that its flow switches is referring to Fig. 2 and 3.
The present invention will be described with an embodiment below.Referring to Fig. 4.
Step S1 is configured on SN equipment main, and is main with on the SN equipment station address of needs backup being created standby next jumping, this next jump out mouthful standby SN equipment of final sensing; The master jumps the directed towards user address with current use master on the SN equipment with next;
Also will be configured at standby SN equipment this moment, and standby SN equipment disposition has main next jumping of using, and this is main with next jumping directed towards user address; On the standby SN equipment above-mentioned station address is created standby next jumping, this next jump out mouthful final main SN equipment of using that points to;
Step S2, the master breaks down with next jumping to its master with the SN Equipment Inspection, and is main with next jumping directed towards user address, relates to by the down link of network side to user side;
Step S3, during routing convergence, the master carries out user's downlink traffic with SN equipment is redirected, and is forwarded to its standby next jumping;
The master switches to its state standby with SN equipment, this moment, its main jumping with next was lost efficacy, and standby next jumping comes into force, and the master is forwarded to its standby next jumping with SN equipment with the flow that receives, standby SN equipment is pointed in standby next jumping, and this standby SN equipment has switched to the main state of using;
Standby SN equipment is transmitted to corresponding user according to its main backhaul traffic of described master being sent with SN with next jumping;
Obviously, when breaking down, during the routing convergence, flow be all the time by main with SN equipment through standby SN device forwards to the user, so flow can not lose.
So far, carry out the downlink traffic switch protecting one time, switch to standby SN equipment with SN equipment by main.
Behind the routing convergence, this moment, above-mentioned master switched to stand-by state with SN equipment, and standby SN equipment has switched to the main state of using, carried out normal downlink traffic by standby SN equipment and transmitted, and next of its current use jumped directed towards user address;
Step S4, the master jumps fault recovery to its master with next with the SN Equipment Inspection;
Step S5, during routing convergence, standby SN equipment carries out user's downlink traffic to be redirected, and is forwarded to its standby next jumping, points to the main SN equipment of using;
Standby SN equipment switches back stand-by state with its state by main using, and the master returns the main state of using by standby switching with SN equipment;
Step S6 main will arrive the descending flow of user with SN equipment and be forwarded to it again and mainly use next jumping, and the master is with next jumping directed towards user address.
So far, carry out downlink traffic once more and switch, switch to the former main SN equipment of using by former standby SN equipment.
Pay special attention to, when the master disposed different standby SN with SN equipment for each user, the backup SN of each user's correspondence was pointed in described standby next jumping; When disposing identical standby SN, for this backup SN is all pointed in standby next jumping that each user is provided with for each user.
The present invention will be described with an application example below, adopts QoS (Quality of Service service quality) policy redirection to realize standby next jumping.
Step 100, configuration is redirected strategy;
Current main using on the BRAS equipment, for different users sets up qos policy, be redirected rule as ACL (Access Control List Access Control List (ACL)), the strategy content becomes when standby with the BRAS equipment state at the main of user, and this user's of receiving downlink traffic is mail to this user's standby BRAS equipment (this moment, this standby BRAS equipment switched to the state of using of leading);
Current master is that its master uses next jumping, directed towards user address with the use of BRAS equipment;
Standby BRAS equipment also carries out standby next jumping configuration as above, points to the main BRAS equipment of using; Simultaneously standby BRAS equipment also disposes main next jumping of using, and this is main jumps the directed towards user address with next, so that when receiving the main flow of sending with BRAS equipment, can correctly be transmitted to the user of correspondence;
Step 101, when main down link with BRAS equipment broke down, during the routing convergence, the master was come into force with BRAS device trigger qos policy, and its main jumping with next was lost efficacy;
Step 102, main state with BRAS equipment switches to standby, and the flow that mails to the user that will receive simultaneously is forwarded to this user's standby BRAS equipment according to the qos policy of correspondence;
Standby BRAS equipment is transmitted to corresponding user according to its main jumping with next with the described main backhaul traffic of sending with BRAS equipment;
Standby BRAS equipment is when detecting main down link with BRAS equipment and break down, and state automatically switches to main usefulness;
Step 103 behind the routing convergence, is carried out normal downlink traffic by former standby BRAS equipment and is transmitted;
When the former main BRAS of using equipment downlink failure was recovered, former main recovering state with BRAS equipment returned main usefulness, and during the routing convergence, the flow that mails to the user that standby BRAS equipment will receive is forwarded to the main BRAS equipment of using according to the qos policy of correspondence;
This master is come into force with next jumping with the master of BRAS equipment, and flow directly is forwarded to the user by host apparatus.
The present invention will be described with an application example more below, adopts routing policy to be redirected and realize standby next jumping.
Step 200, configuration is redirected strategy;
On the SR of current main usefulness equipment, for different users sets up routing policy, as configuration or dynamic distributing policy route, the strategy content becomes when standby with the SR equipment state at the main of user, and this user's of receiving downlink traffic is mail to this user's standby SR equipment (this moment, this standby SR equipment switched to the state of using of leading);
Current master is main use next jumping, directed towards user address with the use of SR equipment;
Standby SR equipment also carries out standby next jumping configuration as above, points to the main SR equipment of using; Simultaneously standby SR equipment also disposes main next jumping of using, and this is main jumps the directed towards user address with next, so that when receiving the main flow of sending with SR equipment, can correctly be transmitted to the user of correspondence;
Step 201, when main down link with SR equipment broke down, during the routing convergence, the master triggered routing policy with SR and comes into force, and its main jumping with next was lost efficacy;
Step 202, main state with SR equipment switches to standby, and the flow that mails to the user that will receive simultaneously is forwarded to this user's standby SR equipment according to the routing policy of correspondence;
Standby SR equipment is transmitted to corresponding user according to its main jumping with next with the described main backhaul traffic of sending with SR equipment;
Standby SR equipment is when detecting main down link with SR equipment and break down, and state automatically switches to main usefulness;
Step 203 behind the routing convergence, is carried out normal downlink traffic by former standby SR equipment and is transmitted;
When the former main SR of using equipment downlink failure was recovered, former main recovering state with SR equipment returned main usefulness, and during the routing convergence, the flow that mails to the user that standby SR equipment will receive is forwarded to the main SR equipment of using according to the routing policy of correspondence;
This master is come into force with next jumping with the master of SR equipment, and flow directly is forwarded to the user by host apparatus.
The present invention will be described with an application example more below, adopts standby next jumping of equipment disposition, and related VRRP switches and comes redirect traffic.
Step 300, on the BRAS of current main usefulness equipment, the destination address that configuration is transmitted is a station address, it is that the master jumps with next; Dispose simultaneously standby next jump, this next jump out mouthful point to main with BRAS equipment and the direct-connected link of standby BRAS equipment;
Standby BRAS equipment also carries out standby next jumping configuration as above, and the main BRAS equipment of using is pointed in its standby next jumping; Simultaneously standby BRAS equipment also disposes main next jumping of using, and this is main jumps the directed towards user address with next, so that when receiving the main flow of sending with BRAS equipment, can correctly be transmitted to the user of correspondence;
Step 301, when the master used BRAS equipment downlink failure, main VRRP with BRAS switched to standby, and during the routing convergence, the master of the destination address that dispose on the equipment this moment jumps inefficacy with next, and standby next jumping comes into force;
Step 302, main state with BRAS equipment switches to standby, and the flow that mails to the user that will receive simultaneously forwards the traffic to this user's standby BRAS equipment according to standby next jumping of configuration;
Standby BRAS equipment is transmitted to corresponding user according to its main jumping with next with the described main backhaul traffic of sending with BRAS equipment;
Standby BRAS equipment is when detecting main down link with BRAS equipment and break down, and state automatically switches to main usefulness;
Step 303 behind the routing convergence, is carried out normal downlink traffic by former standby BRAS equipment and is transmitted;
When the former main BRAS of using equipment downlink failure was recovered, former main recovering state with BRAS equipment returned main usefulness, and during the routing convergence, the flow that mails to the user that standby BRAS equipment will receive is dealt into the main BRAS equipment of using according to standby next redirect of configuration;
This master is come into force with next jumping with the master of BRAS equipment, and flow directly is forwarded to the user by host apparatus.
In addition, the present invention main be that station address is when creating standby next jumping with SN, can also adopt the mode of related BFD, ether OAM link detection agreements such as (Operations Administration and Maintenance Operations,Administration And Maintenances), and the realization of the mode of priority.
In the Another Application example, the present invention main be station address when creating standby next jumping with SN, promptly adopt the mode of link detection agreements such as related BFD, ether OAM to realize.When these detection protocol status transition transfer DOWN to by UP, switch to standby next jumping according to the configuration flow on the SN equipment.
In the Another Application example, the present invention main with SN be station address create standby next when jumping, promptly the mode of employing priority realizes.Jump when unreachable when high next of priority, standby next jumping that priority is low comes into force, and standby next jumping is not restricted to one, different standby next jump by different priority and confirm the order that comes into force.
As shown in Figure 5,, comprise for backup repeater system of the present invention, main standby SN 2 and access node 3 with SN 1, correspondence, wherein,
Main with SN 1, be used to standby next jumping of address creation of the user who needs backup, point to stand-by equipment; For the user's of needs backups address creation master jumps the directed towards user address with next; When detecting its down link and break down, switch to stand-by state, and the backhaul traffic from the network side to the user side by standby next jump and send stand-by equipment; When detecting its downlink failure recovery, switch back the master and use state, and the backhaul traffic from the network side to the user side directly is sent to the user by main the jumping with next;
Standby SN 2 when the down link that detects host apparatus breaks down, switches to and mainly uses state, and the backhaul traffic that host apparatus sends is forwarded to described user; When detecting the downlink failure recovery of host apparatus, switch back stand-by state.
Master of the present invention uses, standby SN is consistent from structure, all relates to identical equipment, comprising: configuration module 10, detection handover module 20 and reception forwarding module 30;
When wherein, working as host apparatus:
Configuration module 10, be used for to the station address of needs backups create standby next jump, this next jump out a mouthful final stand-by equipment that points to current device; Also be used to dispose the master that current device uses and jump the directed towards user address with next; Active and standbyly notify described detection handover module 20 with described with next jumping;
Detect handover module 20, when the master who detects station address breaks down with next jumping, the state of current device is switched to standby, and put main the jumping with next and lost efficacy, standby next jumping comes into force, and notifies described reception forwarding module 30;
Detect handover module 20, when detecting its downlink failure and recovering, switches back the state of using of leading, will send to described user by described master with next jumping to the backhaul traffic of user side by network side;
Receive forwarding module 30, receive the notice that detects handover module 20, the flow that receives is forwarded to standby next jumping; Receive the notice that detects handover module 20, the flow that receives is forwarded to the master jumps with next.
When wherein, working as stand-by equipment:
Detect handover module 20, when the down link that detects its host apparatus breaks down, switch to the main state of using; When detecting the downlink failure recovery of host apparatus, switch back stand-by state; And with the active and standby described reception forwarding module 30 of state notifying of using;
Receive forwarding module 30, receive the flow that its host apparatus sends, and jump converting flow to corresponding user with next according to described master;
Configuration module 10 disposes main next jumping of using, and this is main with next jumping directed towards user address, jumps the backhaul traffic that described master is sent with SN according to described master with next and is transmitted to corresponding user.
Configuration module 10, when disposing different standby SN for each user, the backup SN of each user's correspondence is pointed in described standby next jumping; When disposing identical standby SN, for this backup SN is all pointed in standby next jumping that each user is provided with for each user.
Its operating process with aforesaid method is corresponding, and weak point repeats no more with reference to the narration of said method part.
In addition, what note that main usefulness among the present invention, stand-by equipment connection is same upper layer network, but might not be same node.In accompanying drawing of the present invention, illustrate and main be connected to same access node, but the present invention is not limited to this with, stand-by equipment.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard eliminating as to other embodiment, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of the appended claim of the present invention.
Claims (10)
1. downlink traffic switch protecting method is characterized in that when a user inserted backup, comprising:
It is standby next jumping of station address configuration that working traffic node (SN) is gone up, and described main standby SN with SN is pointed in described standby next jumping;
When described master detects its down link and breaks down with SN, switch to stand-by state, during routing convergence, will send to described standby SN to the backhaul traffic of user side by described standby next jumping, be transmitted to the user again by network side.
2. the method for claim 1 is characterized in that,
Described standby SN disposes main next jumping of using, and described master jumps the directed towards user address with next, and described standby SN jumps the backhaul traffic that described master is sent with SN according to described master with next and is transmitted to corresponding user.
3. the method for claim 1 is characterized in that,
Described main with SN be station address create standby next when jumping, the mode of employing associated virtual router redundance protocol (VRRP) when the active and standby switching of VRRP, switches to standby next jumping according to described master with the configuration flow on the SN;
Or the mode of employing link detection agreement, when the transition of described detection protocol status transfer DOWN to by UP, switch to standby next jumping with the configuration flow on the SN according to described master;
Or adopt the mode of priority, when next high jumping of priority can not arrive, standby next jumping that priority is low came into force, a plurality of standby next jump by different priority and confirm the order that comes into force;
Or adopt service quality mode redirected or tactful route to realize.
4. the method for claim 1 is characterized in that,
Described master also disposes main next jumping of using with SN, and this main jumping with next is pointed to described station address; Described standby SN also disposes standby next jumping, and the described main SN that uses is pointed in this standby next jumping;
When described master detects its downlink failure and recovers with SN, switches back to lead and use state, during routing convergence, described standby SN will send to described leading to the backhaul traffic of user side by described standby next jumping by network side and use SN;
Described master will send to described user by described master with next jumping to the backhaul traffic of user side by network side with SN.
5. the method for claim 1 is characterized in that,
When described master disposed different standby SN with SN for each user, the backup SN of each user's correspondence was pointed in described standby next jumping; When disposing identical standby SN, for this backup SN is all pointed in standby next jumping that each user is provided with for each user.
6. one kind is backed up repeater system, comprising: the standby SN and the access node of working traffic node (SN), correspondence, it is characterized in that,
Described master uses SN, is used to station address to create standby next jumping, and the standby SN of described master with the SN correspondence pointed in this standby next jumping; When detecting its down link and break down, switch to stand-by state, during routing convergence, will send to described standby SN to the backhaul traffic of user side by described standby next jumping by network side;
Described standby SN is used for the backhaul traffic that described master sends with SN is forwarded to described user.
7. system as claimed in claim 6 is characterized in that,
Described standby SN disposes main next jumping of using, and this is main with next jumping directed towards user address, jumps the backhaul traffic that described master is sent with SN according to described master with next and is transmitted to corresponding user.
8. system as claimed in claim 6 is characterized in that,
The described main SN that use, for station address create standby next when jumping, the mode of employing associated virtual router redundance protocol (VRRP) when the active and standby switching of VRRP, switches to standby next jumping according to described master with the configuration flow on the SN; Or the mode of employing link detection agreement, when the transition of described detection protocol status transfer DOWN to by UP, switch to standby next jumping with the configuration flow on the SN according to described master; Or adopt the mode of priority, when next high jumping of priority can not arrive, standby next jumping that priority is low came into force, a plurality of standby next jump by different priority and confirm the order that comes into force; Or employing QOS is redirected, the mode of tactful route realizes.
9. system as claimed in claim 6 is characterized in that,
The described main SN that uses, also dispose main next jumping of using, this main jumping with next is pointed to described station address, when detecting its downlink failure recovery, switch back the main state of using, will send to described user by described master with next jumping to the backhaul traffic of user side by network side;
Described standby SN also disposes standby next jumping, and the described main SN that uses is pointed in this standby next jumping; Described main when recovering, during routing convergence, will send to described master to the backhaul traffic of user side by described standby next jumping and use SN by network side with the SN downlink failure.
10. system as claimed in claim 6 is characterized in that,
Described master uses SN, and when disposing different standby SN for each user, the backup SN of each user's correspondence is pointed in described standby next jumping; When disposing identical standby SN, for this backup SN is all pointed in standby next jumping that each user is provided with for each user.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102054787A CN102045245A (en) | 2009-10-20 | 2009-10-20 | Method for protecting switching downlink flow rate during access to backup of user and backup forwarding system |
| PCT/CN2010/072720 WO2010145368A1 (en) | 2009-10-20 | 2010-05-13 | Protection method for a downlink flow handover when a user accesses a backup and backup forwarding system thereof |
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| CN2009102054787A CN102045245A (en) | 2009-10-20 | 2009-10-20 | Method for protecting switching downlink flow rate during access to backup of user and backup forwarding system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102148677A (en) * | 2010-02-10 | 2011-08-10 | 杭州华三通信技术有限公司 | Method for updating address resolution protocol table entries and core switch |
| CN102938732A (en) * | 2012-11-08 | 2013-02-20 | 浙江宇视科技有限公司 | Method and device for improving double-tunnel reliability |
| WO2014044088A1 (en) * | 2012-09-19 | 2014-03-27 | 中兴通讯股份有限公司 | L2tp network protection method, apparatus and system |
| CN104579953A (en) * | 2013-10-09 | 2015-04-29 | 中国移动通信集团广东有限公司 | A method for releasing routing, and a virtual router redundancy protocol backup group and network |
| CN104734867A (en) * | 2013-12-19 | 2015-06-24 | 中兴通讯股份有限公司 | Network service node failure processing method, device and system |
| CN108696417A (en) * | 2017-04-12 | 2018-10-23 | 中兴通讯股份有限公司 | Business switch method in backup network and device |
| CN112217718A (en) * | 2020-09-29 | 2021-01-12 | 北京东土军悦科技有限公司 | Service processing method, device, equipment and storage medium |
| CN113316117A (en) * | 2021-05-31 | 2021-08-27 | 武汉虹信科技发展有限责任公司 | TAU master-slave switching method and system |
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| CN101350773A (en) * | 2008-06-20 | 2009-01-21 | 中兴通讯股份有限公司 | Mobile packet network architecture as well as access method for equalizing load of a plurality of firewalls |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148677A (en) * | 2010-02-10 | 2011-08-10 | 杭州华三通信技术有限公司 | Method for updating address resolution protocol table entries and core switch |
| CN102148677B (en) * | 2010-02-10 | 2013-06-26 | 杭州华三通信技术有限公司 | Method for updating address resolution protocol table entries and core switch |
| WO2014044088A1 (en) * | 2012-09-19 | 2014-03-27 | 中兴通讯股份有限公司 | L2tp network protection method, apparatus and system |
| CN102938732B (en) * | 2012-11-08 | 2015-11-25 | 浙江宇视科技有限公司 | A kind of method and device improving double-tunnel reliability |
| CN102938732A (en) * | 2012-11-08 | 2013-02-20 | 浙江宇视科技有限公司 | Method and device for improving double-tunnel reliability |
| CN104579953A (en) * | 2013-10-09 | 2015-04-29 | 中国移动通信集团广东有限公司 | A method for releasing routing, and a virtual router redundancy protocol backup group and network |
| CN104579953B (en) * | 2013-10-09 | 2018-05-22 | 中国移动通信集团广东有限公司 | A kind of method, Virtual Router Redundancy Protocol backup group and network for issuing routing |
| CN104734867A (en) * | 2013-12-19 | 2015-06-24 | 中兴通讯股份有限公司 | Network service node failure processing method, device and system |
| CN104734867B (en) * | 2013-12-19 | 2019-05-03 | 中兴通讯股份有限公司 | Network service node fault handling method, apparatus and system |
| CN108696417A (en) * | 2017-04-12 | 2018-10-23 | 中兴通讯股份有限公司 | Business switch method in backup network and device |
| CN112217718A (en) * | 2020-09-29 | 2021-01-12 | 北京东土军悦科技有限公司 | Service processing method, device, equipment and storage medium |
| CN113316117A (en) * | 2021-05-31 | 2021-08-27 | 武汉虹信科技发展有限责任公司 | TAU master-slave switching method and system |
| CN113316117B (en) * | 2021-05-31 | 2022-06-07 | 武汉信科移动通信技术有限公司 | TAU master-slave switching method and system |
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