CN101022391A - RPR bidge redundancy protecting method and RPR bridge ring equipment - Google Patents
RPR bidge redundancy protecting method and RPR bridge ring equipment Download PDFInfo
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- CN101022391A CN101022391A CNA2007100056933A CN200710005693A CN101022391A CN 101022391 A CN101022391 A CN 101022391A CN A2007100056933 A CNA2007100056933 A CN A2007100056933A CN 200710005693 A CN200710005693 A CN 200710005693A CN 101022391 A CN101022391 A CN 101022391A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/427—Loop networks with decentralised control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40169—Flexible bus arrangements
- H04L12/40176—Flexible bus arrangements involving redundancy
- H04L12/40195—Flexible bus arrangements involving redundancy by using a plurality of nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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Abstract
A redundant-protecting method of RPR bridge includes setting one of two nodes formed by crossing RPR ring with common RPR ring to be master nod and another node to be standby node, carrying out device state control message interaction between said master node and standby node, deciding whether to carry out RPR bridge redundant protection rotation or not according to whether said master node and standby node on common RPR ring are connected through or not by said standby node when said state control message is received said standby node.
Description
Technical field
The present invention relates to network communications technology field, relate in particular to guard method of a kind of RPR bridge redundancy and RPR bridged ring equipment.
Background technology
Along with the metropolitan area network technology of various a new generations emerges in an endless stream, RPR (Resilient Packet Ring, stretch grouped data ring) technology is that metropolitan area network more and more uses with the validity of its advance, investment, the superiority of performance, the diversity of supporting business.
The RPR technology is a kind of loop network of being made up of Packet Switch Node, and single RPR ring exists uses limitation, for some application scenarios, needs a plurality of RPR rings to cooperate, and there is situation about intersecting in promptly a plurality of RPR rings.Two RPR that intersect encircle its mode that intersects to be had tangently and crossing, and there is Single Point of Faliure in the networking performance of RPR tangent rings, poor reliability, so best mode is an employing phase cross ring.
In the phase cross ring, the status of different rings is different, is commonly referred to as access ring near the RPR of user network ring, converges ring and be commonly referred to as near the RPR ring of IP backbone.For the convenience of describing, access ring also can be called subring, converges ring and also can be called main ring.In actual networking, a main ring can intersect with a plurality of subrings.The user inserts subring, then by main ring visit IP backbone network.In the Metro Ethernet networking, user's business upwards converges in the IP backbone network step by step by the RPR ring.
RPR phase cross ring provides ring protection switch function and topological functions such as automatic discovery fast, has improved the reliability that inserts.But a plurality of RPR ring transannulars loop problem can occur when intersecting.
As shown in Figure 1, the RPR bridge device is carried two layers of Ethernet message by the mode of Ethernet Over RPR, uses RPR expansion frame to transmit on the RPR ring.Because what RPR went up carrying is two layers of Ethernet message, if two points of transannular are not controlled, then loop can occur at two transannular nodes, is easy to occur broadcast storm, loop problem.As shown in Figure 2, RPR cross-ring bridge device 1 and RPR cross-ring bridge device 2 just can form corresponding loop among the figure.
In order to address the above problem, prior art is carried out link by STP (Spanning-Tree Protocol) or RSTP (RSTP) agreement and is reduced, generate loop-free minimum spanning tree, transmit message on two layers of Ethernet according to minimum spanning tree then, form loop to prevent double layer network communication.When occurring equipment or link failure on the double layer network, STP or RSTP can carry out minimum spanning tree calculating again, obtain a new forwarding tree, thereby after having guaranteed that fault takes place, protect professional operate as normal.
But this solution exists the convergence rate of following shortcoming: STP, RSTP slow, even RSTP also can only reach second rate of convergence level of level, makes service outage duration long, can't reach the carrier-class requirement.
By being constructed as a protection group with being positioned at two cross-ring bridge devices on the RPR bridged ring simultaneously, realize the redundancy protecting of RPR bridged ring network, can avoid the formation of loop.But this solution only is applicable to the transannular situation of two phase cross rings, and when a ring and many rings intersect at 2 points, and the both sides of a transannular node on ring adopt this scheme might form loop when all breaking down, and cause broadcast storm.
As shown in Figure 3, crossing with ring 1 and ring 3 as subring respectively as the ring 2 of main ring, ring 2 intersects at two nodes of A, B with ring 1, and ring 2 and ring 3 intersect at two nodes of C, D.When E point on the ring 2 and F point failure, because A, B two nodes are inaccessible on ring 2, in order to guarantee can to arrive between two nodes between the ring as far as possible, 2 of A, B can carry out the forwarding of transannular business, and promptly two node devices of A, B all are that migration is the Master state.In like manner, two nodes of C, D also might all move to Master state.Like this, can carry out broadcasting loop shown in Figure 3 to occur, thereby causing broadcast storm under the professional situation about transmitting of transannular at A, B, C, D transannular node.
Summary of the invention
The embodiment of the invention provides the guard method of a kind of RPR bridge redundancy, in order to avoid forming the broadcasting loop between bridged ring.The RPR bridge redundancy guard method that the embodiment of the invention provides may further comprise the steps:
A node in two nodes that described respectively RPR ring and described public RPR ring intersect is set to the master and uses node, and another node is set to secondary node; Between described main secondary node, carry out the mutual of equipment state control message with node and correspondence; When described secondary node receives described equipment state control message,, determine whether to carry out the protection of RPR bridge redundancy and switches according to described secondary node and corresponding mainly on described public RPR ring, whether be communicated with node.
The embodiment of the invention also provides a kind of RPR bridged ring equipment, and this equipment comprises: state set unit, message receiving element, status modifier unit and detecting unit, wherein,
State set unit, the master who is used to be provided with RPR bridged ring equipment is with state or stand-by state; In the time of one in described equipment two RPR bridged ring equipment that to be RPR ring intersect with a public RPR ring, make the state of described two RPR bridged ring equipment be respectively main with state and stand-by state;
The message receiving element is used for receiving equipment State Control message, and sends to described status modifier unit;
Detecting unit is used to detect described RPR bridged ring equipment, and whether RPR ring and another crossing RPR bridged ring equipment of public RPR ring with this equipment place are communicated with on described public RPR ring;
The status modifier unit is used for according to the equipment state control message that receives from described message receiving element, and the testing result that gets access to from described detecting unit, and indicative of said status is provided with the state that equipment is revised in the unit.
In the above embodiment of the present invention, intersect at respectively under the situation of two nodes in a plurality of subrings and a main ring, after secondary node is received equipment state control message, whether this secondary node at first detects on main ring and is communicated with node with corresponding master, if be not communicated with, then do not carry out state transition, but keep the stand-by state of this secondary node.Like this; when all break down in the both sides of the transannular node on the main ring; because these two transannular nodes can not be communicated with; the transannular node of stand-by state can not moved to the main state of using; therefore avoid the formation of loop; thereby avoided the formation of broadcast storm, and protected between bridged ring professionally, improved professional reliability.
Description of drawings
Fig. 1 is a RPR bridged ring network service schematic diagram in the prior art;
Fig. 2 is one of schematic diagram that RPR bridged ring network produces broadcast storm in the prior art;
Fig. 3 is two of RPR bridged ring network produces broadcast storm in the prior art a schematic diagram;
Fig. 4 is the method schematic diagram of the RPR bridge redundancy protection of the embodiment of the invention 1;
Fig. 5 is the structural representation of the RPR bridged ring equipment of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
The method of the RPR bridge redundancy protection the when embodiment of the invention is described 2 subrings and 1 main ring and intersected.As shown in Figure 3, ring 2 (main rings) intersect at two nodes of A, B (RPR bridged ring device A and RPR bridged ring equipment B) with ring 1 (subring), and ring 2 and ring 3 (subrings) intersect at two nodes of C, D (RPR bridged ring equipment C and RPR bridged ring equipment D).Ring 2 and ring 1 can be formed protection group 1, comprising bridged ring device A and bridged ring equipment B; To encircle 2 and form protection groups 2, comprising bridged ring equipment C and bridged ring equipment D with ring 3.Each equipment in the protection group all is provided with priority separately.
Referring to Fig. 4, be the method schematic diagram of the RPR bridge redundancy of embodiment of the invention protection.When E point on the ring 2 and F point failure, message is found in network system transmitting apparatus State Control message and topology protection, comprises the fault message of E and F node in the message, carries out following steps:
Step 401: when system topological changed, the RPR bridged ring equipment in protection group 1 and the protection group 2 receives equipment state control message respectively and message is found in the topology protection, and execution in step 402.
After step 402:RPR bridged ring equipment receives equipment state control message, upgrade RPR bridged ring network equipment status list, preserve current bridged ring network equipment state, and execution in step 403.
Step 403: the protection group is according to topological message that receives and the facility information in the Equipment Control message, judge whether the equipment state in the current RPR bridged ring network is Slave state or Master state in this protection group, if the Slave state, then execution in step 404; If the Master state, then execution in step 408.
Step 404: if the equipment in the current RPR bridged ring network is the Slave state, judge further then whether the bridged ring equipment of this protection group is communicated with in main ring (ring 2), if be not communicated with, then execution in step 405; If be communicated with, then execution in step 406.
In protection group 1, judge whether RPR bridged ring device A can communicate by letter on ring 2 with RPR bridged ring equipment B; In protection group 2, judge whether RPR bridged ring equipment C can communicate by letter on ring 2 with RPR bridged ring equipment D.Judgment mode can be:
In a protection group, certain RPR bridged ring equipment sends signals by ring 2 regular other equipment in this protection group, if at the appointed time receive the answer signal that the other side returns from encircling 2 in the interval, show that then two equipment are encircling on 2 and can communicate by letter, otherwise show that two equipment are encircling on 2 and can not communicate by letter; Perhaps
Message is found in the protection of RPR bridged ring equipment monitoring topology, according to the information in the topology protection discovery message of receiving, judges whether two bridged ring equipment can communicate by letter on ring 2.
Step 405:, then keep the Slave state of this equipment, and return step 401 if two RPR bridged ring equipment in the protection group are not communicated with on main ring.
In protection group 1,, keep the Slave state of the equipment in the protection group 1 this moment because therefore E, F two node failures on the ring 2 can not communicate by letter between A, B two nodes on the ring 2.In like manner, in protection group 2,, keep the Slave state of the equipment in the protection group 2 this moment because therefore E, F two node failures on the ring 2 can not communicate by letter between C, D two nodes on the ring 2.Like this, avoided A, B, C, D node all to cause the formation of loop for the Master state.
Step 406: if the equipment in the current RPR bridged ring network is the Slave state in the protection group; and in main ring, can communicate by letter with the host apparatus in this protection group; then when meeting the following conditions, execution in step 407 is the Master state with the Slave state transition of this equipment:
In the protection group at this equipment place, both can not find the Master status devices, also can not find the high Slave status devices of this equipment of priority ratio simultaneously.
Step 407: the equipment migration of this Slave state is the Master status devices, and returns step 410.
Step 408: if the protection group is according to the facility information in topological message that receives and the equipment state control message; the state of judging current device is the Master state; then when meeting the following conditions, execution in step 409 is the Slave state with the Master state transition of this equipment:
Find the high Master status devices of this equipment of priority ratio in the protection group under this equipment.
If do not satisfy this transition condition, then keep current Master state, and return step 401.
Step 409: if the equipment in the current RPR bridged ring network is the Master state in the protection group; but should also have the high Master status devices of priority ratio oneself in the protection group; current being configured to of the Master equipment of this low priority can be seized by the Master status devices of this high priority; but need to detect the time of this state continuance of this high priority Master status devices; can judgement surpass a pre-set threshold; if can; the Master status devices of the low priority in the then current RPR bridged ring network withdraws from the Master state; become the Slave status devices, and return step 410.
Because link-recovery, just UNICOM the time, have an of short duration conflict in the Master of two non-UNICOMs status devices, this moment, conflict very easily produced broadcast storm.By allowing the normal former fault point of firm recovery link, after delay a period of time, transmit the mode of broadcasting data messages again, avoid producing broadcast storm with this.
Step 410: the step that the successful execution of the equipment in the current RPR bridged ring network is above, judge whether the equipment state on the looped network changes, if then execution in step 411; Otherwise return step 401.
Step 411: the topological result's of the state change information of equipment and network variation is broadcasted away by the Master status devices at RPR bridged ring network, notify other nodes by information such as equipment state control messages, to upgrade the device address mapping relations information on each node, return step 401 then.
It is the protection flow process that example has been described the RPR bridge redundancy that present embodiment only intersects at two nodes respectively with 2 subrings and main ring, and two RPR bridge redundancies under the node situation of protection flow process and above-mentioned flow process intersect at to(for) a plurality of subrings more than 2 and main ring are similar.
An alternative embodiment of the invention provides a kind of RPR bridged ring equipment.
Referring to Fig. 5, the RPR bridged ring device structure schematic diagram that provides for the embodiment of the invention.This equipment comprises: state set unit, status modifier unit, message receiving element, detecting unit and protection group are provided with the unit.
Below in conjunction with each unit of this equipment, the process of utilizing this equipment to realize the protection of RPR bridge redundancy is described.
When a plurality of RPR rings intersected at two nodes with a public RPR ring, the protection group of the RPR equipment of two nodes that each RPR ring and public ring intersect was provided with the unit, and the RPR bridged ring equipment on these two nodes is formed a protection group;
State set unit on the RPR bridged ring equipment is provided with the protection group that the unit is provided with according to the protection group; the state of this RPR bridged ring equipment is set to main with state or stand-by state; making a RPR bridged ring equipment in this protection group is host apparatus, and another equipment is stand-by equipment.
When the message receiving element receives equipment state control message, this message is sent to the status modifier unit.Equipment state control message carries facility information, as device identification and/or priority attribute.
The status modifier unit obtains the current state of this equipment from state set unit after receiving equipment state control message.When the status modifier unit knows that the current state of this equipment is stand-by state, obtain the connection situation of two node devices on public RPR ring in this protection group to detecting unit, if be not communicated with, then indicating status is provided with the stand-by state that the unit keeps this equipment; If be communicated with, then according to the equipment state control message and the current state of equipment that receive, whether decision upgrades the state of this equipment, if need to upgrade, then indicating status is provided with the unit and carries out corresponding status modifier.For example, if the equipment current state is a stand-by state, and in affiliated protection group, do not find main equipment with state, when also can not find simultaneously the high Slave status devices of this equipment of priority ratio, then status modifier unit indicating status is provided with the unit stand-by state that equipment is current and is revised as the main state of using; If the equipment current state is main to use state, and when finding the higher host apparatus of priority in affiliated protection group, then status modifier unit indicating status is provided with the unit master that equipment is current and uses state.
The detection mode of detecting unit comprises:
1) detecting unit of RPR bridged ring equipment is by another RPR bridged ring equipment sending message in the protection group under public this equipment of RPR hoop, and waits for that the other side replys; If detecting unit does not receive replying of the other side from public RPR ring at the appointed time, judge that then two RPR bridged ring equipment in this protection group can not be communicated with on public RPR ring; Otherwise, judge that two RPR bridged ring equipment in this protection group can be communicated with on public RPR ring.
2) detecting unit of RPR bridged ring equipment receives topological message, and judges according to the topological message that receives whether two RPR bridged ring equipment in this protection group are communicated with on public RPR ring.
In sum, the embodiment of the invention is by intersecting at respectively under the situation of two nodes in a plurality of subrings and a main ring, when secondary node is received equipment state control message, make this secondary node at first detect on main ring whether to be communicated with node and determine whether to carry out state transition with corresponding master.If be not communicated with; then do not carry out state transition; but keep the stand-by state of this secondary node, like this, when all break down in the both sides of the transannular node on the main ring; these two transannular nodes can not be communicated with; the transannular node of stand-by state can not moved to the main state of using, and therefore avoids the formation of loop, thereby has avoided the formation of broadcast storm; protect business between bridged ring, improved professional reliability.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1, a kind of RPR bridge redundancy guard method, the RPR bridge redundancy protection process when being applied at least two RPR ring and intersecting at two nodes with a public RPR ring respectively is characterized in that, may further comprise the steps:
A node in two nodes that described respectively RPR ring and described public RPR ring intersect is set to the master and uses node, and another node is set to secondary node;
Between described main secondary node, carry out the mutual of equipment state control message with node and correspondence;
When described secondary node receives described equipment state control message,, determine whether to carry out the protection of RPR bridge redundancy and switches according to described secondary node and corresponding mainly on described public RPR ring, whether be communicated with node.
2, the method for claim 1, it is characterized in that, when secondary node receives that described equipment state is controlled message, judge whether this secondary node is communicated with node with corresponding leading on described public RPR ring, if be not communicated with, then keep the stand-by state of this secondary node; Otherwise, when satisfying the state transition condition, be the main node of using with described secondary node migration.
3, the method for claim 1 is characterized in that, described secondary node is used node by detecting corresponding master, or the topological message by receiving, and judges whether can be communicated with on described public RPR ring with node with this master.
4, method as claimed in claim 3 is characterized in that, described secondary node is judged the process that whether is communicated with between the two by detecting the described main node of using, and comprises step:
Described secondary node sends message by the described master of described public RPR hoop with node, and waits for that this master replys with node;
If this master at the appointed time by described RPR ring echo reply message, judges then that described secondary node and described master can not be communicated with on described public RPR ring with node with node; Otherwise, judge that described secondary node and described master can be communicated with on described public RPR ring with node.
5, the method for claim 1 is characterized in that, respectively described RPR ring and two nodes that described public RPR ring intersects is formed the protection group; Two nodes in each protection group are set to main respectively with node and secondary node;
When secondary node is received described status of equipment control message,, then keep the stand-by state of this secondary node if leading in this secondary node and the affiliated protection group is not communicated with on described public RPR ring with node.
6, a kind of RPR bridged ring equipment is characterized in that, comprises state set unit, message receiving element, status modifier unit and detecting unit, wherein,
State set unit, the master who is used to be provided with RPR bridged ring equipment is with state or stand-by state; In the time of one in described equipment two RPR bridged ring equipment that to be RPR ring intersect with a public RPR ring, make the state of described two RPR bridged ring equipment be respectively main with state and stand-by state;
The message receiving element is used for receiving equipment State Control message, and sends to described status modifier unit;
Detecting unit is used to detect described RPR bridged ring equipment, and whether RPR ring and another crossing RPR bridged ring equipment of public RPR ring with this equipment place are communicated with on described public RPR ring;
The status modifier unit is used for according to the equipment state control message that receives from described message receiving element, and the testing result that gets access to from described detecting unit, and indicative of said status is provided with the state that equipment is revised in the unit.
7, RPR bridged ring equipment as claimed in claim 6, it is characterized in that, when described status modifier unit receives described equipment state control message, obtain the current state of this RPR bridged ring equipment to described state set unit, and obtain testing result to described detecting unit;
If the current state of this RPR bridged ring equipment is a stand-by state, and the testing result that gets access to shows that this RPR bridged ring equipment that is in stand-by state is in main RPR bridged ring equipment with state and is not communicated with corresponding on described public RPR ring, then indicative of said status is provided with the stand-by state that the unit keeps this stand-by equipment.
8, RPR bridged ring equipment as claimed in claim 6 is characterized in that, described detecting unit is by the RPR bridged ring equipment sending message of described public RPR hoop correspondence, and wait the other side replys; If described detecting unit does not receive from described public RPR ring at the appointed time and replys, judge that then both can not be communicated with on described public RPR ring; Otherwise, judge that both can be communicated with on described public RPR ring;
Perhaps, described detecting unit receives topological message, and judges described RPR bridged ring equipment according to the topological message that receives, and whether another RPR bridged ring equipment that intersects with the RPR ring and the public RPR ring at this equipment place is communicated with on described public RPR ring.
9, RPR bridged ring equipment as claimed in claim 6 is characterized in that, also comprises:
The protection group is provided with the unit, is used for described RPR bridged ring equipment, is set to the protection group with this equipment place RPR ring and another RPR bridged ring equipment that public RPR ring intersects;
Described state set unit is provided with the protection group that the unit is provided with according to described protection group, is set to the state of two RPR bridged ring equipment in this protection group main with state and stand-by state respectively;
Described status modifier unit is received when described equipment state is controlled message, is obtained the current state of this RPR bridged ring equipment to described state set unit, and obtain testing result to described detecting unit;
If the current state of this RPR bridged ring equipment is a stand-by state, and the testing result that gets access to shows described RPR bridged ring equipment, be communicated with on described public RPR ring with another RPR bridged ring equipment that the RPR ring and the public RPR ring at this equipment place intersect, then indicative of said status is provided with the stand-by state that the unit keeps this equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100056933A CN100461739C (en) | 2007-03-13 | 2007-03-13 | RPR bidge redundancy protecting method and RPR bridge ring equipment |
| PCT/CN2008/070327 WO2008110085A1 (en) | 2007-03-13 | 2008-02-19 | Rpr bridge redundancy protection method, rpr bridge ring device and rpr bridge ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100056933A CN100461739C (en) | 2007-03-13 | 2007-03-13 | RPR bidge redundancy protecting method and RPR bridge ring equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN101022391A true CN101022391A (en) | 2007-08-22 |
| CN100461739C CN100461739C (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100056933A Expired - Fee Related CN100461739C (en) | 2007-03-13 | 2007-03-13 | RPR bidge redundancy protecting method and RPR bridge ring equipment |
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| CN (1) | CN100461739C (en) |
| WO (1) | WO2008110085A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008110085A1 (en) * | 2007-03-13 | 2008-09-18 | Huawei Technologies Co., Ltd. | Rpr bridge redundancy protection method, rpr bridge ring device and rpr bridge ring |
| CN101197747B (en) * | 2007-12-14 | 2010-07-28 | 北京国电智深控制技术有限公司 | System and method for industrial real-time control Ethernet redundancy fault-tolerant network |
| CN102546345A (en) * | 2011-12-30 | 2012-07-04 | Ut斯达康通讯有限公司 | Method for realizing cross-ring protection of resilient packet ring by use of spanning tree protocol |
| CN106453020A (en) * | 2016-10-24 | 2017-02-22 | 北京爱其科技有限公司 | Neural network loop control method applied to intelligent control system |
| CN107547331A (en) * | 2017-09-25 | 2018-01-05 | 新华三技术有限公司 | The forwarding state control method and device of RPR nodes in RPR intersecting rings |
| CN107547330A (en) * | 2017-08-31 | 2018-01-05 | 新华三技术有限公司 | A kind of method and node device of transmission services data |
| CN109617777A (en) * | 2018-12-24 | 2019-04-12 | 新华三技术有限公司 | A kind of the business datum retransmission method and device of RPR intersecting ring |
| CN109981454A (en) * | 2019-03-29 | 2019-07-05 | 中国人民银行清算总中心 | The broadcast controlling method and device of dynamic routing broadcasting packet |
| CN111510364A (en) * | 2020-03-31 | 2020-08-07 | 新华三信息安全技术有限公司 | Message forwarding method and system |
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| EP1324543A1 (en) * | 2001-12-26 | 2003-07-02 | Alcatel | Method to protect RPR networks of extended topology, in particular RPR ring to ring and meshed backbone networks |
| CN100426775C (en) * | 2004-10-26 | 2008-10-15 | 中兴通讯股份有限公司 | Tangent ring bridge method for RPR |
| CN100466582C (en) * | 2005-06-20 | 2009-03-04 | 杭州华三通信技术有限公司 | Cross interconnection method for RPR and cross site, cross RPR |
| CN1941730A (en) * | 2005-09-26 | 2007-04-04 | 华为技术有限公司 | Method for protecting RPR bridge redundancy |
| CN100401712C (en) * | 2005-10-14 | 2008-07-09 | 杭州华三通信技术有限公司 | Fault treating method for phase switching loop of automatic protection system of Ethernet |
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| CN100461739C (en) * | 2007-03-13 | 2009-02-11 | 华为技术有限公司 | RPR bidge redundancy protecting method and RPR bridge ring equipment |
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- 2007-03-13 CN CNB2007100056933A patent/CN100461739C/en not_active Expired - Fee Related
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2008
- 2008-02-19 WO PCT/CN2008/070327 patent/WO2008110085A1/en active Application Filing
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2008110085A1 (en) * | 2007-03-13 | 2008-09-18 | Huawei Technologies Co., Ltd. | Rpr bridge redundancy protection method, rpr bridge ring device and rpr bridge ring |
| CN101197747B (en) * | 2007-12-14 | 2010-07-28 | 北京国电智深控制技术有限公司 | System and method for industrial real-time control Ethernet redundancy fault-tolerant network |
| CN102546345A (en) * | 2011-12-30 | 2012-07-04 | Ut斯达康通讯有限公司 | Method for realizing cross-ring protection of resilient packet ring by use of spanning tree protocol |
| CN106453020A (en) * | 2016-10-24 | 2017-02-22 | 北京爱其科技有限公司 | Neural network loop control method applied to intelligent control system |
| CN106453020B (en) * | 2016-10-24 | 2019-07-02 | 北京爱其科技有限公司 | A kind of neural network ring control method applied to intelligence control system |
| CN107547330A (en) * | 2017-08-31 | 2018-01-05 | 新华三技术有限公司 | A kind of method and node device of transmission services data |
| CN107547331A (en) * | 2017-09-25 | 2018-01-05 | 新华三技术有限公司 | The forwarding state control method and device of RPR nodes in RPR intersecting rings |
| CN109617777A (en) * | 2018-12-24 | 2019-04-12 | 新华三技术有限公司 | A kind of the business datum retransmission method and device of RPR intersecting ring |
| CN109617777B (en) * | 2018-12-24 | 2021-08-20 | 新华三技术有限公司 | Service data forwarding method and device for RPR (resilient packet ring) intersected ring |
| CN109981454A (en) * | 2019-03-29 | 2019-07-05 | 中国人民银行清算总中心 | The broadcast controlling method and device of dynamic routing broadcasting packet |
| CN111510364A (en) * | 2020-03-31 | 2020-08-07 | 新华三信息安全技术有限公司 | Message forwarding method and system |
| CN111510364B (en) * | 2020-03-31 | 2022-02-22 | 新华三信息安全技术有限公司 | Message forwarding method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008110085A1 (en) | 2008-09-18 |
| CN100461739C (en) | 2009-02-11 |
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