CN102404176B - A kind of method of transmitting service flows in looped network and device - Google Patents
A kind of method of transmitting service flows in looped network and device Download PDFInfo
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- CN102404176B CN102404176B CN201010288932.2A CN201010288932A CN102404176B CN 102404176 B CN102404176 B CN 102404176B CN 201010288932 A CN201010288932 A CN 201010288932A CN 102404176 B CN102404176 B CN 102404176B
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Abstract
The invention discloses a kind of method of transmitting service flows in looped network, described method comprises: in looped network, set up tunnel between preassigned host node and other each nodes, and the Business Stream passing through will transmit in set up tunnel transmits in described looped network.The invention also discloses a kind of device of transmitting service flows in looped network; solve the problem of N square on the one hand, be easy to expansion, decrease the maintenance of a large amount of LSP Protection path and set up cost on the other hand; effectively can improve the efficiency of looped network transport service stream, and can economize on resources.
Description
Technical field
The present invention relates to transmission and the resist technology of ring operational line, particularly relate to a kind of method and device of transmitting service flows in looped network.
Background technology
For existing looped network, the transmission of its business and protection mainly contain two kinds of methods: a kind of is transmission based on tunnel and guard method, looped network is often set up between any two nodes two tunnels of both forward and reverse directions, pass through these set up tunnels and realize multiple label switched path (LSP, LabelSwitchingPath) transmission and the protection of business is gone up, for this kind of method, need all to set up tunnel between every two nodes on looped network, if ring exists N (N be greater than 1 integer) individual node, the tunnel number set up then is needed to be N*N/2, bring the problem of N square, not easily expand, another kind method is forwarding based on LSP and protection, working LSP is set up between each node of looped network, and every bar working LSP sets up a corresponding protection LSP, need to set up the protection that a large amount of protection LSP could realize the transmission of LSP business, add maintenance cost and the maintenance workload of LSP in looped network business transport process.
Summary of the invention
In view of this, main purpose of the present invention is the method and the device that provide a kind of transmitting service flows in looped network, to solve the not easily expansion and the too many problem of LSP that occur in the transmission of LSP business on existing looped network and protection.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method of transmitting service flows in looped network, described method comprises: in looped network, set up tunnel between preassigned host node and other each nodes, and the Business Stream passing through will transmit in set up tunnel transmits in described looped network.
In such scheme, described set up tunnel before, described method also comprises: in each node of described looped network, specifies two host nodes in advance, and arranges specified two host nodes secondary node each other.
In such scheme, in looped network, set up tunnel between preassigned host node and other each nodes, be specially: in described looped network, set up bidirectional tunnel between preassigned host node and other each nodes.
In such scheme; describedly set up bidirectional tunnel; be specially: in described looped network between preassigned host node and other each nodes; set up bidirectional tunnel clockwise with counterclockwise; and in set up bidirectional tunnel, specify the work tunnel that is used for transport service stream and the protection tunnel for the transport service stream when described work tunnel fault.
In such scheme, pass through the process of set up tunnel transport service stream, specifically comprise: for the Business Stream that will forward, the pressed on ring ingress of described Business Stream is by the work tunnel between self and described preassigned host node or protect tunnel, and the Business Stream that will transmit is sent to host node; Pass through the work tunnel between self and the lower ring egress of described Business Stream by host node again or protect tunnel, the Business Stream that will transmit is sent to described lower ring egress.
In such scheme, after the described Business Stream that will transmit is sent to described host node, and before the Business Stream that described host node will transmit sends, described method also comprises: the label of described host node to described Business Stream forward-path carries out exchange process.
In such scheme, pass through the process of set up tunnel transport service stream, specifically comprise: when the work tunnel of described Business Stream is normal, by described work tunnel transport service stream; Described Business Stream work tunnel fault and protection tunnel normal time, by described protection tunnel transport service stream.
In such scheme; pass through the process of set up tunnel transport service stream; also comprise: when the work tunnel of described Business Stream and the protection equal fault in tunnel or host node fault corresponding to described Business Stream, the secondary node that described Business Stream is switched to described host node is transmitted.
Present invention also offers a kind of device of transmitting service flows in looped network, described device comprises: set up unit and delivery unit, wherein, sets up unit, for setting up tunnel between host node preassigned in looped network and other each nodes; Delivery unit, is transmitted in described looped network for the Business Stream that will be transmitted by the described tunnel setting up unit foundation.
In such scheme, described device also comprises: dispensing unit, in each node of described looped network, specifies two host nodes in advance, and arranges specified two host nodes secondary node each other.
In such scheme; describedly set up unit; specifically for; between the preassigned host node of described dispensing unit and other each nodes; set up bidirectional tunnel clockwise with counterclockwise; and in set up bidirectional tunnel, specify the work tunnel that is used for transport service stream and the protection tunnel for the transport service stream when described work tunnel fault.
In such scheme; described delivery unit; specifically for; for the Business Stream that will forward; by the work tunnel between the pressed on ring ingress of described Business Stream and the preassigned host node of described dispensing unit or protect tunnel and the work tunnel between described host node and the lower ring egress of described Business Stream or protect tunnel, the Business Stream that will transmit is sent to described lower ring egress from described pressed on ring ingress.
In such scheme, described delivery unit, comprises processing module, for when the described Business Stream that will transmit is sent to described host node, carries out exchange process to the label of described Business Stream forward-path.
In such scheme, described delivery unit, specifically for, when the work tunnel of described Business Stream is normal, by described work tunnel transport service stream; Described Business Stream work tunnel fault and protection tunnel normal time, by described protection tunnel transport service stream; When the work tunnel of described Business Stream and the protection equal fault in tunnel or host node fault corresponding to described Business Stream, the secondary node that described Business Stream is switched to described host node is transmitted.
The method of transmitting service flows in looped network provided by the invention and device, by setting up tunnel between preassigned host node and other each nodes, and pass through transmitting service flows in looped network described in set up tunnel, do not need on the one hand on looped network, between every two nodes, all set up work tunnel and protection tunnel, solve the problem of N square, be easy to expansion; On the other hand with tunnel style transport service stream, multiple LSP business can converge to the transmission of set up tunnel, decreases the maintenance of a large amount of LSP Protection path and sets up cost; The present invention effectively can improve the efficiency of looped network transport service stream, and can economize on resources.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of the system of transmitting service flows in looped network of the present invention;
Fig. 2 is the transmission schematic diagram of normal looped network;
The transmission schematic diagram of looped network when Fig. 3 is work tunnel fault;
The transmission schematic diagram of looped network when Fig. 4 is host node fault;
Embodiment
Basic thought of the present invention is: in looped network; designated host in advance; and bidirectional tunnel is set up between preassigned host node and other each nodes, pass through the defencive function that set up bidirectional tunnel realizes in the transmission of Business Stream and Business Stream transport process.
The method of transmitting service flows in looped network of the present invention, mainly comprises: in looped network, set up tunnel between preassigned host node and other each nodes, and the Business Stream passing through will transmit in set up tunnel transmits in described looped network.
Wherein, before setting up tunnel, described method also comprises: in each node of described looped network, specifies two host nodes in advance, and arranges specified two host nodes secondary node each other.
Particularly, in all nodes on from looped network, select two nodes, be appointed as host node, and be the relation of backup mutually between these two host nodes, when namely a host node breaks down wherein, then will need the Business Stream transmitted by this host node, and be switched to another host node and transmit.
In same looped network during preassigned two host nodes, two nodes that general chosen position is relatively far away or in described looped network, be just in time in relative position two nodes as preassigned host node, such as, for looped network as shown in Figure 2, node C wherein and node G can be appointed as host node in advance.So, the time required for transmitting service flows in looped network can be reduced, improve transmission efficiency.In addition, also can according to the needs of practical application, in selection looped network, any suitable node is as described host node.
Specify two host nodes in advance and two specified host nodes process such as secondary node is each other set, can by configuring corresponding appointed information in the transmitting of node each in described looped network and backup host node information realizes.
Wherein, in looped network, set up tunnel between preassigned host node and other each nodes, be specially: in described looped network, set up bidirectional tunnel between preassigned host node and other each nodes.
Particularly; in looped network between preassigned host node and other each nodes; set up bidirectional tunnel clockwise with counterclockwise; and in set up bidirectional tunnel, specify the work tunnel that is used for transport service stream and the protection tunnel for the transport service stream when described work tunnel fault.
Like this, if have N number of node in current looped network, then according to the method described above, the tunnel number of the foundation needed altogether is (N-2) * 4, wherein, N is integer and N > 2, can greatly reduce the tunnel number needing to set up, thus avoid the problem of N square, be conducive to expansion.
Such as, looped network as shown in Figure 2, establishes 24 tunnels altogether between the host node C specified and host node G and other each node, clockwise tunnel can be specified to be work tunnel and specify anticlockwise protecting tunnel tunnel.
Here, in looped network, between preassigned two host nodes and other each nodes, set up the method for bidirectional tunnel, the method setting up tunnel between existing node can be adopted, repeat no more in the present invention.
Here, the process in assigned work tunnel and protection tunnel, can specify the work tunnel of each node by being all configured in the transmitting of nodes all in described looped network and protecting the information in tunnel to realize.
Wherein, pass through the process of set up tunnel transport service stream, specifically comprise: for the Business Stream that will forward, the pressed on ring ingress of described Business Stream is by the work tunnel between self and described preassigned host node or protect tunnel, and the Business Stream that will transmit is sent to host node; Pass through the work tunnel between self and the lower ring egress of described Business Stream by host node again or protect tunnel, the Business Stream that will transmit is sent to described lower ring egress.
Here, after designated host in advance, each node of described looped network also can carry out business-binding operation.Particularly, by the mode of static configuration, be configured for specify each host node the information of responsible business in each node of described loopback; Or, the transmission demand information of binding information between each business and each host node or each business is configured in advance at the pressed on ring ingress of each business, by the pressed on ring ingress of described each business according to these preconfigured information of self, in preassigned two host nodes, select the host node being applicable to transmitting current business flow.
Like this, when being convenient to transmit multiple business stream in described looped network at the same time, the host node of each Business Stream respectively by its correspondence can be transmitted, so, just effectively can improve the efficiency of looped network transport service stream.
Wherein, after the Business Stream that will transmit is sent to host node, and before the Business Stream that host node will transmit sends, described method also comprises: the label of described host node to described Business Stream forward-path carries out exchange process.
Here, the Tag switching processing procedure of described Business Stream forward-path, specifically can comprise: the outer layer tunnel label ejecting current tunnel, Tag switching be carried out to the LSP layer of the inside, then encapsulates the outer layer tunnel label in the next tunnel for transmitting described Business Stream.Wherein, above-mentioned LSP layer Tag switching can adopt existing correlation technique to realize, and does not repeat them here.
Wherein, when the work tunnel of described Business Stream is all normal, by described work tunnel transport service stream; Described Business Stream work tunnel fault and protection tunnel normal time, by described protection tunnel transport service stream.
Wherein, when the work tunnel of described Business Stream and the protection equal fault in tunnel or host node fault corresponding to described Business Stream, by the pressed on ring ingress of described Business Stream, the secondary node that described Business Stream is switched to described host node can be transmitted.
Wherein, the secondary node of described host node is identical with the function and efficacy of above-mentioned host node; the process being transmitted described Business Stream by the secondary node of described host node is identical; difference is; by the work tunnel between the pressed on ring ingress of described Business Stream and the secondary node of described host node or protect the work tunnel between the secondary node of tunnel and described host node and the lower ring egress of described Business Stream or protect tunnel, complete the transmission of described Business Stream.
After the Business Stream that will transmit is sent to the secondary node of described host node, and before the Business Stream that the secondary node of described host node will transmit sends, the secondary node of described host node also carries out exchange process to the label of described Business Stream forward-path, detailed process is same as described above, does not repeat them here.
Especially; if the pressed on ring ingress of described Business Stream is same node with the host node corresponding to this Business Stream; described host node directly passes through the work tunnel between self and the lower ring egress of this Business Stream or protects tunnel, described Business Stream is sent to the lower ring egress of this Business Stream.Equally, when work tunnel is normal, the general work tunnel that adopts transmits, and when work tunnel fault, adopts corresponding protection tunnel to transmit.
If the lower ring egress of described Business Stream is same node with the host node corresponding to this Business Stream; the pressed on ring ingress of described Business Stream directly passes through the work tunnel between self host node corresponding with this Business Stream or protects tunnel; described Business Stream is sent to the lower ring egress of this Business Stream, completes the transmission of described Business Stream in described looped network.Equally, when work tunnel is normal, the general work tunnel that adopts transmits, and when work tunnel fault, adopts corresponding protection tunnel to transmit.
For realizing said method, present invention also offers a kind of device of transmitting service flows in looped network, as shown in Figure 1, mainly comprise: set up unit 11 and delivery unit 12, wherein, set up unit 11, for setting up tunnel between host node preassigned in looped network and other each nodes; Delivery unit 12 is transmitted in described looped network for the Business Stream that will be transmitted by the described tunnel setting up unit 11 foundation.
Wherein, described device also comprises: dispensing unit 13, in each node of described looped network, specifies two host nodes in advance, and arranges specified two host nodes secondary node each other.
Describedly set up unit 11; specifically between the preassigned host node of described dispensing unit 13 and other each nodes; set up bidirectional tunnel clockwise with counterclockwise; and in set up bidirectional tunnel, specify the work tunnel that is used for transport service stream and the protection tunnel for the transport service stream when described work tunnel fault.
Described delivery unit 12; specifically for; for the Business Stream that will forward; by the work tunnel between the pressed on ring ingress of described Business Stream and the preassigned host node of described dispensing unit or protect tunnel and the work tunnel between described host node and the lower ring egress of described Business Stream or protect tunnel, the Business Stream that will transmit is sent to described lower ring egress from described pressed on ring ingress.
Described delivery unit 12 can also comprise processing module 121, for when the described Business Stream that will transmit is sent to described host node, carries out exchange process to the label of described Business Stream forward-path.
Described delivery unit 12 specifically for, when the work tunnel of described Business Stream is normal, by described work tunnel transport service stream; Described Business Stream work tunnel fault and protection tunnel normal time, by described protection tunnel transport service stream; When the work tunnel of described Business Stream and the protection equal fault in tunnel or host node fault corresponding to described Business Stream, the secondary node that described Business Stream is switched to described host node is transmitted.
Said apparatus of the present invention, can be arranged in looped network, by being connected with node each in looped network and interactive information, realizing above-mentioned transport process, also said apparatus of the present invention can be arranged in each node in looped network, realize above-mentioned transport process.
Below in conjunction with embodiment, specific implementation of the present invention is described in further details.
Looped network as shown in Figure 2, includes A, B, C, D, E, F, G, H eight nodes, realizes the process that this looped network transmits LSP Business Stream, specifically can comprise following flow process by method of the present invention:
Step 1: specified node C and node G is the host node of described looped network in advance, and the work tunnel set up respectively between node A, B, D, E, F, H and this two host node C and G and protect tunnel, as shown in Figure 2, wherein, solid line represents work tunnel, dotted line represents protection tunnel, establishes 24 tunnels altogether;
Step 2: on looped network, node A receives two LSP Business Streams needing to forward from net, and be Business Stream Lad and Business Stream Laf respectively, wherein, Business Stream Lad needs to be transmitted by host node C, and Business Stream Laf needs to be transmitted by host node G.
Here, before transport service stream, two host nodes can be specified to be responsible for the business transmitted.Particularly, can by configuring corresponding appointed information in the transmitting of each host node, and other each nodes on looped network also configure corresponding appointed information, thus the Business Stream that will be able to be forwarded by the host node transmission of specifying.
Or, can by node A, namely the pressed on ring ingress of Business Stream selects the host node being applicable to current each Business Stream.
Step 3: as shown in Figure 2, when current working channel is all normal, node A, by the work tunnel between the lower ring egress D of the work tunnel between self and host node C and host node C and Business Stream Lad, sends Business Stream Lad to node D; Node A, by the work tunnel between the lower ring egress F of work tunnel between self and host node G and host node G and Business Stream Laf, sends Business Stream Laf to node F.
Particularly, by the work tunnel between the lower ring egress D of the work tunnel between self and host node C and host node C and Business Stream Lad, Business Stream Lad is sent to the process of node D, specifically can comprise: when the work tunnel (A → B → C) between node A and host node C is normal, Business Stream Lad is pressed in the work tunnel (A → B → C) between self and host node C by node A, is sent to host node C; After the label of host node C to Business Stream Lad forward-path carries out exchange process, when work tunnel (C → D) between self and the lower ring egress D of Business Stream Lad is normal, forward-path label is pressed into work tunnel (C → D) through the Business Stream Lad exchanging process, send node D to, afterwards, node D carries out follow-up process to Business Stream Lad;
By the work tunnel between the lower ring egress F of the work tunnel between self and host node G and host node G and Business Stream Laf, Business Stream Laf is sent to the process of node F, specifically can comprise: when the work tunnel (A → H → G) between node A and host node G is normal, Business Stream Laf is pressed in this work tunnel (A → H → G) by node A, is sent to host node G; After the label of host node G to Business Stream Laf forward-path carries out exchange process, when work tunnel G → F between self and the lower ring egress F of Business Stream Laf is normal, forward-path label is pressed into work tunnel (G → F) through the Business Stream Laf exchanging process, send node F to, afterwards, node F carries out follow-up process to Business Stream Laf.
The Tag switching processing procedure of Business Stream Lad forward-path mainly comprises: host node C ejects the outer layer tunnel label of current tunnel (A → B → C) in this Business Stream Lad, Tag switching is carried out to the LSP layer of the inside, encapsulating the outer layer tunnel label in the next tunnel (C → D) for transmitting described Business Stream again, completing its Tag switching processing procedure.The Tag switching processing procedure of Business Stream Laf forward-path is identical with said process, and difference has been come by host node G.
Here, the subsequent treatment that the lower ring egress of Business Stream carries out Business Stream, mainly can comprise: the lower ring egress of Business Stream is after receiving Business Stream, first the outer layer tunnel label in Business Stream is ejected, eject its LSP layer label again, then, carry out follow-up Business Processing operation according to message information wherein, such as, forward.
Step 4: as shown in Figure 3, in work tunnel (A → B → C) and (G → F) breaks down, node A, by the protection tunnel between self and host node C and the work tunnel between host node C and node D, sends Business Stream Lad to node D; Node A, by the work tunnel between self and host node G and the work tunnel between host node G and node F, sends Business Stream Laf to node F.
Particularly, for Business Stream Lad, Business Stream Lad is pressed in the protection tunnel (A → H → G → F → E → D → C) between self and host node C by node A, is sent to host node C; Afterwards, identical with step 3, continue through original, between host node C and node D work tunnel (C → D), send the Business Stream Lad through Tag switching process to node D;
For Business Stream Laf, first, identical with step 3, Business Stream Lad is still pressed in the work tunnel (A → H → G) between self and host node G by node A, is sent to host node G; Then, Business Stream Laf is pressed in the protection tunnel (G → H → A → B → C → D → E → F) between self and node F, sends node F to after carrying out exchange process by the label of host node G to Business Stream Laf forward-path;
Step 5: when one of them host node of current looped network breaks down, need the business transmitted by host node C, be all switched to host node G to transmit.As shown in Figure 4, when host node C breaks down, replace host node C by another host node G, Business Stream Lad needs to be switched to host node G and transmits, and can avoid the single point failure of host node like this and affect the forwarding of business on ring; Because host node G is normal, Business Stream Laf can also according to the method transmission of above-mentioned steps 3 or step 4.
Particularly, can according to the method for above-mentioned steps 3, node A, by the work tunnel between self and host node G and the work tunnel between host node G and node D (G → F → E → D), sends Business Stream Lad to node D; Or; can according to the method for above-mentioned steps 4; when work tunnel GF breaks down; node A, by the work tunnel between self and host node G and the protection tunnel between host node G and node D (G → H → A → B → C → D), sends Business Stream Lad to node D.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a method for transmitting service flows in looped network, is characterized in that, described method comprises:
Tunnel is set up between preassigned host node and other each nodes in looped network, and the Business Stream passing through will transmit in set up tunnel transmits in described looped network, wherein, pass through the process of set up tunnel transport service stream, specifically comprise: for the Business Stream that will forward, the tunnel of pressed on ring ingress by setting up between self and described preassigned host node of described Business Stream, the Business Stream that will transmit is sent to host node; Again by the tunnel of host node by setting up between self and the lower ring egress of described Business Stream, the Business Stream that will transmit is sent to described lower ring egress.
2. the method for transmitting service flows in looped network according to claim 1, is characterized in that, described set up tunnel before, described method also comprises:
In each node of described looped network, specify two host nodes in advance, and specified two host nodes secondary node is each other set.
3. the method for transmitting service flows in looped network according to claim 1, is characterized in that, sets up tunnel, be specially in looped network between preassigned host node and other each nodes:
Bidirectional tunnel is set up between preassigned host node and other each nodes in described looped network.
4. the method for the transmitting service flows in looped network according to any one of claims 1 to 3, is characterized in that, sets up bidirectional tunnel, is specially:
In described looped network between preassigned host node and other each nodes; set up bidirectional tunnel clockwise with counterclockwise; and in set up bidirectional tunnel, specify the work tunnel that is used for transport service stream and the protection tunnel for the transport service stream when described work tunnel fault.
5. the method for transmitting service flows in looped network according to claim 1, is characterized in that, after the described Business Stream that will transmit is sent to described host node, and before the Business Stream that described host node will transmit sends, described method also comprises:
The label of described host node to described Business Stream forward-path carries out exchange process.
6. the method for transmitting service flows in looped network according to claim 4, is characterized in that, passes through the process of set up tunnel transport service stream, specifically comprises:
When the work tunnel of described Business Stream is normal, by described work tunnel transport service stream; Described Business Stream work tunnel fault and protection tunnel normal time, by described protection tunnel transport service stream.
7. the method for transmitting service flows in looped network according to claim 4, is characterized in that, passes through the process of set up tunnel transport service stream, also comprises:
When the work tunnel of described Business Stream and the protection equal fault in tunnel or host node fault corresponding to described Business Stream, the secondary node that described Business Stream is switched to described host node is transmitted.
8. a device for transmitting service flows in looped network, is characterized in that, described device comprises: set up unit and delivery unit, wherein,
Set up unit, for setting up tunnel between host node preassigned in looped network and other each nodes;
Delivery unit, Business Stream for being transmitted by the described tunnel setting up unit foundation is transmitted in described looped network, wherein, pass through the process of set up tunnel transport service stream, specifically comprise: for the Business Stream that will forward, the tunnel of pressed on ring ingress by setting up between self and described preassigned host node of described Business Stream, the Business Stream that will transmit is sent to host node; Again by the tunnel of host node by setting up between self and the lower ring egress of described Business Stream, the Business Stream that will transmit is sent to described lower ring egress.
9. the device of transmitting service flows in looped network according to claim 8, it is characterized in that, described device also comprises: dispensing unit, in each node of described looped network, specify two host nodes in advance, and specified two host nodes secondary node is each other set.
10. the device of transmitting service flows in looped network according to claim 9, is characterized in that, describedly sets up unit, specifically for,
Between the preassigned host node of described dispensing unit and other each nodes; set up bidirectional tunnel clockwise with counterclockwise; and in set up bidirectional tunnel, specify the work tunnel that is used for transport service stream and the protection tunnel for the transport service stream when described work tunnel fault.
The device of 11. transmitting service flows in looped networks according to claim 10, is characterized in that, described delivery unit, specifically for,
For the Business Stream that will forward; by the work tunnel between the pressed on ring ingress of described Business Stream and the preassigned host node of described dispensing unit or protect tunnel and the work tunnel between described host node and the lower ring egress of described Business Stream or protect tunnel, the Business Stream that will transmit is sent to described lower ring egress from described pressed on ring ingress.
The device of 12. transmitting service flows in looped networks according to claim 11, it is characterized in that, described delivery unit, comprises processing module, for when the described Business Stream that will transmit is sent to described host node, exchange process is carried out to the label of described Business Stream forward-path.
13., according to claim 11 to the device of the transmitting service flows in looped network described in 12 any one, is characterized in that, described delivery unit, specifically for,
When the work tunnel of described Business Stream is normal, by described work tunnel transport service stream; Described Business Stream work tunnel fault and protection tunnel normal time, by described protection tunnel transport service stream; When the work tunnel of described Business Stream and the protection equal fault in tunnel or host node fault corresponding to described Business Stream, the secondary node that described Business Stream is switched to described host node is transmitted.
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| CN201010288932.2A CN102404176B (en) | 2010-09-19 | 2010-09-19 | A kind of method of transmitting service flows in looped network and device |
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| CN201010288932.2A CN102404176B (en) | 2010-09-19 | 2010-09-19 | A kind of method of transmitting service flows in looped network and device |
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| CN102404176B true CN102404176B (en) | 2016-03-30 |
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| CN103684951B (en) * | 2012-08-31 | 2017-06-20 | 中国移动通信集团公司 | A kind of ring network protection method and system |
| CN106059879A (en) * | 2016-01-29 | 2016-10-26 | 深圳市禾望电气股份有限公司 | Control system and control method thereof |
| CN107733983B (en) * | 2017-09-12 | 2021-01-26 | 深圳市盛路物联通讯技术有限公司 | Internet of things communication method and first repeater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1761228A (en) * | 2004-10-15 | 2006-04-19 | 华为技术有限公司 | Method for implementing transmission and protection for service in MPLS ring net |
| CN101494597A (en) * | 2008-01-24 | 2009-07-29 | 中国移动通信集团公司 | Method, apparatus and system for obtaining network resource configuration information |
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| WO2005109013A2 (en) * | 2004-05-06 | 2005-11-17 | Alcatel Optical Networks Israel Ltd. | Efficient protection mechanisms in a ring topology network utilizing label switching protocols |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761228A (en) * | 2004-10-15 | 2006-04-19 | 华为技术有限公司 | Method for implementing transmission and protection for service in MPLS ring net |
| CN101494597A (en) * | 2008-01-24 | 2009-07-29 | 中国移动通信集团公司 | Method, apparatus and system for obtaining network resource configuration information |
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