CN102457422A - Method and system for realizing cross-node aggregated link in packet switching network - Google Patents
Method and system for realizing cross-node aggregated link in packet switching network Download PDFInfo
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- CN102457422A CN102457422A CN2010105143728A CN201010514372A CN102457422A CN 102457422 A CN102457422 A CN 102457422A CN 2010105143728 A CN2010105143728 A CN 2010105143728A CN 201010514372 A CN201010514372 A CN 201010514372A CN 102457422 A CN102457422 A CN 102457422A
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- H04L45/00—Routing or path finding of packets in data switching networks
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Abstract
The invention discloses a method for realizing a cross-node aggregated link in a packet switching network. The method comprises the steps that: connection is established on subnets needing to be crossed, and one or more subnets needing to be crossed are enabled to be connected in an intelligent network to form virtual links; configured virtual link information is published in the intelligent network; and a cross-node virtual aggregated link is realized by adopting the virtual link information, and automatic creation of service connection or rerouting after service restoral is conducted by utilizing the virtual aggregated link as a unit. The invention additionally discloses a system for realizing the cross-node aggregated link in the packet switching network. A virtual aggregated link realizing unit in the system is used for adopting the virtual link information to realize the cross-node virtual aggregated link and conduct automatic creation of service connection or rerouting after service restoral by utilizing the virtual aggregated link as the unit. By adopting the method and the system disclosed by the invention, automatic creation of connection among networks can be realized and the requirements of rerouting after service restoral can be satisfied.
Description
Technical field
The present invention relates to the aggregated links technology, relate in particular to the method and system that realize the cross-node aggregated links in a kind of packet network.
Background technology
Link aggregation is that two or more data channels are combined into a single channel, and this channel occurs with the logical links of a single more high bandwidth.Link aggregation generally is used for connecting the big equipment of one or more bandwidth demands, for example connects the server or the server zone of backbone network.
After adopting link aggregation, the bandwidth of logical links has increased many, and reliability also improves greatly, because as long as there is the link can operate as normal in the Member Link of the logical links that obtains behind the link aggregation, then this logical links just can operate as normal.In addition, link aggregation can also be realized load balancing.Because, two (or a plurality of) switches (or other network equipments) that link together through link aggregation, through internal control, also can be reasonably with data allocations on the equipment that is connected by polymerization, realize load balancing.
Yet, in the legacy network of link aggregation technology of being unrealized, having existed and to have disposed lot of data professional, how compatible with legacy network newly deployed link aggregation technology is, and to utilize the advantage of link aggregation technology be to need the problem considered.Introduced the control plane technology owing to realize the network of link aggregation technology, had the Based Intelligent Control characteristic, therefore, this paper can realize that the network of link aggregation is called intelligent network, so that it is come with failing to realize the legacy network difference of link aggregation.
Be illustrated in figure 1 as intelligent network and the interconnected schematic network structure of legacy network in the prior art, among Fig. 1, between client a and client b, have three networks, the intelligent network of forming by A, B, C, D respectively; The legacy network of forming by E, F, G, H; The intelligent network of forming by J, K, L, M.If between client a and client b, set up a business; At present, existing solution is: at first confirm the professional route between the network, such as definite B-E link, F-I link as the route between the network; And on respective nodes, generate and transmit; So just can be divided into three connections, be respectively the connection of client a to the B-E link carrying client a to the professional end-to-end connection of client b; The B-E link is to the connection of F-I link; F-I is to the connection of client b.Then, in three networks, set up above-mentioned three connections more respectively, wherein the B-E link is set up by transmitting of human configuration to the connection of F-J link, and other two connections are responsible for setting up automatically by intelligent network.
Adopt above-mentioned existing solution; In the intelligent network that can realize link aggregation and hybrid network that the legacy network of failing to realize link aggregation mixes mutually; Though can accomplish establishment of connection between network, because legacy network not only needs human configuration to transmit, that is to say need be by manual intervention; And can't utilize the technological advantage of link aggregation, thereby cause the route between the network not confirm automatically.It is thus clear that the shortcoming that adopts above-mentioned existing solution to exist is: on the one hand, need network management personnel's manual work to get involved, connect create automatically intelligent not enough; On the other hand, can not satisfy the needs of business recovery heavy-route.
Summary of the invention
In view of this; Main purpose of the present invention is to provide the method and system that realize the cross-node aggregated links in a kind of packet network; In the intelligent network that can realize link aggregation and hybrid network that the legacy network of failing to realize link aggregation mixes mutually; Can realize the automatic establishment that connects between network and the needs that can satisfy the business recovery heavy-route.
For achieving the above object, technical scheme of the present invention is achieved in that
Realize the method for cross-node aggregated links in a kind of packet network, this method comprises: on the subnet of required leap, connect, make one or more being connected of the said subnet that need cross over form virtual link in the intelligent network; Configuration virtual link information is issued the said virtual link information of configuration in said intelligent network; The said virtual link information of adopting said intelligent network realizes the empty aggregated links of cross-node, and is that unit carries out professional automatic establishment that connects or the heavy-route behind the business recovery with said empty aggregated links.
Wherein, this method also comprises: the span that will have label now is repartitioned, and is divided into the span of common label and the span of empty label; Perhaps, the span of existing label is expanded, and be divided into the span of common label and the span of empty label.
Wherein, employed label is said empty label on the said subnet that needs to cross over.
Wherein, said configuration virtual link information is specially: the intelligent network nodes that said virtual link information configuration is linked to each other with said virtual link in the said intelligent network.
Wherein, the intelligent network nodes that said virtual link information configuration is linked to each other with said virtual link in the said intelligent network specifically comprises:
Said virtual link information is directly disposed two intelligent network nodes giving said virtual link two ends; Perhaps,
Said virtual link information configuration is given the intelligent network nodes of said virtual link one end; The intelligent network nodes of an other end of said virtual link through with the Signalling exchange of the intelligent network nodes that disposes virtual link information, know said virtual link information from the intelligent network nodes that disposes virtual link information.
Wherein, said empty aggregated links is specially: the aggregated links that to include a Member Link at least be virtual link;
Said when carrying out professional automatic establishment that connects or the heavy-route behind the business recovery, this method also comprises: said intelligent network need be chosen route, and the route of choosing is through said empty aggregated links.
Wherein, said virtual link information specifically comprises: empty label corresponding relation;
Said when carrying out professional automatic establishment that connects or the heavy-route behind the business recovery, this method also comprises: the upper reaches intelligent network nodes of said empty aggregated links sends to connect sets up the downstream intelligent network nodes of asking said empty aggregated links; The label of the empty aggregated links intelligent network nodes at the upper reaches that carries in the request is set up in the connection that the intelligent network nodes inspection of said downstream receives; If the label of said empty aggregated links intelligent network nodes at the upper reaches is empty label; Then need search said empty label corresponding relation earlier and obtain the empty label corresponding with said label, and then based on transmitting the outbound port of confirming that empty aggregated links is transmitted on the intelligent network nodes of downstream; If the label of said empty aggregated links intelligent network nodes at the upper reaches is a common label, then directly determine port based on transmitting.
Realize the system of cross-node aggregated links in a kind of packet network, this system comprises: virtual link forms unit, virtual link information configuration and release unit, empty aggregated links realizes the unit; Wherein,
Virtual link forms the unit, is used on the subnet of required leap, connecting, and makes one or more being connected of the said subnet that need cross over form virtual link in the intelligent network;
Virtual link information configuration and release unit are used to dispose virtual link information, and the said virtual link information of configuration is issued in said intelligent network;
Empty aggregated links realizes the unit, is used for said intelligent network and adopts said virtual link information to realize the empty aggregated links of cross-node, and be that unit carries out professional automatic establishment that connects or the heavy-route behind the business recovery with said empty aggregated links.
Wherein, this system also comprises the label range division unit, is used for the span of existing label is repartitioned, and is divided into the span of common label and the span of empty label; Perhaps, the span of existing label is expanded, and be divided into the span of common label and the span of empty label.
Wherein, said virtual link information configuration and release unit are further used for said virtual link information is directly disposed two intelligent network nodes giving said virtual link two ends; Perhaps; Said virtual link information configuration is given the intelligent network nodes of said virtual link one end; The intelligent network nodes of an other end of said virtual link through with the Signalling exchange of the intelligent network nodes that disposes virtual link information, know said virtual link information from the intelligent network nodes that disposes virtual link information.
The present invention connects on the subnet of required leap, makes one or more being connected of the subnet that needs leap form virtual link in the intelligent network; Configuration virtual link information is issued the virtual link information of configuration in intelligent network; The virtual link information that adopts intelligent network realizes the empty aggregated links of cross-node, and is that unit carries out professional automatic establishment that connects or the heavy-route behind the business recovery with empty aggregated links.Adopt the present invention, can realize the automatic establishment that connects between network and the needs that can satisfy the business recovery heavy-route.
Description of drawings
Fig. 1 is the interconnected a kind of schematic network structure of intelligent network and legacy network;
Fig. 2 is the schematic network structure in the embodiment of the invention;
Fig. 3 is the sketch map of empty label corresponding relation during with legacy network resource structure virtual link in the embodiment of the invention;
Fig. 4 is for being configured to legacy network in the embodiment of the invention sketch map of virtual link;
Fig. 5 uses the sketch map of empty aggregated links for intelligent network in the embodiment of the invention;
Fig. 6 is for being configured to the intelligent network infrastructure sketch map after the empty aggregated links with the legacy network among Fig. 1 in the embodiment of the invention.
Embodiment
Basic thought of the present invention is: on the subnet of required leap, connect, make one or more being connected of the subnet that needs leap form virtual link in the intelligent network; Configuration virtual link information is issued the virtual link information of configuration in intelligent network; The virtual link information that adopts intelligent network realizes the empty aggregated links of cross-node, and is that unit carries out professional automatic establishment that connects or the heavy-route behind the business recovery with empty aggregated links.
Below in conjunction with accompanying drawing the enforcement of technical scheme is done further to describe in detail.
Realize the method for cross-node aggregated links in a kind of packet network; In simple terms; Between the subnet in packet network when interconnected; And this subnet comprises legacy network and intelligent network, that is to say, the whole packet network that is made up of subnet is a hybrid network that is mixed mutually by the intelligent network that can realize link aggregation and the legacy network of failing to realize link aggregation.Can't realize the link aggregation technology during for legacy network when subnet in the prior art; And adopt method of the present invention, because the link aggregation technology is expanded, therefore;, also can realize subnet the link aggregation technology when being legacy network; That is to say that this method is through expansion link polymerization technique, make and in this hybrid network, realized between subnet when interconnected (these subnets both can be that intelligent network also can be a legacy network); Still can in whole packet network, implement the link aggregation technology; And make business have the intelligent of end-to-end scheduling, the automatic establishment that connects between network can not only be realized, and the needs of business recovery heavy-route can be satisfied.
Concrete, this method mainly comprises following content:
The span that one, will have label now is repartitioned, and is divided into the span of common label and the span of empty label; Perhaps, the span of existing label is expanded, and be divided into the span of common label and the span of empty label.
Here it is pointed out that said empty label is the same with common label in form, just span is different.
Two, (this subnet that need cross over is legacy network normally at the subnet of required leap; Such as the legacy network of forming by E, F, G, H among Fig. 1) on connect (mode that connects both can be that human configuration also can be that intelligence is created), make one or more being connected of the said subnet that needs to cross over form virtual link in the intelligent network; Configuration virtual link information, with the virtual link information of configuration with intelligent network that this subnet that need cross over links to each other in issue.Wherein, said virtual link information comprises empty label corresponding relation.Said virtual link information can also comprise Linktype, protected mode, weight, capacity, shared risk link group, and its scheduling realizes going up with common link in full accord.
Here it is to be noted: employed label is necessary for empty label on the subnet that needs are crossed over.The purpose that adopts empty label is to be configured to virtual link for the subnet that will need to cross over.That is to say, make one or more being connected of the subnet that needs leap form virtual link in the intelligent network.
Three, the virtual link information of intelligent network utilization configuration is implemented the virtual link polymerization technique, realizes the empty aggregated links of cross-node, and is that unit carries out on the empty aggregated links professional automatic establishment that connects or the heavy-route behind the business recovery with empty aggregated links.
In the said method, also comprise following content in the second portion content:
A1, said configuration virtual link information are specially: the intelligent network nodes that said virtual link information configuration is linked to each other with said virtual link in the intelligent network.The concrete implementation of this configuration comprises: 1) dispose two intelligent network nodes to said virtual link two ends to said virtual link information direct labor; 2) give the wherein intelligent network nodes of an end of said virtual link said virtual link information human configuration; The intelligent network nodes of an other end of said virtual link passes through protocol signaling; Know said virtual link information from the intelligent network nodes that disposes virtual link information; Thereby, make two intelligent network nodes at virtual link two ends all know said virtual link information through this Signalling exchange.
B1, with the virtual link information of configuration with intelligent network that this subnet that need cross over links to each other in issue; Be specially: at the intelligent network nodes that links to each other with said virtual link; Disposed under the situation of virtual link information, disposed the intelligent network nodes of said virtual link information said virtual link information is issued through broadcast mode in said intelligent network.
C1, after virtual link information is issued through broadcast mode in said intelligent network, the virtual link information that all nodes in the said intelligent network can both obtain to dispose.
D1, in said intelligent network, create aggregated links, the Member Link in this aggregated links can be said virtual link.
In the said method, also comprise following content in the third part content:
The empty aggregated links of a2, said cross-node is meant the aggregated links that to include a Member Link at least in the empty aggregated links be virtual link.
B2, said when carrying out on the empty aggregated links professional automatic establishment that connects or the heavy-route behind the business recovery, said intelligent network need be chosen route, and the route of choosing is through said empty aggregated links.
C2, said when carrying out on the empty aggregated links professional automatic establishment that connects or the heavy-route behind the business recovery, this method also comprises:
After the upper reaches intelligent network nodes of said empty aggregated links receives and connects the request of foundation; Generate said empty aggregated links transmitting at this intelligent network nodes; When selecting the Member Link outbound port, common link port can be selected, also the virtual link port can be selected.Except using on the virtual link port the empty label using common label on the common link port, two kinds of links do not have other any difference on bandwidth floods and dispatches, transparent fully to application layer.
The upper reaches intelligent network nodes of said empty aggregated links sends to connect sets up the downstream intelligent network nodes of asking empty aggregated links.After the downstream intelligent network nodes of said empty aggregated links receives and connects the request of foundation; Inspection connects the label of the empty aggregated links intelligent network nodes at the upper reaches that carries in the request of foundation; If the label of this void aggregated links intelligent network nodes at the upper reaches is empty label; Then need search said empty label corresponding relation earlier and obtain the empty label corresponding with said label, and then based on transmitting the outbound port of confirming that empty aggregated links is transmitted on the intelligent network nodes of downstream; If the label of this void aggregated links intelligent network nodes at the upper reaches is a common label, then directly can determine port based on transmitting.
The upper reaches intelligent network nodes of said empty aggregated links and downstream intelligent network nodes connect transmitting of node separately according to empty aggregated links.
Below to the present invention's elaboration of giving an example.
Embodiment: the empty aggregated links implementation with the cross-node in the packet switching network is an example.
Be illustrated in figure 2 as the schematic network structure in the embodiment of the invention, among Fig. 2, intelligent network is made up of A, B, C, four nodes of D, and 1,2,3 are the port-mark on the node.Repartitioning label range in the present embodiment is the span of empty label and the span of common label, and empty label uses on the virtual link port, and common label uses on common link port.The span that empty label is set is: 0xf00000-0xffffff, the span of common label is: 0x000000-0xefffff.
The empty aggregated links of realization cross-node also realizes that the heavy-route behind professional connection establishment and the business recovery may further comprise the steps:
Step 101, be illustrated in figure 3 as the empty label corresponding relation sketch map that legacy network resource in the embodiment of the invention constitutes virtual link; Among Fig. 3; Transmit through the human configuration of legacy network and to set up the connection of node E, and in transmitting, use empty label to node F.
Step 102, be illustrated in figure 4 as in the embodiment of the invention sketch map that legacy network resource is constituted virtual link, among Fig. 4,3 of the port 3 of the node C of intelligent network and the ports of node D form virtual link; The empty label corresponding relation of both link ends is shown in following table 1, and table 1 is the empty label mapping table of both link ends.
| C node outbound port is the outgoing label of port 3 | D node inbound port is the label of going into of |
| 0xf00001 | 0xf00005 |
| 0xf00002 | 0xf00006 |
| 0xf00003 | 0xf00007 |
Table 1
Step 103, virtual link information directly be configured to the node C, node D of intelligent network, or the node C of virtual link information configuration to intelligent network, node D through with node C alternately, obtain virtual link information.
Node C, the node D of step 104, intelligent network broadcast virtual link information in intelligent network.
All nodes in the step 105, intelligent network comprise that node A, Node B have all obtained the virtual link information of 3 of ports of port 3 and the node D of node C.
Step 106, be illustrated in figure 5 as the sketch map that ASON in the embodiment of the invention (ASON) uses the specific embodiments of empty aggregated links; Among Fig. 5; Intelligent network uses the node C of configuration, the virtual link between node D; And node C, the common link of joint between D, dispose synthetic empty aggregated links.This void aggregated links comprises rank and file's link and a virtual link Member Link.
When step 107, intelligent network use empty aggregated links information to carry out professional establishment that connects or the heavy-route behind the business recovery, need choose route.
Here, this route of choosing is: the port 2 of port 2 <-->Node B of port 3 <-->the node D of port 3 <-->the node D of port one <-->the node C of port 3 <-->the node C of node A.
Step 108, node C receive the connection that comes from node A and set up request, connect in the request of foundation to carry resource tag 0x000001, and then node C creates and transmits to (going into label: 0x000001, outgoing label: 0xf00001, outbound port: 3).
Step 109, node C send to node D and connect the request of foundation, connect in the request of foundation and carry the resource tag between node C, node D, and this resource tag is the empty label of node C: 0xf00001.
Step 110, node D receive the connection of node C and set up request; The resource tag that inspection connects in the request of foundation is empty label: 0xf00001; Then the node D empty label of searching the node C that above-mentioned table 1 confirms earlier corresponding to the empty label of this node is: 0xf00005; Node D creates and transmits to (going into label: 0xf00005, outgoing label: 0x000002, outbound port: 2) then.
Step 111, node D send to Node B and connect the request of foundation, connect the outgoing label 0x000002 that carries node D in the request of foundation, have so far accomplished in professional establishment that connects or the heavy-route behind the business recovery on the empty aggregated links.
Finally; Handling process according to the above-mentioned steps description; The final schematic network structure that obtains is as shown in Figure 6 after in the packet switching network, realizing the empty aggregated links of cross-node, and Fig. 6 constitutes the intelligent network infrastructure sketch map after the empty aggregated links for application implementation example of the present invention with the legacy network among Fig. 1.
Realize the system of cross-node aggregated links in a kind of packet network, this system comprises: virtual link forms unit, virtual link information configuration and release unit, empty aggregated links realizes the unit.Wherein, virtual link forms the unit and is used on the subnet of required leap, connecting, and makes one or more being connected of the said subnet that need cross over form virtual link in the intelligent network.Virtual link information configuration and release unit are used to dispose virtual link information, and the said virtual link information of configuration is issued in said intelligent network.Empty aggregated links realizes that the unit is used for said intelligent network and adopts said virtual link information to realize the empty aggregated links of cross-node, and is that unit carries out professional automatic establishment that connects or the heavy-route behind the business recovery with said empty aggregated links.
Here, this system also comprises the label range division unit, and the label range division unit is used for the span of existing label is repartitioned, and is divided into the span of common label and the span of empty label; Perhaps, the span of existing label is expanded, and be divided into the span of common label and the span of empty label.
Here, virtual link information configuration and release unit are further used for said virtual link information is directly disposed two intelligent network nodes giving said virtual link two ends; Perhaps; Said virtual link information configuration is given the intelligent network nodes of said virtual link one end; The intelligent network nodes of an other end of said virtual link through with the Signalling exchange of the intelligent network nodes that disposes virtual link information, know said virtual link information from the intelligent network nodes that disposes virtual link information.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (10)
1. realize the method for cross-node aggregated links in the packet network, it is characterized in that this method comprises: on the subnet of required leap, connect, make one or more being connected of the said subnet that needs to cross over form virtual link in the intelligent network; Configuration virtual link information is issued the said virtual link information of configuration in said intelligent network; The said virtual link information of adopting said intelligent network realizes the empty aggregated links of cross-node, and is that unit carries out professional automatic establishment that connects or the heavy-route behind the business recovery with said empty aggregated links.
2. method according to claim 1 is characterized in that, this method also comprises: the span that will have label now is repartitioned, and is divided into the span of common label and the span of empty label; Perhaps, the span of existing label is expanded, and be divided into the span of common label and the span of empty label.
3. method according to claim 2 is characterized in that, employed label is said empty label on the said subnet that needs to cross over.
4. method according to claim 1 is characterized in that, said configuration virtual link information is specially: the intelligent network nodes that said virtual link information configuration is linked to each other with said virtual link in the said intelligent network.
5. method according to claim 4 is characterized in that, the intelligent network nodes that said virtual link information configuration is linked to each other with said virtual link in the said intelligent network specifically comprises:
Said virtual link information is directly disposed two intelligent network nodes giving said virtual link two ends; Perhaps,
Said virtual link information configuration is given the intelligent network nodes of said virtual link one end; The intelligent network nodes of an other end of said virtual link through with the Signalling exchange of the intelligent network nodes that disposes virtual link information, know said virtual link information from the intelligent network nodes that disposes virtual link information.
6. method according to claim 1 is characterized in that, said empty aggregated links is specially: the aggregated links that to include a Member Link at least be virtual link;
Said when carrying out professional automatic establishment that connects or the heavy-route behind the business recovery, this method also comprises: said intelligent network need be chosen route, and the route of choosing is through said empty aggregated links.
7. method according to claim 1 is characterized in that, said virtual link information specifically comprises: empty label corresponding relation;
Said when carrying out professional automatic establishment that connects or the heavy-route behind the business recovery, this method also comprises: the upper reaches intelligent network nodes of said empty aggregated links sends to connect sets up the downstream intelligent network nodes of asking said empty aggregated links; The label of the empty aggregated links intelligent network nodes at the upper reaches that carries in the request is set up in the connection that the intelligent network nodes inspection of said downstream receives; If the label of said empty aggregated links intelligent network nodes at the upper reaches is empty label; Then need search said empty label corresponding relation earlier and obtain the empty label corresponding with said label, and then based on transmitting the outbound port of confirming that empty aggregated links is transmitted on the intelligent network nodes of downstream; If the label of said empty aggregated links intelligent network nodes at the upper reaches is a common label, then directly determine port based on transmitting.
8. realize the system of cross-node aggregated links in the packet network, it is characterized in that this system comprises: virtual link forms unit, virtual link information configuration and release unit, empty aggregated links realizes the unit; Wherein,
Virtual link forms the unit, is used on the subnet of required leap, connecting, and makes one or more being connected of the said subnet that need cross over form virtual link in the intelligent network;
Virtual link information configuration and release unit are used to dispose virtual link information, and the said virtual link information of configuration is issued in said intelligent network;
Empty aggregated links realizes the unit, is used for said intelligent network and adopts said virtual link information to realize the empty aggregated links of cross-node, and be that unit carries out professional automatic establishment that connects or the heavy-route behind the business recovery with said empty aggregated links.
9. system according to claim 8 is characterized in that this system also comprises the label range division unit, is used for the span of existing label is repartitioned, and is divided into the span of common label and the span of empty label; Perhaps, the span of existing label is expanded, and be divided into the span of common label and the span of empty label.
10. system according to claim 8 is characterized in that, said virtual link information configuration and release unit are further used for said virtual link information is directly disposed two intelligent network nodes giving said virtual link two ends; Perhaps; Said virtual link information configuration is given the intelligent network nodes of said virtual link one end; The intelligent network nodes of an other end of said virtual link through with the Signalling exchange of the intelligent network nodes that disposes virtual link information, know said virtual link information from the intelligent network nodes that disposes virtual link information.
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| PCT/CN2011/078942 WO2012051888A1 (en) | 2010-10-20 | 2011-08-25 | Method and system for realizing cross-node aggregated links in a packet switching network |
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| CN113411296A (en) * | 2021-05-07 | 2021-09-17 | 上海纽盾科技股份有限公司 | Situation awareness virtual link defense method, device and system |
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| CN1710868A (en) * | 2005-07-14 | 2005-12-21 | 广东省电信有限公司研究院 | Cross-over end-to-end connection setting method for main apparatus protection in automatic exchange optical network |
| CN1859260A (en) * | 2006-01-25 | 2006-11-08 | 华为技术有限公司 | Resource distributing method while traditional optical transfer net and intelligent optical network grouping |
| EP1921808A1 (en) * | 2006-11-10 | 2008-05-14 | Lucent Technologies Inc. | Preemptive transmission protection scheme for data services |
| CN101184018A (en) * | 2007-12-18 | 2008-05-21 | 中兴通讯股份有限公司 | Automatic exchange optical network and traditional network interconnecting method |
| CN101626342A (en) * | 2008-07-07 | 2010-01-13 | 华为技术有限公司 | Method, device and system for realizing link aggregation |
| CN101534458A (en) * | 2009-04-23 | 2009-09-16 | 中兴通讯股份有限公司 | Automatic binding method and device for automatically exchanging UNI data link of optical-fiber network |
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| CN113411296A (en) * | 2021-05-07 | 2021-09-17 | 上海纽盾科技股份有限公司 | Situation awareness virtual link defense method, device and system |
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