CN103840972A - System and method for backup between link aggregation groups in packet switched network - Google Patents
System and method for backup between link aggregation groups in packet switched network Download PDFInfo
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- CN103840972A CN103840972A CN201410056644.2A CN201410056644A CN103840972A CN 103840972 A CN103840972 A CN 103840972A CN 201410056644 A CN201410056644 A CN 201410056644A CN 103840972 A CN103840972 A CN 103840972A
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Abstract
The invention discloses a system and method for backup between link aggregation groups in a packet switched network, and relates to the field of packet switched networks. The method includes the following steps that a Trunk 1 is configured on a first device, a Trunk 1 is configured on a second device, and normal work is guaranteed, wherein the Trunk 1 on the first device and the Trunk 1 on the second device are in the same mode; a Trunk 2 is configured on the first device, a Trunk 2 is configured on the second device, and normal work is guaranteed, wherein the Trunk 2 on the first device and the Trunk 2 on the second device are in the same mode; the system randomly assigns one aggregation group in the Trunks 1 and the Trunks 2 to work in a priority mode, and the other aggregation group is automatically in a backup state; when faults occur in a link of an active link aggregation group between the first device and the second device, the system assigns an inactive link aggregation group to be in a working state, and services of the fault link are switched into a link of the inactive link aggregation group for transmission, wherein the Trunks 1 and the Trunks 2 are in the same mode or in different modes. Service flow of the fault link aggregation group is switched into the other standby aggregation group, and therefore the services are protected.
Description
Technical field
The present invention relates to packet network field, specifically relate to the system and method backing up between a kind of packet network link aggregation group.
Background technology
Along with social development, the growth of data business volume, the high request of service quality, in packet network, adopt at present MPLS(Multi-Protocol Label Switching, multiprotocol label switching), MPLS_TP(MPLS-Transport Profile, towards the multiprotocol label switching transmitting), VLAN(Virtual Local Area Network, VLAN) technology such as exchange realizes traffic engineering.Before user data transmission, require to formulate service-level agreement according to user, allocate the forward-path of data in advance by control protocol, bandwidth resources, formation has the service flow of the quality of service guarantees such as bandwidth, and in the time that network resource status changes, further adjust the forward-path of service flow, thereby meet user's QoS(Quality of Service, service quality) requirement, so TE(Traffic Engineering, traffic engineering) technology is more and more extensive in the application of carrier network at present.High bandwidth, high availability become the most important feature of packet network day by day.Link aggregation is an important technology that meets packet network high availability and high bandwidth.
Link aggregation technology is by many physical link bindings of two LA Management Rooms in packet network, form a link in logic, making this link is logically an entirety, a link at miscellaneous equipment, the details that has shielded inner composition and transmission data, provides larger bandwidth and redundancy backup ability.Obviously, link aggregation technology can reach the object of simplified network topology.In addition; the physical link of polymerization inside can complete data transmit-receive task backup mutually jointly; as long as also there is the Member Link that can normally work; data flow on faulty link can be switched to the Member Link of other normal work; whole aggregated links just can not lose efficacy, thereby reaches the object of protection business in aggregated links inside.But if cause for a certain reason aggregated links to lose efficacy, link aggregation group cannot provide enough bandwidth supports or bandwidth support cannot be provided, even if there is so alarm report, business is still inevitably interrupted.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology; the system and method backing up between a kind of packet network link aggregation group is provided; when in the aggregated links of packet network, some Member Link breaks down; aggregation group link burden reaches the upper limit; or do not have Member Link to break down and aggregation group link burden exceeds the upper limit; or while causing link aggregation group to lose efficacy because of certain reason; the service traffics of the link aggregation group breaking down can be switched to another one aggregation group for subsequent use, make business protected.
The invention provides the system backing up between a kind of packet network link aggregation group, comprise the first equipment and the second equipment, the internal configurations of the first equipment, the second equipment is identical, described system configures the first link aggregation group Trunk1 on the first equipment, on the second equipment, the first link aggregation group Trunk1 of corresponding configuration model identical, guarantees normal work; Then on the first equipment, configure the second link aggregation group Trunk2, on the second equipment, the second link aggregation group Trunk2 of corresponding configuration model identical, guarantees normal work; The pattern of the first link aggregation group Trunk1 and the second link aggregation group Trunk2 is identical or different; System is specified arbitrarily a link aggregation group priority task in Trunk1, Trunk2, another link aggregation group in Trunk1, Trunk2 is Status of Backups automatically, be under initial condition, one in Trunk1, Trunk2 is active link aggregation group, in running order, forwarding service data flow, another in Trunk1, Trunk2 is inactive link aggregation group, in Status of Backups;
Described the first equipment, the internal configurations that the second equipment is identical is: by the first link aggregation group Trunk1 of configuration, the second link aggregation group Trunk2 joins in another higher level's aggregation group Super Trunk as the aggregation group Sub Trunk of subordinate, in configuration service, only by business configuration to higher level's aggregation group Super Trunk, Business Stream reality is carried by the aggregation group Sub Trunk of subordinate, higher level's aggregation group Super Trunk is a virtual aggregation group, the aggregation group Sub Trunk of subordinate is entity aggregation group, when initialization, system specifies arbitrarily an aggregation group Sub Trunk of subordinate as carrying aggregation group, if Trunk1 is active link aggregation group, in running order, the aggregation group Sub Trunk of another subordinate is inactive link aggregation group, in Status of Backups,
In the time that the link of the active link aggregation group between the first equipment, the second equipment breaks down; system specifies inactive link aggregation group to become operating state; the business of faulty link is switched on the link of inactive link aggregation group to be transmitted, and business is effectively protected.
On the basis of technique scheme, described the first link aggregation group Trunk1 is active link aggregation group, and in running order, Trunk2 is inactive link aggregation group, in Status of Backups.
On the basis of technique scheme; when certain link in the multilink of active link aggregation group Trunk1 between described the first equipment, the second equipment breaks down; system specifies inactive link aggregation group Trunk2 to become operating state; the business of faulty link is switched on the link of Trunk2 to be transmitted, and business is effectively protected.
On the basis of technique scheme; while there is extreme case in the link failure of described active link aggregation group Trunk1 between the first equipment, the second equipment; all links of active link aggregation group Trunk1 all cannot be worked; Trunk1 is in failure state for active link aggregation group; system specifies inactive link aggregation group Trunk2 to become operating state; Trunk2 provides effective physical link; all business of faulty link aggregation group Trunk1 are switched on the link of Trunk2 to be transmitted, and business is effectively protected.
The present invention also provides the method backing up between the packet network link aggregation group based on said system, comprises the following steps:
S1, first on the first equipment, configure the first link aggregation group Trunk1, on the second equipment, the first link aggregation group Trunk1 of corresponding configuration model identical, guarantees normal work; Then on the first equipment, configure the second link aggregation group Trunk2, on the second equipment, the second link aggregation group Trunk2 of corresponding configuration model identical, guarantees normal work; The pattern of the first link aggregation group Trunk1 and the second link aggregation group Trunk2 is identical or different; System is specified arbitrarily a link aggregation group priority task in Trunk1, Trunk2, another link aggregation group in Trunk1, Trunk2 is Status of Backups automatically, be under initial condition, one in Trunk1, Trunk2 is active link aggregation group, in running order, forwarding service data flow, another in Trunk1, Trunk2 is inactive link aggregation group, in Status of Backups;
Described the first equipment, the internal configurations that the second equipment is identical are: using configuration the first link aggregation group Trunk1, the second link aggregation group Trunk2 in the aggregation group Sub Trunk of subordinate joins another higher level's aggregation group Super Trunk, in configuration service, only by business configuration to higher level's aggregation group Super Trunk, Business Stream reality is carried by the aggregation group Sub Trunk of subordinate, higher level's aggregation group Super Trunk is a virtual aggregation group, and the aggregation group Sub Trunk of subordinate is entity aggregation group; When initialization, system specifies arbitrarily an aggregation group Sub Trunk of subordinate as carrying aggregation group, if Trunk1 is active link aggregation group, in running order, the aggregation group Sub Trunk of another subordinate is inactive link aggregation group, in Status of Backups;
S2, in the time that the link of the active link aggregation group between the first equipment, the second equipment breaks down; system specifies inactive link aggregation group to become operating state; the business of faulty link is switched on the link of inactive link aggregation group to be transmitted, and business is effectively protected.
On the basis of technique scheme, described the first link aggregation group Trunk1 is active link aggregation group, and in running order, Trunk2 is inactive link aggregation group, in Status of Backups.
On the basis of technique scheme; when certain link in the multilink of active link aggregation group Trunk1 between described the first equipment, the second equipment breaks down; system specifies inactive link aggregation group Trunk2 to become operating state; the business of faulty link is switched on the link of Trunk2 to be transmitted, and business is effectively protected.
On the basis of technique scheme; while there is extreme case in the link failure of the active link aggregation group Trunk1 between described the first equipment, the second equipment; all links of active link aggregation group Trunk1 all cannot be worked; Trunk1 is in failure state for active link aggregation group; system specifies inactive link aggregation group Trunk2 to become operating state; Trunk2 provides effective physical link; all business of faulty link aggregation group Trunk1 are switched on the link of Trunk2 to be transmitted, and business is effectively protected.
Compared with prior art, advantage of the present invention is as follows:
The present invention directly opens two aggregation group on equipment, aggregation group pattern, the member port speed of aggregation group, port medium all can be different, the not in running order and Status of Backups of two polymeric components, according to the variation of Link State and actual needs, backup link can be transformed into operating state, originally in running order link aggregation group can in running order and off position, whether this lost efficacy and decided according to original aggregation group, finally realize switching of business, thereby reach protective effect, minimally reduces the impact of link failure on user.The present invention is by the backup between aggregation group; when in the aggregated links of packet network, some Member Link breaks down; aggregation group link burden reaches the upper limit; or do not have Member Link to break down and aggregation group link burden exceeds the upper limit; or while causing link aggregation group to lose efficacy because of certain reason; the service traffics of this aggregation group can be switched to another one aggregation group for subsequent use; make business protected; make link aggregation group transfer of data more reliable; business is more reliable and more stable; the effectively competitiveness of raising equipment, the demand of adaptation era development.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the system that backs up between packet network link aggregation group in the embodiment of the present invention.
Fig. 2 is the internal configurations schematic diagram of the first equipment in the embodiment of the present invention, the second equipment.
Fig. 3 is the link schematic diagram of certain link of the active link aggregation group Trunk1 between the first equipment in the embodiment of the present invention, the second equipment while breaking down.
Fig. 4 is the link schematic diagrames of all links of the active link aggregation group Trunk1 between the first equipment in the embodiment of the present invention, the second equipment cannot work time.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides the system backing up between a kind of packet network link aggregation group, comprises the first equipment and the second equipment, and the internal configurations of the first equipment, the second equipment is identical.
The embodiment of the present invention also provides a kind of method backing up between packet network link aggregation group based on said system, comprises the following steps:
S1, system configure the first link aggregation group Trunk1 on the first equipment, and the first link aggregation group Trunk1 of corresponding configuration model identical on the second equipment, guarantees normally to work; Then on the first equipment, configure the second link aggregation group Trunk2, the second link aggregation group Trunk2 of corresponding configuration model identical on the second equipment, guarantees normally to work.The first link aggregation group Trunk1 can be identical with the pattern of the second link aggregation group Trunk2, also can be different, for example: Trunk1 has moved the LACP(Link Aggregation Control Protocol of dynamic protocol, Link Aggregation Control Protocol) aggregation group, Trunk2 is configured to manual aggregation group and allows.System is specified arbitrarily a link aggregation group priority task in Trunk1, Trunk2, another link aggregation group in Trunk1, Trunk2 is Status of Backups automatically, be under initial condition, one in Trunk1, Trunk2 is active link aggregation group, in running order, forwarding service data flow, another in Trunk1, Trunk2 is inactive link aggregation group, in Status of Backups.
Shown in Figure 2, the first equipment, the internal configurations that the second equipment is identical are: the first link aggregation group Trunk1, the second link aggregation group Trunk2 of configuration are joined to another higher level's aggregation group (Super Trunk) as subordinate's aggregation group (Sub Trunk) inner, in configuration service, only by business configuration to higher level's aggregation group Super Trunk, Business Stream reality is carried by the aggregation group Sub Trunk of subordinate, rather than is carried by higher level's aggregation group Super Trunk.That is to say, higher level's aggregation group Super Trunk is a virtual aggregation group, and the aggregation group Sub Trunk of subordinate is entity aggregation group.When initialization, system specifies arbitrarily an aggregation group Sub Trunk of subordinate as carrying aggregation group, if Trunk1 is active link aggregation group, in running order, the aggregation group Sub Trunk of another subordinate is inactive link aggregation group, in Status of Backups.
S2, in the time that the link of the active link aggregation group between the first equipment, the second equipment breaks down; system specifies inactive link aggregation group to become operating state; the business of faulty link is switched on the link of inactive link aggregation group to be transmitted, and business is effectively protected.
Shown in Figure 1, the first link aggregation group Trunk1 is active link aggregation group, in running order, and the second link aggregation group Trunk2 is inactive link aggregation group, in Status of Backups.
Shown in Figure 3, when the first equipment, when certain link in the multilink of active link aggregation group Trunk1 between the second equipment breaks down, according to the operation principle of link aggregation group, the business of this link is switched on other links of Trunk1, but, if each link is all in full load condition, switch business in the past and will occur packet drop, service transmission quality is impaired, for fear of packet loss, system specifies inactive link aggregation group Trunk2 to become operating state, the business of faulty link is switched on the link of Trunk2 to be transmitted, business is effectively protected.
Shown in Figure 4, when the first equipment, while there is extreme case in the link failure of the active link aggregation group Trunk1 between the second equipment, all links of active link aggregation group Trunk1 all cannot be worked, Trunk1 is in failure state for active link aggregation group, cannot provide active link to carry out transfer of data, this situation exists in actual applications, especially moved the aggregation group of link aggregation protocols, when both sides can not consult to there will be in successful situation because of certain reason, in order to overcome this problem, because the mode of operation of two link aggregation group can be different, system specifies inactive link aggregation group Trunk2 to become operating state, Trunk2 provides effective physical link, all business of faulty link aggregation group Trunk1 are switched on the link of Trunk2 to be transmitted, business is effectively protected.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these revise and modification within the scope of the claims in the present invention and equivalent technologies thereof, these modifications and modification also within protection scope of the present invention.
The prior art that the content of not describing in detail in specification is known to the skilled person.
Claims (8)
1. the system backing up between a packet network link aggregation group, comprise the first equipment and the second equipment, the internal configurations of the first equipment, the second equipment is identical, it is characterized in that: described system configures the first link aggregation group Trunk1 on the first equipment, on the second equipment, the first link aggregation group Trunk1 of corresponding configuration model identical, guarantees normal work; Then on the first equipment, configure the second link aggregation group Trunk2, on the second equipment, the second link aggregation group Trunk2 of corresponding configuration model identical, guarantees normal work; The pattern of the first link aggregation group Trunk1 and the second link aggregation group Trunk2 is identical or different; System is specified arbitrarily a link aggregation group priority task in Trunk1, Trunk2, another link aggregation group in Trunk1, Trunk2 is Status of Backups automatically, be under initial condition, one in Trunk1, Trunk2 is active link aggregation group, in running order, forwarding service data flow, another in Trunk1, Trunk2 is inactive link aggregation group, in Status of Backups;
Described the first equipment, the internal configurations that the second equipment is identical is: by the first link aggregation group Trunk1 of configuration, the second link aggregation group Trunk2 joins in another higher level's aggregation group Super Trunk as the aggregation group Sub Trunk of subordinate, in configuration service, only by business configuration to higher level's aggregation group Super Trunk, Business Stream reality is carried by the aggregation group Sub Trunk of subordinate, higher level's aggregation group Super Trunk is a virtual aggregation group, the aggregation group Sub Trunk of subordinate is entity aggregation group, when initialization, system specifies arbitrarily an aggregation group Sub Trunk of subordinate as carrying aggregation group, if Trunk1 is active link aggregation group, in running order, the aggregation group Sub Trunk of another subordinate is inactive link aggregation group, in Status of Backups,
In the time that the link of the active link aggregation group between the first equipment, the second equipment breaks down; system specifies inactive link aggregation group to become operating state; the business of faulty link is switched on the link of inactive link aggregation group to be transmitted, and business is effectively protected.
2. the system backing up between packet network link aggregation group as claimed in claim 1, is characterized in that: described the first link aggregation group Trunk1 is active link aggregation group, and in running order, Trunk2 is inactive link aggregation group, in Status of Backups.
3. the system backing up between packet network link aggregation group as claimed in claim 2; it is characterized in that: when certain link in the multilink of the active link aggregation group Trunk1 between described the first equipment, the second equipment breaks down; system specifies inactive link aggregation group Trunk2 to become operating state; the business of faulty link is switched on the link of Trunk2 to be transmitted, and business is effectively protected.
4. the system backing up between packet network link aggregation group as claimed in claim 2, it is characterized in that: described when the first equipment, while there is extreme case in the link failure of the active link aggregation group Trunk1 between the second equipment, all links of active link aggregation group Trunk1 all cannot be worked, Trunk1 is in failure state for active link aggregation group, system specifies inactive link aggregation group Trunk2 to become operating state, Trunk2 provides effective physical link, all business of faulty link aggregation group Trunk1 are switched on the link of Trunk2 to be transmitted, business is effectively protected.
5. the method backing up between the packet network link aggregation group based on system described in any one in claim 1 to 4, is characterized in that, comprises the following steps:
S1, first on the first equipment, configure the first link aggregation group Trunk1, on the second equipment, the first link aggregation group Trunk1 of corresponding configuration model identical, guarantees normal work; Then on the first equipment, configure the second link aggregation group Trunk2, on the second equipment, the second link aggregation group Trunk2 of corresponding configuration model identical, guarantees normal work; The pattern of the first link aggregation group Trunk1 and the second link aggregation group Trunk2 is identical or different; System is specified arbitrarily a link aggregation group priority task in Trunk1, Trunk2, another link aggregation group in Trunk1, Trunk2 is Status of Backups automatically, be under initial condition, one in Trunk1, Trunk2 is active link aggregation group, in running order, forwarding service data flow, another in Trunk1, Trunk2 is inactive link aggregation group, in Status of Backups;
Described the first equipment, the internal configurations that the second equipment is identical are: using configuration the first link aggregation group Trunk1, the second link aggregation group Trunk2 in the aggregation group Sub Trunk of subordinate joins another higher level's aggregation group Super Trunk, in configuration service, only by business configuration to higher level's aggregation group Super Trunk, Business Stream reality is carried by the aggregation group Sub Trunk of subordinate, higher level's aggregation group Super Trunk is a virtual aggregation group, and the aggregation group Sub Trunk of subordinate is entity aggregation group; When initialization, system specifies arbitrarily an aggregation group Sub Trunk of subordinate as carrying aggregation group, if Trunk1 is active link aggregation group, in running order, the aggregation group Sub Trunk of another subordinate is inactive link aggregation group, in Status of Backups;
S2, in the time that the link of the active link aggregation group between the first equipment, the second equipment breaks down; system specifies inactive link aggregation group to become operating state; the business of faulty link is switched on the link of inactive link aggregation group to be transmitted, and business is effectively protected.
6. the method backing up between packet network link aggregation group as claimed in claim 5, is characterized in that: described the first link aggregation group Trunk1 is active link aggregation group, and in running order, Trunk2 is inactive link aggregation group, in Status of Backups.
7. the method backing up between packet network link aggregation group as claimed in claim 6; it is characterized in that: when certain link in the multilink of the active link aggregation group Trunk1 between described the first equipment, the second equipment breaks down; system specifies inactive link aggregation group Trunk2 to become operating state; the business of faulty link is switched on the link of Trunk2 to be transmitted, and business is effectively protected.
8. the method backing up between packet network link aggregation group as claimed in claim 6, it is characterized in that: described the first equipment, while there is extreme case in the link failure of the active link aggregation group Trunk1 between the second equipment, all links of active link aggregation group Trunk1 all cannot be worked, Trunk1 is in failure state for active link aggregation group, system specifies inactive link aggregation group Trunk2 to become operating state, Trunk2 provides effective physical link, all business of faulty link aggregation group Trunk1 are switched on the link of Trunk2 to be transmitted, business is effectively protected.
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| WO2016082516A1 (en) * | 2014-11-24 | 2016-06-02 | 中兴通讯股份有限公司 | Link bundling method and system |
| CN106603276A (en) * | 2016-11-22 | 2017-04-26 | 华为技术有限公司 | Fault processing method and device of SERDES link group |
| CN109995567A (en) * | 2017-12-29 | 2019-07-09 | 北京华为数字技术有限公司 | Method, device and system for automatic protection of link aggregation group |
| CN110336742A (en) * | 2019-06-20 | 2019-10-15 | 网联清算有限公司 | Method for sending information, device, computer equipment and storage medium |
| CN113141268A (en) * | 2020-01-20 | 2021-07-20 | 华为技术有限公司 | Method and device for realizing redundancy backup of link aggregation group of manual aggregation |
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| CN103840972B (en) | 2018-03-20 |
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