CN105743801A - Method and device of flow forwarding of stack system - Google Patents
Method and device of flow forwarding of stack system Download PDFInfo
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Abstract
The present invention provides a method and device of flow forwarding of a stack system. The method comprises: determining whether an outcoming interface of data message is the aggregation link port of the stack system or not after a first member device of the stack system receives data message; selecting a first physical port corresponding to a shortest path according to the aggregation forwarding table when the outcoming interface of data message is the aggregation link port of the stack system, wherein a plurality of physical ports corresponding to the aggregation link port and the values of path distances from the device to member devices of each available physical port are recorded in the aggregation forwarding table; and forwarding the data message through the first physical port. The Method of flow forwarding of a stack system is able to solve the problems of the cross-device link aggregation flow forwarding uncertainty and the occupation of stack bandwidth.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for forwarding traffic in a stacking system.
Background
The stacking system is a device formed by combining a plurality of switch devices and virtualizing the switch devices, so that redundancy backup among devices can be realized through a plurality of devices in the stacking system, and link redundancy backup is realized through a cross-device link aggregation technology, so that the stability and reliability of the system are improved, as shown in fig. 1. The cross-device link aggregation technology can configure physical ports on different member switches into a logic aggregation port, so that when a certain member switch device fails or one link of aggregation links fails, the failure of the whole aggregation link cannot be caused, and the reliable transmission of data flow is ensured. The cross-device aggregation port is implemented by establishing an aggregation forwarding (Trunk) table on each device, where the Trunk table includes all physical ports to be added to an aggregation link, and the Trunk tables on each device are identical, as shown in table 1. When traffic forwarding is performed, a physical interface for actually forwarding traffic in a Trunk table is calculated according to a HASH (HASH) algorithm, which may cause that the traffic forwarded from the aggregation port is forwarded across devices, and thus stacking bandwidth between stacked devices is occupied. Because the bandwidth between the stacked devices is limited, the traffic forwarded across the devices increases the pressure of bandwidth bearing between the stacked devices, and simultaneously, the forwarding efficiency of the traffic is also reduced. In addition, the uncertainty of the computed interface by the HASH algorithm also makes it difficult for the user to control the cross-device link aggregation traffic forwarding, and cannot meet the scene that the traffic forwarding needs to be accurately controlled.
TABLE 1
In order to solve the problem of occupying the stacking bandwidth, a traffic local priority forwarding function is provided, that is, traffic entering the device is preferentially forwarded from an output interface of the device, and only when a link of the device fails, the traffic is forwarded to other member devices through the stacking bandwidth, as shown in fig. 2, the traffic indicated by a dotted line with an arrow is directly forwarded from a port of the device, and cannot be forwarded to an adjacent device across devices. The local priority forwarding function only distinguishes the forwarding priority of the device and all other member devices, and can reduce the occupation of stacking bandwidth under the normal condition of the device and the link, but when the device or the link fails, the flow can be redistributed on all other member devices, and when the number of stacking switches is large, the flow spans the stacking lines among a plurality of devices, and the limited stacking bandwidth resources can be greatly wasted.
Disclosure of Invention
The invention aims to provide a method and a device for forwarding traffic of a stacking system, which can solve the uncertainty of cross-equipment link aggregation traffic forwarding and reduce the occupation of stacking bandwidth.
In order to achieve the above object, an embodiment of the present invention provides a method for forwarding traffic of a stack system, where the method includes:
after receiving a data message, a first member device of the stacking system judges whether an output interface of the data message is a polymerization link port of the stacking system;
when an output interface of a data message is an aggregation link port of a stacking system, selecting a first physical port corresponding to a shortest path according to an aggregation forwarding table maintained by the device, wherein a plurality of available physical ports corresponding to the aggregation link port and distance values of paths from the device to member devices to which the available physical ports belong are recorded in the aggregation forwarding table;
and forwarding the data message through the first physical port.
Wherein the maintaining of the aggregation forwarding table comprises:
determining available physical ports corresponding to the aggregation link ports, calculating the distance value from the member device to the path of the member device to which each available physical port belongs, and generating and maintaining an aggregation forwarding table according to the distance value.
The step of determining an available physical port corresponding to the aggregation link port includes:
acquiring first fault information of member equipment detected by a stacking system;
and determining an available physical port corresponding to the aggregation link port according to the first fault information.
Wherein, the maintaining of the aggregation forwarding table further comprises:
acquiring second fault information of the physical port detected by the stacking system;
and updating the available physical ports corresponding to the aggregation link ports according to the second fault information, and generating and maintaining an aggregation forwarding table according to the distance value from the member device to the updated path of the member device to which each available physical port belongs.
Wherein,
maintaining the aggregated forwarding table further comprises: recording priority information corresponding to each available physical port;
according to the aggregation forwarding table maintained by the equipment, a first physical port corresponding to the shortest path is selected, and the method comprises the following steps:
selecting a first type of physical port with the highest priority according to the priority information of the available physical ports;
and selecting a first physical port corresponding to the shortest path from the first class of physical ports.
The embodiment of the invention also provides a device for forwarding the traffic of the stacking system, which comprises:
the judging module is used for judging whether an output interface of a data message is a polymerization link port of the stacking system or not after a first member device of the stacking system receives the data message;
the device comprises a selection module, a first member device and a second member device, wherein the selection module is used for selecting a first physical port corresponding to a shortest path according to an aggregation forwarding table maintained by the first member device when an outgoing interface of a data message is an aggregation link port of a stacking system, and the aggregation forwarding table records a plurality of available physical ports corresponding to the aggregation link port and distance values of paths from the device to the member devices to which the available physical ports belong;
and the forwarding module is used for forwarding the data message through the first physical port.
Wherein, the device still includes:
and the first maintenance module is used for determining an available physical port corresponding to the aggregation link port, calculating a distance value from the member device to a path of the member device to which each available physical port belongs, and generating and maintaining an aggregation forwarding table according to the distance value.
Wherein, the maintenance module includes:
the stacking system comprises a first unit, a second unit and a third unit, wherein the first unit is used for acquiring first fault information of member equipment detected by the stacking system;
and the second unit is used for determining an available physical port corresponding to the aggregation link port according to the first fault information.
Wherein, the device still includes:
the acquisition module is used for acquiring second fault information of the physical port detected by the stacking system;
and the second maintenance module is used for updating the available physical ports corresponding to the aggregation link ports according to the second fault information, and generating and maintaining an aggregation forwarding table according to the distance value from the member device to the updated path of the member device to each available physical port.
Wherein, the device still includes:
the recording module is used for recording the priority information corresponding to each available physical port;
the selection module comprises:
a third unit, configured to select a first type of physical port with a highest priority according to priority information of available physical ports;
and the fourth unit is used for selecting the first physical port corresponding to the shortest path from the first class of physical ports.
The scheme of the invention at least comprises the following beneficial effects:
in the method for forwarding traffic of a stacking system according to the embodiment of the present invention, an aggregation forwarding table is established in each member device according to a distance value of a path between each member device in the stacking system and priority information configured by a user for the member device, so that when an outgoing interface of a data packet received by a first member device in the stacking system is an aggregation link port, a first physical port corresponding to a shortest path may be selected from the aggregation forwarding table of the device to forward the data packet, thereby resolving uncertainty of cross-device link aggregation traffic forwarding and reducing occupation of stacking bandwidth.
Drawings
FIG. 1 is a schematic diagram of a stacking system in the prior art;
FIG. 2 is a functional diagram illustrating local priority forwarding in a stacking system according to the prior art;
FIG. 3 is a flowchart illustrating steps of a method for forwarding traffic of a stack system according to an embodiment of the present invention;
fig. 4 is a schematic networking diagram of a stacking system of three member devices in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for forwarding traffic of a stacking system according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a method and a device for forwarding traffic of a stacking system, aiming at the problems of uncertainty of forwarding aggregated traffic of a cross-device link and waste of stacking bandwidth in the prior art, and the method and the device can solve the uncertainty of forwarding the aggregated traffic of the cross-device link and reduce the occupation of the stacking bandwidth.
As shown in fig. 3, an embodiment of the present invention provides a method for forwarding traffic of a stack system, where the method includes:
step 31, after receiving a data message, a first member device of the stacking system determines whether an output interface of the data message is a aggregation link port of the stacking system;
step 32, when the outgoing interface of the data packet is an aggregation link port of the stacking system, selecting a first physical port corresponding to the shortest path according to an aggregation forwarding table maintained by the device, where the aggregation forwarding table records a plurality of available physical ports corresponding to the aggregation link port and distance values of paths from the device to member devices to which the available physical ports belong;
and step 33, forwarding the data message through the first physical port.
In the specific embodiment of the present invention, the aggregation link port of the stacking system corresponds to the physical port of each member device, and after the initialization of the stacking system device is completed, the topology structure diagram of the stacking system and the configured weight or priority of each member device are queried. And according to the topology structure diagram of the stacking system and the device weight or priority, calculating the distance value of the path from any member device to each member device by using a shortest path algorithm (such as Dijkstra algorithm and Floyd algorithm), and storing each calculated distance value and a corresponding physical port in each member device in the form of an aggregation forwarding table. Therefore, when the output interface of the data message received by the first member device is the aggregation link port, the first physical port corresponding to the shortest path can be selected from the aggregation forwarding table of the first member device to forward the data message.
In a specific embodiment of the present invention, illustrated as a specific example, as shown in fig. 4, three member devices (A, B and C) constitute a networking example of a stacked system, on which a1, B1, B2 and C1 ports are configured to constitute cross-device aggregation link ports. Assuming that the distances between devices a and B, and B and C are all 1, the Trunk table settings of device a, device B and device C are shown in tables 2, 3 and 4, respectively. When the outgoing interface of the traffic entering the device a is the aggregation link port, the actual physical outgoing interface is calculated by the HASH algorithm in the physical port with the distance of 0 to obtain an outgoing interface a1, and the traffic is forwarded out from the a1 port. When the link a1 fails, the Trunk forwarding tables of the device a, the device B, and the device C are respectively set as shown in table 5, table 6, and table 7, and the HASH algorithm calculates the interfaces in the physical ports with the distance of 1, so that the traffic is forwarded through the ports B1 and B2, thereby effectively reducing the stack bandwidth occupation between the device B and the device C.
| P/L | Member |
| 0 | A1 |
| 1 | B1 |
| 1 | B2 |
| 2 | C1 |
Table 2: trunk table of device a
| P/L | Member |
| 0 | B1 |
| 0 | B2 |
| 1 | A1 |
| 1 | C1 |
Table 3: trunk table of device B
| P/L | Member |
| 0 | C1 |
| 1 | B1 |
| 1 | B2 |
| 2 | A1 |
Table 4: trunk table of device C
| P/L | Member |
| 1 | B1 |
| 1 | B2 |
| 2 | C1 |
Table 5: trunk table of device a
| P/L | Member |
| 0 | B1 |
| 0 | B2 |
| 1 | C1 |
Table 6: trunk table of device B
| P/L | Member |
| 0 | C1 |
| 1 | B1 |
| 1 | B2 |
Table 7: trunk table of device C
In the above embodiment of the present invention, the maintaining of the aggregation forwarding table includes: determining available physical ports corresponding to the aggregation link ports, calculating the distance value from the member device to the path of the member device to which each available physical port belongs, and generating and maintaining an aggregation forwarding table according to the distance value.
In a specific embodiment of the present invention, before generating and maintaining respective aggregation forwarding tables according to a distance value, each member device may first determine whether a configured physical port belongs to the same member device, if the configured physical port is a cross-device aggregation link port, query, using the specific physical port as a key, a distance value of a path from the member device to each member device stored in the device, and sort the physical ports of each member device according to a manner that the distance value is from small to large, each member device creates and fills an aggregation forwarding table according to the sorted physical port order, and if the configured physical port is not a cross-device aggregation link port, does not sort the physical port.
Further, in the foregoing embodiment of the present invention, the step of determining an available physical port corresponding to the aggregation link port includes: acquiring first fault information of member equipment detected by a stacking system; and determining an available physical port corresponding to the aggregation link port according to the first fault information.
In the specific embodiment of the present invention, a failure detection mechanism of a stack system detects whether a member device fails, if it detects that a certain member device fails, all member devices query their own aggregation forwarding table to determine whether a physical port of the failed member device exists, and if the physical port of the failed member device exists, all physical ports of the failed member device are deleted, thereby determining an available physical port corresponding to an aggregation link port, and then recalculate a distance value of a path from the member device to which each available physical port belongs, and sort the remaining physical ports according to a sequence of the distance values from small to large, thereby generating and maintaining a new aggregation forwarding table.
In the above embodiment of the present invention, the maintaining of the aggregation forwarding table further includes: acquiring second fault information of the physical port detected by the stacking system; and updating the available physical ports corresponding to the aggregation link ports according to the second fault information, and generating and maintaining an aggregation forwarding table according to the distance value from the member device to the updated path of the member device to which each available physical port belongs.
In the specific embodiment of the present invention, a failure detection mechanism of a stack system detects whether a physical port fails, if a physical port fails, all member devices query whether a failed physical port exists in an aggregation forwarding table of the stack system, and if a failed physical port exists, delete the failed physical port from the aggregation forwarding table, and sort the remaining physical ports according to a sequence of a distance value from small to large, thereby generating and maintaining a new aggregation forwarding table.
In the above embodiment of the present invention, the maintaining of the aggregation forwarding table further includes: recording priority information corresponding to each available physical port; according to the aggregation forwarding table maintained by the equipment, a first physical port corresponding to the shortest path is selected, and the method comprises the following steps: selecting a first type of physical port with the highest priority according to the priority information of the available physical ports; and selecting a first physical port corresponding to the shortest path from the first class of physical ports.
In the specific embodiment of the present invention, it is detected whether a user configures priority information for forwarding by a member device, and if the priority information for forwarding is configured, the available physical ports are sorted according to the priority information configured by the user from high to low in order of priority, and of course, for a physical port without configured priority, the physical ports are sorted according to the order of the distance value of the path from small to large, so as to obtain a new aggregation forwarding table, so that the member device can forward a data packet according to the priority information configured by the user. Of course, if there are multiple first type physical ports with the highest priority, the first physical port corresponding to the shortest path may be selected from the first type physical ports to forward the data packet.
In the specific embodiment of the present invention, it is further explained by taking the above example as an example, when the user configures the forwarding priority of each member device on the member device in order to accurately control the forwarding traffic, the larger the number is, the higher the priority is. Assuming that the user configures device a with priority 2, device B with priority 3, and device C with priority 1 on device B, the Trunk table settings on device a, device B, and device C are shown in table 8, table 9, and table 10, respectively. The Trunk tables on the member devices A and C are still the Trunk tables obtained by the calculation according to the shortest path, and the Trunk tables on the device B are the Trunk tables obtained by firstly sorting according to the priority and then sorting according to the shortest path. Thus, when the outgoing interface of the traffic entering the device B is the aggregation link port, the interface is first calculated from the high-priority physical port, and the outgoing interface is obtained as B1 or B2, and the traffic is forwarded out from the outgoing interface. When the links B1 and B2 fail, the Trunk tables of the device a, the device B, and the device C are set as shown in table 11, table 12, and table 13, respectively, at this time, the traffic entering the device B finds the interface from the device with priority 2 to obtain a1, and the traffic is forwarded from a1, so that the purpose of accurately controlling traffic forwarding according to priority is achieved. Meanwhile, the flow forwarding on the equipment A and the equipment C still forwards according to the shortest path, and the occupation of stacking bandwidth is reduced.
| P/L | Member |
| 0 | A1 |
| 1 | B1 |
| 1 | B2 |
| 2 | C1 |
Table 8: trunk table of device a
| P/L | Member |
| 3 | B1 |
| 3 | B2 |
| 2 | A1 |
| 1 | C1 |
Table 9: trunk table of device B
| P/L | Member |
| 0 | C1 |
| 1 | B1 |
| 1 | B2 |
| 2 | A1 |
Table 10: trunk table of device C
| P/L | Member |
| 0 | A1 |
| 2 | C1 |
Table 11: trunk table of device a
| P/L | Member |
| 2 | A1 |
| 1 | C1 |
Table 12: trunk table of device B
| P/L | Member |
| 0 | C1 |
| 2 | A1 |
Table 13: trunk table of device C
The P/L in tables 2 to 13 is a reference value for selecting a physical port, the P/L in tables 2, 3, 4, 5, 6, 7, 8, 10, 11 and 13 is an assumed distance value, and the P/L in tables 9 and 12 is a priority value.
In order to better achieve the above object, as shown in fig. 5, an embodiment of the present invention further provides an apparatus 50 for forwarding traffic of a stack system, where the apparatus 50 includes:
the determining module 51 is configured to determine whether an output interface of a data packet is an aggregation link port of the stacking system after a first member device of the stacking system receives the data packet;
a selecting module 52, configured to select, when an outgoing interface of a data packet is an aggregation link port of a stack system, a first physical port corresponding to a shortest path according to an aggregation forwarding table maintained by a first member device, where a plurality of available physical ports corresponding to the aggregation link port and distance values of paths from the device to member devices to which the available physical ports belong are recorded in the aggregation forwarding table;
and the forwarding module 53 is configured to forward the data packet through the first physical port.
Wherein the apparatus 50 further comprises:
and the first maintenance module is used for determining an available physical port corresponding to the aggregation link port, calculating a distance value from the member device to a path of the member device to which each available physical port belongs, and generating and maintaining an aggregation forwarding table according to the distance value.
Wherein, the maintenance module includes:
the stacking system comprises a first unit, a second unit and a third unit, wherein the first unit is used for acquiring first fault information of member equipment detected by the stacking system;
and the second unit is used for determining an available physical port corresponding to the aggregation link port according to the first fault information.
Wherein the apparatus 50 further comprises:
the acquisition module is used for acquiring second fault information of the physical port detected by the stacking system;
and the second maintenance module is used for updating the available physical ports corresponding to the aggregation link ports according to the second fault information, and generating and maintaining an aggregation forwarding table according to the distance value from the member device to the updated path of the member device to each available physical port.
Wherein the apparatus 50 further comprises:
the recording module is used for recording the priority information corresponding to each available physical port;
the selection module 52 includes:
a third unit, configured to select a first type of physical port with a highest priority according to priority information of available physical ports;
and the fourth unit is used for selecting the first physical port corresponding to the shortest path from the first class of physical ports.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for forwarding traffic in a stack system, comprising:
after receiving a data message, a first member device of the stacking system judges whether an output interface of the data message is a polymerization link port of the stacking system;
when the output interface of the data message is an aggregation link port of the stacking system, selecting a first physical port corresponding to a shortest path according to an aggregation forwarding table maintained by the device, wherein a plurality of available physical ports corresponding to the aggregation link port and distance values of paths from the device to member devices to which the available physical ports belong are recorded in the aggregation forwarding table;
and forwarding the data message through the first physical port.
2. The method of claim 1, wherein the maintaining of the aggregated forwarding table comprises:
determining an available physical port corresponding to the aggregation link port, calculating a distance value from the member device to a path of the member device to which each available physical port belongs, and generating and maintaining the aggregation forwarding table according to the distance value.
3. The method of claim 2, wherein the determining the available physical port corresponding to the aggregate link port comprises:
acquiring first fault information of member equipment detected by a stacking system;
and determining an available physical port corresponding to the aggregation link port according to the first fault information.
4. The method of claim 2, wherein the maintaining of the aggregated forwarding table further comprises:
acquiring second fault information of the physical port detected by the stacking system;
and updating the available physical port corresponding to the aggregation link port according to the second fault information, and generating and maintaining the aggregation forwarding table according to the distance value from the member device to the updated path of the member device to each available physical port.
5. The method of claim 1,
the maintaining of the aggregated forwarding table further comprises: recording priority information corresponding to each available physical port;
the selecting a first physical port corresponding to a shortest path according to the aggregation forwarding table maintained by the device includes:
selecting a first type of physical port with the highest priority according to the priority information of the available physical ports;
and selecting a first physical port corresponding to the shortest path from the first class of physical ports.
6. An apparatus for traffic forwarding for a stacked system, comprising:
the judging module is used for judging whether an output interface of a data message is a polymerization link port of the stacking system or not after a first member device of the stacking system receives the data message;
a selecting module, configured to select, when an egress interface of the data packet is an aggregation link port of the stacking system, a first physical port corresponding to a shortest path according to an aggregation forwarding table maintained by a first member device, where the aggregation forwarding table records multiple available physical ports corresponding to the aggregation link port and distance values of paths from the device to member devices to which the available physical ports belong;
and the forwarding module is used for forwarding the data message out through the first physical port.
7. The apparatus of claim 6, wherein the apparatus further comprises:
and the first maintenance module is used for determining an available physical port corresponding to the aggregation link port, calculating a distance value from the member device to a path of the member device to which each available physical port belongs, and generating and maintaining the aggregation forwarding table according to the distance value.
8. The apparatus of claim 7, wherein the maintenance module comprises:
the stacking system comprises a first unit, a second unit and a third unit, wherein the first unit is used for acquiring first fault information of member equipment detected by the stacking system;
and a second unit, configured to determine, according to the first fault information, an available physical port corresponding to the aggregation link port.
9. The apparatus of claim 7, wherein the apparatus further comprises:
the acquisition module is used for acquiring second fault information of the physical port detected by the stacking system;
and the second maintenance module is configured to update the available physical port corresponding to the aggregation link port according to the second failure information, and generate and maintain the aggregation forwarding table according to the distance value from the member device to the updated path of the member device to which each available physical port belongs.
10. The apparatus of claim 6,
the device further comprises: the recording module is used for recording the priority information corresponding to each available physical port;
the selection module comprises:
a third unit, configured to select a first type of physical port with a highest priority according to priority information of available physical ports;
and the fourth unit is used for selecting the first physical port corresponding to the shortest path from the first class of physical ports.
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| CN201410741242.6A CN105743801A (en) | 2014-12-08 | 2014-12-08 | Method and device of flow forwarding of stack system |
| PCT/CN2015/093232 WO2016091029A1 (en) | 2014-12-08 | 2015-10-29 | Method and apparatus for forwarding traffic of stacking system |
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| CN101599909A (en) * | 2009-07-08 | 2009-12-09 | 杭州华三通信技术有限公司 | The method and apparatus that a kind of flow is transmitted |
| CN101651680A (en) * | 2009-09-14 | 2010-02-17 | 杭州华三通信技术有限公司 | Network safety allocating method and network safety device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107547243A (en) * | 2017-05-24 | 2018-01-05 | 新华三技术有限公司 | A kind of message forwarding method and device |
| CN107547243B (en) * | 2017-05-24 | 2021-04-02 | 新华三技术有限公司 | Message forwarding method and device |
| CN108199986A (en) * | 2017-12-15 | 2018-06-22 | 瑞斯康达科技发展股份有限公司 | A kind of data transmission method, stack equipment and pile system |
| CN108600100A (en) * | 2018-07-13 | 2018-09-28 | 新华三技术有限公司合肥分公司 | Member port choosing method and device |
| CN108600100B (en) * | 2018-07-13 | 2021-09-07 | 新华三技术有限公司合肥分公司 | Member port selection method and device |
| CN109039424A (en) * | 2018-07-18 | 2018-12-18 | 北京邮电大学 | Network communication path determines method, apparatus and electronic equipment between Satellite |
| CN111224803A (en) * | 2018-11-23 | 2020-06-02 | 中兴通讯股份有限公司 | Multi-master detection method in stacking system and stacking system |
| CN111224803B (en) * | 2018-11-23 | 2023-08-04 | 中兴通讯股份有限公司 | Multi-master detection method in stacking system and stacking system |
| CN112087376B (en) * | 2019-06-14 | 2023-03-14 | 中兴通讯股份有限公司 | Load sharing method and device |
| CN112087376A (en) * | 2019-06-14 | 2020-12-15 | 中兴通讯股份有限公司 | Load sharing method and device |
| CN111030937A (en) * | 2019-12-16 | 2020-04-17 | 迈普通信技术股份有限公司 | Message forwarding method, device and storage medium |
| CN111740917A (en) * | 2020-03-23 | 2020-10-02 | 北京京东尚科信息技术有限公司 | Message forwarding method and device |
| CN114513478A (en) * | 2022-01-07 | 2022-05-17 | 锐捷网络股份有限公司 | Anti-lost method and device for stacking system |
| CN114374659A (en) * | 2022-01-18 | 2022-04-19 | 苏州盛科科技有限公司 | Method, device and storage medium for realizing local priority forwarding in stacking system |
| CN114760245A (en) * | 2022-03-28 | 2022-07-15 | 新华三技术有限公司合肥分公司 | Stacking member equipment and method for forwarding broadcast message by stacking member equipment |
| CN114760245B (en) * | 2022-03-28 | 2024-02-09 | 新华三技术有限公司合肥分公司 | Stacked member equipment and method for forwarding broadcast message thereof |
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| WO2016091029A1 (en) | 2016-06-16 |
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