TWI232659B - Method for managing a stack of switches - Google Patents

Abstract

A method for managing a stack of switches is provided. The method comprising the steps of: building a stack of switches; sending out advertisement packets which contains topology information to both stacking links to accomplish topology discovery; electing a switch as master switch, and the other switches as slave switches; configuring the slave switches via the master switch; obtaining the ports statistics of slave switches via the master switch; obtaining the status of slave switches via the master switch; Via the circuit method of the present invention, users can manage all the slave switches conveniently via the master switch.

Description

I232659_ V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a Φ; β Norse, earth-stacked switch manager J replacement method, especially related to-a kind of [prior art] B The stack A of the Ethernet switch, θ and the user A together, can be combined to provide a #Ethernet switch to the user to provide the Ethernet switch. For more Ethernet switches, the JL becomes more important; Enterprise network B and broadband networking that support stacking functions ^ Use: ^ "External" network management is required in stacked switches; "j is getting more and more attention. But openly in the heap! Called γλ national intellectual property Bureau in April _; a clear patent application, basin = Λ method of stacking existing Ethernet switches "issued a method to send Ethernet switches to rich, the method is specifically: Gigabit serial signal, and then: Thousands :: The signal is converted into the Ethernet switch stack through the conversion circuit and transmitted via the cable to the Ethernet switch that needs to be exchanged with the parent to receive the ethernet Ethernet switch; and when Ethernet = come thousand Terabit serial communication; = —Ethernet switch, change j Gigabit parallel conversion: conversion circuit over one thousand, by the technique provided by the invention may be a parent J !: Ethernet switch. ~ Did not propose how to effectively manage the stack == :: ;; __J to show the stack of the Ethernet switch machine "= apply for the public switch of the Ethernet switch, + 2 > method This method is specifically: Page 5 T232659 V. Description of the invention (2) A management party that can effectively manage switches in a stack. [Summary] In order to solve the above technical problems, the present invention provides a parent switch management method. The stacking switch management method-a stacking step : (A) Connect multiple stackable switches by stacking lines ^ The next step is to connect the topological structure to establish a stack; (b) 夂 _ Press the specific switch to send it to the neighbor switch弋 When the switch is the master switch, the remaining switches are: one of the other switches: the T switch is used to remotely configure the slave switch to obtain the status information of the switch. (10) Hearts, (ί) The master switch provides Switch pair ;: Two: method, you can report conveniently [Implementation] All slave switches in the stack $ are managed. Ii is i J: the main terms involved in the month-some technical terms:-group The main switch of the ': 2 should be physically connected to the connector and the cable: Representative of Dofentian, the rest is exchanged :: 口 ㉟, which is used to manage the stack; 馎 杓 I p Address to manage the slave switch: 埯 w 丄. One of the switches in HSBC, which cannot be managed directly. The stacking described in this manual refers to the stacking switch, which is generally composed of

1232659

V. Description of the invention (3) According to a certain topology, a plurality of independent switches can generally be divided into chrysanthemum factory structures, such as yttrium, yttrium, topological structure), among which strict aisy chained) or ring (ring; Package 2: ϊ: The architecture provides a redundant stacking link. The first figure shows that ^^^ is ranging from one to a dozen. Each exchange # =! A stack consisting of a switch I, in the basin : It contains ΓΓ stacked end π, where-is the upstream end for two to pass through; ΐ;: =: Γ ", used for downlink connection. For example, the connection of bluji j, ° 卩 knife constitutes a daisy chain topology Structure, in addition: two. Redundant lines of _ 卩 form a ring topology. M mode: as shown in the figure, it is the internal logic of the master switch and the slave switch of the present invention. The master switch Both 10 and slave switch 20 include user interface, / 1 0; service modules 1 2 0, 2 2 0; hardware concept layer modules i 3 0, 2 3 0; drive modules 14 0, 24 0; information Library management module 丨 ", 250 and exchange, and inter-communication modules 160 and 26. Among them, the user interface 11 and 21 are used for parent machine replacement and use. In this invention, the user of the slave switch does not communicate with the user interface 2 0 of the slave switch, and when the slave parent switches to the master switch, the user can use the user interface for management ; Service modules 120 and 220 include multiple applications that can provide corresponding services for the switch; and hardware abstract layer (HAL) 130 and 230 are abstractions of the hardware in the switch 'Is used to support various programs and services in the switch; driver modules (Drivers) 140, 240 are used to drive various hardware in the switch; and the database management module (Database Maintaince Protocol, DMP) 1 5 0 2, 50 is used to manage the database in the switch, and the local cache memory

Page 7 1232659 V. Content and operation of invention description (4); inter-switch communication module (Inter_Swi tch

Comnuimcation (ISC) 160, 2 60 is used for communication between the main switch and the switch, and the switch of the main switch asks the switch between the switchboard and the intercity communication board group 160. The communication module 260 is remotely connected, and the packets are connected together in reverse. The master switch can send the command message to the slave switch, and the slave switch uses the response information, event information, and statistical information to communicate between the switches. = Switch. ,,,, 1k ,,,, a Mainly provide the stacking switch management method provided by the present invention. The steps in the next section include: (1) Establishing a stack of a switch under construction \ stacking. Before the transfer, you need to confirm that the connection can be changed, and use the stack port to connect the line key. G. After that, you can detect the switch, send the topology check, and finally you can get and compare the received structure information D. If your own topology detection is replaced The next stacking structure of the machine's stacking topology is stacked. It can respond to information, and the detection package of the detection device pull knot is attached to the device under test. Received that all parent switches of the structure insurance were turned off and caused the stack to fail; then the stack ports were used to connect the uplink ports of a switch, and to ensure that any two switches could be daisy-chained or ring-shaped. Start the stack. The CPU contains a topology detection packet to the neighboring switch, so as to obtain the topology information of the entire stack parameter. The topology information in the topology detection packet has a high priority, so it is discarded. You ’ll then “transmit it to your neighbor ’s parent machine in its own topology” and return to page 8 1232659 V. Description of the invention (5) C: The original switch. The topological information of the entire stack can only be obtained. The whole: The topological information of the stack includes the following parts " stacked connections, such as Lihua chain type or ring type; the number of connected switches, each switch Detailed information, including: the type of switch (second layer 戍;:;): e ^^ o ^ (12G.24G ^ 48G) coffee power, system memory size, etc.), software of the switch (3) The main switch recommends the main six i = r series. The main switch is the representative of the entire stack. The user manages the other switches in the stack by $, the IP address of the machine. -Sorting mechanism to automatically recommend addresses: M system based on the inherent properties of some switches, such as the MAC of the switch (Media Access Contr0 Adress) and the switch in which the slave is at the top of the list is considered the master In another embodiment of the invention, the sorting mechanism can be integrated into the r U package, so ... the detection phase can be selected-the switch machine. Two switches can be used as a slave switch through a user interface and a remote Network management port. Baishi interaction, receiving user demand commands; and can send two-: η to the slave switches in the stack; slaves receive these;: / After the second message α performs the corresponding operation, the response message is returned to the master six If there is an event on the slave switch, it will also be a chance; the content message, page 9 1232659 Five invention description (6) Transmission = master switch. Machine, ·: ;; :::: machine time ', then use the master switch to become the new master switch. The slave switch becomes: 5: change machine; = the first in the sort list to perform the topology detection operation. Some parents change the machine, and re- (4) stack management Users can manage the stack through four consoles, remote TELNET access, remote website access n = f 仃 RS232. Among them, the RS232 console management mode refers to the use of a 1-way SNMP management switch connected through the -KS232 port. The stacking console and this main method are both remote management parties, and both need to use s 1 and then-address. It should be noted that, for safety reasons, the management of the machine needs to be carried out through the main switch, and it is official to change the stack of the father. When the master-swap CPU changes and receives the configuration slave switch, it will send an included and required CPU of the switch. The specific working process: the packet of the message center is sent to the slave in this invention. / 7 for description ^ You can obtain information from the switch and # Λ second reason requirements, the master and the father are efficient in switching, and the master switch can maintain the data of the two = ^ switching. In order to change the machine, the data is used to directly copy the data in the 2 warehouses, and the main communication avoids the supervision requirements of the communication between the switches. This way * the middle time of the master switch. One machine's message: configuration message, the state can have two kinds of information about the parent exchange, and the message records the user's pair of information and statistical information. Among them, the configuration of the configuration. Status messages are

Page] 01232659 V. Description of the invention (7) The operation of the system periodically contains a buffer to take the count value of the state from the switch's punching area. The status information is temporarily delayed: it obtains relevant acquisition statistics, response information, and information. The statistics in a long-range questioning time exceeded. The remote configuration is detailed below. For example, the flow chart of the third set is to integrate the chip status information on the slave exchange, and report its status area to store the status. Its status information data does not need to be stored periodically to reduce the need for statistical information to be exchanged with the master switch. After the corresponding information is obtained from the cache, it is no longer such as the port's message, the master report, etc., and it will call DMP. The statistics are updated, but if the communication between the exchanges is stored for the first time, it will be checked first. If the statistics information is valid when scheduled, it will be connected to the master switch of the exchange state. • DMP The rebate is calculated by the system of each invention. The actual message generated by the other table is cached locally and correspondingly — to verify the remote information, etc., the HAL from the delivery management module needs to be retrieved and stored in It provides a sale from the example provided by the switch. After its approximate work requirements, the next time, if there is a cache, if there is a message, the validity of each deposit is verified, and the program access is updated. In the present invention, the specific process of obtaining a remote data report from a slave switch is illustrated in the present invention with reference to a flowchart, which is a remote configuration of the slave switch according to the present invention. Medium and remote configuration refers to the setting of the master switch according to the user's needs. It is generally implemented by changing the ASIC settings in the slave switch. For example, the port rate of the slave switch can be set remotely. When the master switch receives a remote configuration command from the user through the user interface, its hardware concept layer module will judge it as

Page 111232659, V. Description of the invention (8) A remote operation command, and call the corresponding data interface (step S310);% database management = setting command of the application number of the wheel set (step S32〇) 6 If you set up a command with the corresponding module, set up the command, and communicate between the parent and the switch of the machine; communicate between the switches of the slave switch; = give the slave switch (step to unpack the action (step S34〇n = After the packet is received, the command and parameters of t are taken out by the group and called =, the shell database management program interface (step S35G); HAL echoes the interface of the hardware ^ layer to configure the The specific switch of the slave switch is used to implement the configuration of the slave switch, and the status message after the corpse (Asi0) is sent to the switch's Smp (step S360) is returned to the slave to respond to the response command. Command and send it to the main switch (step 2 exchange = packet I s C receives the packet and decapsulates the packet, 乂, the DMP of the switch exchange takes out the action in step 1 (step S39〇), the main transaction s395), then t / V 二 H #code, and send it to HAL (step: / on the parent The process of changing the device for remote configuration ends. The flow chart is shown in Figure 1. Figure 5 shows the r " II I 2 2 t report of the remote data report of the present invention, which includes reporting the complaint from the switch to the main switch. Information and statistical information. 苴 In the same report, the β interview 4 /, the younger brother 4 is a flow chart from the switch to the master switch. In the design of the present invention, the ML of the slave switch will Periodically collect the statistical information of its terminal σ (step s4i〇), the DMP of the father changing machine creates a report command containing the statistical information (step S4 2 0); the report command is packetized from the switch's I sc and it Transfer to the main switch (step S4 30); the ISC of the main switch receives the command packet; page 2 1232659 5. Description of the invention (9) after the packet 'unpacks the packet (step S4 40); the DMP of the main switch will The statistical information in the report command is stored in the buffer of H a L (step g 4 $ 〇). When the user needs to obtain the statistical information of the slave switch, the master switch will call the HAL API to obtain the statistical information (step S47〇); then the HAL of the master switch The required statistical information is returned from its buffer (step S480). 0 is a schematic diagram of remotely reporting the status information of the port as shown in the fifth figure from the switch in the present invention. First, the HA of the slave switch will receive it periodically. The status of the wooden mouth is #% said (step S 5 1 0); a report command containing the corresponding status information is established from the DP of the switch (step S 5 2 0); the IS £ packet from the switch The report command is transmitted to the main switch (step S5 30); after the iSC of the main switch receives the command packet, it unpacks the packet (step S540); the DMP of the main switch stores the statistical value in the report command In the local buffer (step S55); the main switch periodically calls the HAL API to obtain the corresponding status information (step μ 7 〇); the HAL of the main switch determines that it is a remote operation, and it calls the corresponding DMp Αρι (step S58G); DMP returns to its local buffering step S590). τ j Shaped heart ~ Remote access is packetized and synchronized by 1sc households, and the HAL will not process it until the ISC returns the corresponding number: Set = confirmed second mechanism 'Second missed! / :! Retry and schedule mechanism When the ISC of the main switch does not receive a corresponding response, it will resend the remote access command +, and it will really be 1232659_ V. Invention Description (ίο) After several retries, it returns a failure prompt to the calling function module. Although the present invention is disclosed as above with the preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with this technology can make changes and retouching without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the attached patent application.

Page 14 1232659_ Brief description of the drawings [Simple illustration of the drawings] The first diagram is a schematic diagram of a stacked switch. The second diagram is the schematic diagram of the internal logical architecture of the master switch and the slave switch of the present invention. The third figure is a schematic diagram of the remote configuration process of the present invention. The fourth figure is a flowchart of the remote statistical information report of the present invention. The fifth figure is the status message diagram of the remote report slave switch in the present invention. The main component numbers are stacked. 1 The main switch 10 is the user interface 110, 210 service module 120, 220, the hardware concept layer module 130, 230, and the driving core group 140. 240 database management module 150, 250 inter-switch communication module 160 ^ 260 slave switch 20 ❿

Page 15

Claims (1)

1232659_ VI. Scope of patent application 1. A stacked switch management method, which includes the following steps: (a) connecting a plurality of stackable switches according to a specific topology to establish a stack; (b) each switch sends to a neighboring switch A topology detection package including its own topology information is used for topology detection; (c) one of the switches is elected as the master switch according to the switch's MAC and priority order, and the remaining switches are used as slave switches; (d) the master switch pair Perform remote configuration from the switch; (e) Obtain statistics information of the slave switch by the master switch; (f) Obtain status information of the slave switch by the master switch. 2. The stacking switch management method as described in the application > Item 1, wherein step f (a) further includes the step of establishing a stack according to a daisy-chain topology and structure. 3. The stacking switch management method according to item 1 of the scope of patent application, wherein step (a) further includes the step of establishing a stack according to the ring topology. 4. The stacked switch management method according to item 1 of the scope of patent application, wherein step (b) further includes the following steps: (b 1) comparing the topology information in the received topology detection packet with its own topology node >冓Information; (b 2) If its own priority is high, discard the received detection packet (b3) If its own priority is low, attach its own topology information to the topology detection packet and send it to the neighbor The switch transmits and returns a Page 6 1232659 ------. VI. Patent Application Scope Information to the original exchange. The step 8 (C) of the stacking switch management side described in item 3 of Akiri Sakura also includes red. Set-up-Liubaizhuo follow the method of the method 'steps, call 偌 + brackets. Change the machine as a backup master The database of the exchange and supporting switch requires the master switch to step. When the master switch fails, the database of 2 becomes the new master switch. , Λ standby main switch and ^ ^ The stack switch manager described in the third item of the patent target, where step (d) also includes ..., the 乂 谀 machine & management method, the parent switch receives the used mode module Group call phase "after the configuration command is issued, its hardware profile; the application interface of the corresponding database management module; the database management module establishes a setting command; and exchanges communication between machines. The module packet ^ ^ ^ ^ ^ ^ ^ ^ ^ Switching; 1 P 7, Asia will send it to the inter-switch exchange packet from the parent to the switch; °, After receiving the packet and de-slave the switch The database management module ^ is called the corresponding command of the hardware concept layer and the number of calls and calls the hardware concept layer module call driver ^ Second, from the specific use of the switch; = application program interface to configure the Database management module; Day by day, Asia returns the status message to the database management module of the slave switch ^ ^ ^. Command; Text I — The page has a response to the return code. The response command is sent to 1232659_ __ 6. Scope of patent application Main switch; The inter-switch communication module of the main switch receives the packet and decapsulates the packet. The main switch database management module takes out the return code and transmits it to the hardware concept layer module. 7. The stacked switch management method described in item 5 of the scope of patent application, wherein step (e) further includes the following steps: The hardware concept layer module of the slave switch periodically collects statistical information of its ports; the slave switch Database management module to create a report command containing statistical values \ The inter-switch communication module of the interleaving machine encapsulates the report command and transmits it to the main switch; the inter-switch communication module of the main switch receives the command packet And decapsulating the packet; the database management module of the master switch stores the statistical information in the report command in the buffer of the hardware concept layer module; when the user needs to obtain the statistical information of the slave switch, the master switch will The application program interface of the hardware concept layer module is called to obtain the statistical value. The hardware concept layer module of the master switch returns the required statistical information directly from its buffer. 8. The stacking switch management method according to item 5 of the scope of patent application, wherein step (f) further includes the following steps: Page 18, 1232659. The scope of patent application is from the hardware concept layer module information of the parent machine change. The spoonful report commands are created from the database management module of the parent machine change. The status message is sent from the inter-switch communication module of the switch to the master switch; σ ° P々 and passes it to the inter-switch communication module of the master switch to receive the command remote packet; The database management module stores the report command in a local buffer. The parent switch periodically calls the deer of the hardware concept layer module to obtain the corresponding status information; ~ The hardware concept layer module of the master interface switch of the signal interface determines that it is a remote call corresponding database management module Application programming interface; its Hu Bei repository management module returns status stored in its local buffer 9 · The stacking switch management method according to item 1 of the scope of patent application, further comprising the step of sending an event message from the switch to the master switch. • If the method of stacking switch management described in item 6 of the scope of patent application, $ also includes the step of resending the remote configuration command to the slave switch by the communication module between the master switch and the switch, and after several retries, it prompts failure The steps. 1 1 · The stacking switch management method described in item 1 of the scope of patent application, wherein users can access through R s 2 3 2 console, remote T E L N E T, Page 12 1232659 20 pages