Redundant connection management exchanger suitable for exchanger stack and its redundant connection management method

Abstract

The exchanger includes a stack module, a proceesor, and a management module. Several stacked stackable exchanger can be formed a closed loop. The stack module possesses a connection port with upper connecting line, a connection port with lower connecting line and a manual control device. When receiving relinking / cuting off command, the processor indicates the stack module to start up or cut off control bus of lower connection line. If processor generated state of connecting line shows that these stacks of exchangers become state of closed loop, the management module sends out command for cutting off connecting line; other wise the management module sends out command for relinking connection of stack to return back redundancy state. Once manual control device in stack module is activated, the management module, which and stack module are located in same exchanger, owns highest priority, becoming main management module in stack of exchanger.

Description

technical field [0001] The invention relates to a computer network, in particular to a stackable switch capable of providing flexible stacking and backup management. Background technique [0002] A typical computer network consists of multiple nodes (computers), a connection medium (wired or wireless), and special network devices such as routers and hubs. Take the Internet (Internet) as an example. Due to the collective action of these unit parts, a computer can transmit information to another computer that may be located on the other side of the world. A switch is a fundamental part of most networks, allowing several users to communicate on the network at the same time without each other slowing down the others. Just as routers allow different networks to communicate with each other, switches allow different nodes in the network to communicate directly with each other in a smooth and efficient manner. [0003] The use of stackable switches allows network administrators to...

AI Technical Summary

Problems solved by technology

[0004] However, if any switch or any stack link in the switch stack 100 fails, it will lead to the collapse of the entire stack

This is because the switch stack 100 is configured as a single chain stack as shown in FIG. 1. If there is no redundant stack connection (redundant link), the rest of the normal switches still cannot be formed before the network administrator manually eliminates the problem. available stack

To make matters worse, in a switch stack that uses a single management module, the failure of a single management module can render a considerable portion of the network, or even the entire network, inoperable

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