Understanding stacking technology for switches

Hello, switch stacking technology This is a relatively grounded gas technology, which is common in the actual network deployment process; here, I share with you the stacking technology of switches.

Introduction to stacking technology

First of all, what is stacking? Before you know stacking, you know what VLANs are.  VLANs can be understood from a certain point of view by imagining a physical switch, virtual switches, and multiple broadcast domains. Stacking, on the contrary, means connecting multiple switch devices together over cables. Virtualize into a device.

Stacking technology is another type of technology that extends ports on Ethernet switches and is a non-standardized technology. Mixed stacking is not supported among vendors, stacking mode is developed for vendors, and topology is not supported. The greatest advantage of stacking technology is that it provides simplified local management and manages a set of switches as an object. It provides simplification for users. Management and operation.

Switch stacking is a special connection line provided by the manufacturer, which connects directly from the UP stacked port of one switch to the DOWN stacked port of another switch to expand the number of ports of a single switch. A typical switch can stack 4-9.

In order for switches to meet the number of ports required by large networks, they are usually stacked in large networks. It is important to note that only stackable switches have such ports, namely "UP" and "DOWN". When multiple switches are connected, they can be managed as a single unit device.

Advantage

So what's the benefit of stacking this for our network?

I think there are a few simple overviews:

    1) Simplify configuration and management

    2) Simplify network operations

    3) High Reliability

    4) Strong network scalability

    5) Lower investment costs

    6) Flexible stacking mode

Specifically, we know that after the Huawei switch stack is formed, multiple physical devices virtually become a logical device, our users log on to the stack system through any one member device, and multiple devices present only one IP to the administratorLanding address, the administrator manages and configures all member devices of the stacking system. The members of the stacking system share an IP address and a Mac address.

Secondly, multiple devices in Huawei iStack network form a stack, which can be virtual into a single logical device. The simplified network no longer needs to use protocols such as ring network protocol and VRRP to ensure redundant network backup, thus simplifying the network configuration. At the same time, Huawei switches rely on link aggregation across devices to achieve fast convergence and improve reliability.

Currently, Huawei switches are divided into park switch data center switches and network analyzers. They can face cloud data centers and park networks, and they are suitable for a variety of scenarios and network sizes.

    Thank you for reading and feel free to comment on this article.