What is "stacked switch "?

A stacked switch is a type of switch. According to the design, this type of switch can be stacked on the other. Different from Rack-mounted switches, such switches can be placed in network cabinets or separately. The functions of stacked switches vary with vendors and platforms. Many stacked switches do not support QoS, multicast, and virtual LAN Management. The stacked switches produced by PureData and DLink support some form of service quality rules. For the features you need, refer to the vendor's technical support instructions.

For access layer (access layer) switching technology, you need to select a switch that supports Virtual LAN, secure transmission protocol STP), and IGMP Internet multicast protocol. In this case, the quality of support services is an additional benefit and does not have to be pursued. I strongly recommend that you apply QoS at the junction of your vswitch. This is the most important part of Service Quality functions, scheduling, and queue.

Additional knowledge:

A switch stack is a dedicated connection cable provided by the manufacturer. The "UP" Stack port of a switch is directly connected to the "DOWN" Stack port of another switch. To expand the number of ports of a single vswitch. Generally, switches can stack 4 ~ 9.

To meet the port quantity requirements of large networks, switches are usually stacked in larger networks. Note that only stackable switches have such ports. The so-called stackable switch means that a switch generally has both "UP" and "DOWN" stacked ports. When multiple switches are connected together, they act like a modular switch. A stacked switch can be managed as a unit device. In general, when there are multiple switches stacked, one of them can be managed switch. You can use the managed switch to manage other "independent switches" in the stacked switch. Stacked switches can easily expand the network and are the most ideal choice for creating a new network.

All switches in the stack can be managed as a whole switch. That is to say, all switches in the stack can be regarded as a switch in the topology. A stack vswitch can be managed as a switch in a unified manner. The switch stack technology uses a dedicated management module and stack connection cable. The advantage of this is that, on the one hand, the user port is added, and a wide broadband link can be established between switches, in this way, the bandwidth used by each user may be wider only when not all ports are in use ). On the other hand, multiple switches can be used as a large switch to facilitate unified management.