All switches can be divided into managed and unmanaged for Fast Ethernet and Gigabit Ethernet.In its turn, they are divided into various groups and subgroups, according to their performance and capabilities, designed for SOHO sector and Enterprise. There are two types of the managed switches: Stackable switches and switch modular chassis. Stackable switches allow centralized management of multiple switches through one IP address, making it easier to install and configure equipment. Switch modular chassis are flexible, extensible and functional. For example, they allow you to install additional optical modules (specialized or universal SFP mini GBIC) and a fiber optic connection at the switch. Modular switches make it easy to adapt the equipment under the changed requirements.