Catalyst Switch Stacks can be created using Cisco StackWise. Multiple switches become a logical switching stack with the technologies.
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Layer 2
Layer 2 is the data link layer of the Open Systems Interconnection (OSI) model. Manage data transmissions with layer 2 devices.
Layer 3
Layer 3 is the network layer in the OSI communication model. A router operates at layer 3, determining how to send data packets.
Fibre Uplink
Fibre uplink ports on the latest switches can support gigabit and 10-gigabit connectivity. Use gigabit switches with fibre uplinks to expand a network.
Stackable Switches

Multiply your networking power with stackable networking equipment, including stackable switches to multiply ports and simplify management.
Switch Ports, Port Managers

Identify and obtain the proper switching equipment for your network, from simple 4-port and 8-port switches to many-ported 10G switches.
Gigabit Ethernet Switches

Search a variety of Gigabit Ethernet switches, including multi-port switches in all popular configurations – 8 port, 16 port, 24 port, 48 port Gigabit switches, and more.
Network/Ethernet Switches

Reliable network Ethernet switches from a variety of manufacturers, offering reliable packet switching for networking needs ranging from home use to the enterprise.
802.3az
802.3az is an IEEE standard that offers guidelines for reducing network power consumption. It
802.3ad
Increase Ethernet speeds with 802.3ad processes. The standard defines link aggregation for a wider transmission path and increased redundancy.