In Cisco networking, the term "SFP" stands for "Small Form-Factor Pluggable." SFP is a compact, hot-swappable transceiver module that is commonly used in Cisco networking equipment. These modules provide a standardized form factor for various types of optical and electrical transceivers, allowing for flexibility in configuring and expanding network connections.

The SFP modules are designed to support various types of connections, including fiber optic and copper, and they can operate at different data rates. Cisco SFP modules are widely used in switches, routers, and other networking devices to enable connectivity over short or long distances, depending on the specific type of SFP module used.

Cisco offers a range of SFP modules to address different networking requirements, and users can select the appropriate SFP module based on factors such as data rate, distance, and media type (e.g., multimode fiber, single-mode fiber, or copper).

For example, common types of Cisco SFP modules include:

1. Cisco GLC-SX-MM: SFP module for short-range multimode fiber connections.

2. Cisco GLC-LH-SM: SFP module for long-range single-mode fiber connections.

3. Cisco GLC-T: SFP module for copper (Twisted Pair) connections.

These SFP modules are inserted into SFP ports on Cisco networking equipment, providing a modular and scalable approach to configuring network connections. The ability to hot-swap SFP modules allows for easy upgrades and replacements without disrupting network operation.