Filter
Top Products
IP Security (IPSec) – A suite of protocols that provides
authentication, integrity, and encryption algorithms.
LAN – A group of computers and associated devices sharing a
common communications line or wireless link and typically sharing
the resources of a single processor or server within a small geographic
area (within an office building, for example).
Megabits per second (Mbps) – Data transfer speed measured in
multiples of 1 million bits per second.
Modular (chassis) switch – An upgradable switch with flexible
capabilities.
Quality of service (QoS) – For optimum efficiency, the QoS
component of Cisco IOS Software enables networks to control and
provide predictable service to numerous applications, allocating
priority, dedicating bandwidth, and controlling jitter and latency.
Router – A device that moves data between different network
segments and can look into a packet header to determine the best
path for the packet to travel. Routers can connect network segments
that use different protocols. They also allow all users in a network
to share a single connection to the Internet or WAN.
Small Form Factor Pluggable (SFP) – A flexible port on Cisco Catalyst
switches that can be configured with different types of copper or
Fibre uplinks (sold separately).
Stackable switch – A switch that can stack several physical units
together to make a single logical entity.
Switch – A device that improves network performance by segmenting
the network. When a switch port receives data packets, it forwards
those packets only to the appropriate port for the intended recipient.
This capability further reduces competition for bandwidth between
the clients, servers, or workgroups connected to each switch port.
Uplinks
• High-speed link to the backbone, server, or router.
• Copper uplinks are based on CAT-5 cabling and above, and can
be used for distances of up to 100 meters.
• Fiber-optic uplinks are used for greater distances, or where
copper is not practical.
VPN – A secure tunnel across the Internet through which data,
video, and voice traffic can be transmitted.
WAN – A network that connects devices over great distances, such
as geographical regions. A WAN often connects two or more LANs.
See also LAN.
GLOSSARY (CONTINUED)