1.13. 3.3 LAN Design
LAN technology has changed in the recent year with new
technologies such as technologies as Layer 3 switching, LAN switching, and
VLANs, building campus LANs is becoming more complex than in the past. Today,
the following three technologies are required to build successful campus
networks;
ü Token Ring switchingOffers the same functionality as
Ethernet switching but uses Token Ring technology. You can use a Token Ring
switch as either a transparent bridge or source-route bridge.
ü Copper Data Distributed Interface (CDDI)provides a
single-attachment station (SAS) or dual-attachment station (DAS) to two
Category 5 unshielded twisted-pair (UTP), 100 Mbps RJ-45 connectors.
ü Fiber Distributed Data Interface (FDDI)Provides an SAS or
DAS connection to the FDDI
ü Backbone network using two multimode, media interface
connector (MIC) fiber- optic connections.
"An office network consist of a Local Area Network (LAN) or group
of LANs that all connected into one enterprise network. (Cisco Documentation,
2006).
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