Information Technology Reference
In-Depth Information
for ward DHCP broadc asts and other t y pe s of s er v ice s. As the s ite g row s, you need the
structure provided by the Enterprise Composite Network model. Figure3-13 shows a
typical architecture of a remote LAN.
Server Farm/Data Center
Campus Core/
Building
Distribution
Building
Access
Figure 3-12
Medium-Size Campus LAN
WAN
Figure 3-13
Remote Office LAN
Server Farm Module
The server farm or data center module provides high-speed access to servers for the cam-
pus networks. You can attach servers to switches via Gigabit Ethernet or 10GE. Some
campus deployments might need EtherChannel technology to meet traffic requirements.
Figure 3-14 shows an example of a server farm module for a small network. Servers are
connected via Fast Ethernet or Fast EtherChannel.
The server farm switches connect via redundant uplink ports to the core switches. The
largest deployments might find it useful to hierarchically construct service to the data
center using access and distribution network devices.
Server distribution switches are used in larger networks. Access control lists and QoS fea-
ices and to enforce network policies.
