WAN design. Due to bandwidth requirements, many multimedia applications require a
centralized server.
place the enterprise server close to the network backbone.
servers. Simply stated, super servers have two to three times the speed, memory, and data
storage of a regular enterprise server.
environment. These applications demand that a certain quality of service be delivered to the
desktop. The CCDP must ensure that network switch and router devices do not serve as a
bottleneck to servers and high-power client end stations that have Fast Ethernet and Gigabit
Ethernet capability.
broadcast traffic. Microsoft manufactures the most popular and widely used network operating
systems, Windows 2000 and its predecessor, Windows NT. Both regularly use broadcasts to
determine the presence of domain peers and services in the network neighborhood. The Novell
networks use service advertising protocols (SAPs) to advertise the services available
throughout the network. Reducing the protocols that generate broadcast traffic is one way of
minimizing broadcast traffic. Using routers to create subnets is another way of controlling
broadcast traffic. In addition to controlling broadcast traffic, the issue of broadcast radiation
must be dealt with. Broadcast radiation can occur when the ambient level of broadcasts
generated by the higher-layer protocols in the network restricts the number of nodes that the
network can support. The effects of broadcast radiation can be so severe that an end station can
spend all its CPU power on processing broadcasts.