"Business Data Communications" Chapter
1
Three different forces have consistently driven the architecture and evolution of data
communications and networking facilities: - ANS-traffic growth, development of new services,
and advances in technology.
Four technology trends are particularly notable and need to be understood by business
information technology managers: - ANS-1. The trend toward faster and cheaper services, in
both computing and communication, continues.
2. Today's networks are more intelligent than ever; they can offer differing levels of quality of
service and a variety of customizable services in the areas of network management and
security.
3. The Internet and Web and associated applications have emerged as dominant features for
both business and personal network landscapes.
4. Mobility is the newest frontier for information communications technology managers, and
popular consumer devices have becomes drivers of the evolution of business networks.
There are two important and related determinants of requirements for business data
communications and networking facilities: - ANS-convergence and unified communications
There are three layers of enterprise communications in convergence: - ANS-1. applications: one
example is multimedia messaging.
2. enterprise services: these services must be available to ensure that users can take full
advantage of the applications that they use.
3. infrastructure: a key aspect of convergence at this level is the ability to carry voice, image,
and video over networks that were originally designed to carry data and voice traffic. This
includes video, image, and text messaging through smartphones.
There are three key benefits of Internet protocol network convergence: - ANS-1. cost savings: A
converged network can provide significant reductions in network administration, maintenance,
and operating costs.
2. effectiveness: Mobile workers can use a virtual private network to remotely access business
applications and communication services on the corporate network.
1
Three different forces have consistently driven the architecture and evolution of data
communications and networking facilities: - ANS-traffic growth, development of new services,
and advances in technology.
Four technology trends are particularly notable and need to be understood by business
information technology managers: - ANS-1. The trend toward faster and cheaper services, in
both computing and communication, continues.
2. Today's networks are more intelligent than ever; they can offer differing levels of quality of
service and a variety of customizable services in the areas of network management and
security.
3. The Internet and Web and associated applications have emerged as dominant features for
both business and personal network landscapes.
4. Mobility is the newest frontier for information communications technology managers, and
popular consumer devices have becomes drivers of the evolution of business networks.
There are two important and related determinants of requirements for business data
communications and networking facilities: - ANS-convergence and unified communications
There are three layers of enterprise communications in convergence: - ANS-1. applications: one
example is multimedia messaging.
2. enterprise services: these services must be available to ensure that users can take full
advantage of the applications that they use.
3. infrastructure: a key aspect of convergence at this level is the ability to carry voice, image,
and video over networks that were originally designed to carry data and voice traffic. This
includes video, image, and text messaging through smartphones.
There are three key benefits of Internet protocol network convergence: - ANS-1. cost savings: A
converged network can provide significant reductions in network administration, maintenance,
and operating costs.
2. effectiveness: Mobile workers can use a virtual private network to remotely access business
applications and communication services on the corporate network.
