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Washington Project:
WAN Design
In
this chapter, you have learned about the WAN
design process, so now you can focus on
interconnecting all the individual Washington
School District sites into a WAN topology that
satisfies the users' requirements.
Complete
the following tasks:
- Create
a WAN design that includes the following:
- Create
a WAN User Requirements Document focusing on
interconnecting all of the individual school
sites into a WAN topology that, meets the
needs suggested in the TCS Overview, your research, and your
Instructor's assignments
- Document
WAN link speeds and upgrade paths
- Create
a model of traffic flow between schools
showing a two- or three-layer WAN hierarchy
- Develop
a list of additional equipment, such as CSUs/DSUs
(channel service units/data service units)
and router interfaces required to implement
the district-wide WAN
- Describe
a list of what kind of redundancy is needed
to ensure WAN uptime
- Summarize
the benefits of your WAN design
- Each
group should develop an overall WAN topology
independent of each other and openly debate
the merits of all of the designs. The outcome
of this process will be a mutually agreed upon
WAN design. Then apply this mutually agreed
upon WAN design to your site (all sites).
- Document
all the router commands necessary for
reconfiguration of local site access routers
in order to implement the WAN design.
- Document
how a WAN implementation affects routing
updates between routers.
- Apply
the CCNA Certification Exam Learning
Objectives to your specific design. This will
require a paragraph on how the learning
objectives relate to your design. Learning
objectives can be grouped together for the
purpose of explanation. In this way, you will
be studying for their CCNA Certification Exam
as you work through the case study.
CCNA
Certification Exam Learning Objectives
(*** are explicit CCNA Exam objectives; unmarked
are knowledge assumed by the exam):
General
- Describe the three major characteristics of a Wide
Area Network
- Describe what a Regional Bell Operation Company
(RBOC) is and what is its function
OSI
Model
- Describe which two layers of the OSI model WANs typically address
- Describe what a WAN data link protocol is and
what is its functio
- Describe the purpose of DTE and DCE devices and
what layer of the OSI model do they apply to
- List four common data link layer WAN
protocols
WAN
- Describe what a Point of Presence (POP) and Central Office (CO) are and what is their function
- Describe how Time Division Multiplexing (TDM)
works and what WAN technology uses it
- Describe what Customer Premise equipment
is
- Describe the data encapsulation process across
a WAN link
- Describe connection oriented and connection
less services across a WAN
- Describe how WAN signaling standards effect the
throughput of Wan services
- Describe what a dedicated leased line is and
how it is used
- Describe what packet switched connections are
and what WAN services use this technology
- Describe what a hierarchical WAN design model
is and what are the major benefits
- Describe the functions of each layer in a three
layer hierarchical WAN model
- Describe why server placement and associated
traffic patterns are important to understand when
designing a WAN
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