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Internet Protocol (IP) is the routed
protocol of the Internet. IP addressing enables packets to be
routed from source to destination using the best available path.
The propagation of packets, encapsulation changes, and
connection-oriented and connectionless protocols are also critical
to ensure that data is properly transmitted to its destination.
This module will provide an overview for each.
The difference between routing and
routed protocols is a common source of confusion for students
learning networking. The two words sound similar but are quite
different. This module also introduces routing protocols which
allow routers to build tables from which to determine the best
path to a host on the Internet.
No two organizations in the world
are identical. In fact, not all the organizations can fit into the
three class system of A, B, and C addresses. However, flexibility
does exist within the class addressing system and it is called
subnetting. Subnetting allows the network administrators to
determine the size of the pieces of the network they will be
working with. Once they have determined how to segment their
network, they can then use the subnet mask to determine what part
of the network each device is on.
Students completing this module should be able to:
- Describe routed (routable)
protocols.
- List the steps of data
encapsulation in an internetwork as data is routed to one or
more Layer 3 devices.
- Describe connectionless and
connection-oriented delivery.
- Name the IP packet fields.
- Describe process of routing.
- Compare and contrast different
types of routing protocols.
- List and describe several
metrics used by routing protocols.
- List several uses for subnetting.
- Determine the subnet mask for a
given situation.
- Use a subnet mask to determine
the subnet ID.
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