Ethernet

Running Head: UNIT Eight PROJECT

Unit Eight Project

Dale Henderson

Kaplan University

IT283-02 Networking with TCP/IP

Anthony Stabile

Unit Eight Project

➢ Table 9-1, match the function on the right with the correct IEEE sublayer of the data link layer.

|Sublayer |Function |

|LLC |A Provides an interface to upper layer |

|MAC |B Controls the placement of frame on the medium |

| |A Remains relatively independent of the physical equipment |

| |B Adds a frame delimiter |

| |B Provides a unique source and destination address |

➢ Concept Questions

1. Why has Ethernet been so successful?

• Simplicity and ease of maintenance

• Ability to incorporate new technologies

• Reliability

• Low cost of installation and upgrade

2. What functions does data encapsulation provide?

• Frame delimiting

• Addressing

• Error detection

3. How does Ethernet handle error detection?

• The sending node calculates a Cyclic Redundancy Check (CRC) of the bits in the frame. The node places the CRC result in the Frame Check Sequence (FCS) field in the trailer part of the Ethernet frame. After receiving a frame, a receiving node calculates its own CRC to compare to the one in the frame. If the two CRC results match, the recipient assumes that the frame arrived without error.

Vocabulary...