Chapter 5. Ethernet Network Review and Analysis

After an Ethernet network has been documented, the next step is to review the physical and logical topology for any performance-impacting issues.

The physical topology review ensures that the standards and practices for Ethernet and IEEE 802.3 networks, such as the “5-4-3” repeater rule and cable lengths, are followed.

The logical topology review looks at the “soft” side of the Ethernet network segment, analyzing traffic patterns, network thresholds, and possible network issues such as congestion.

This chapter examines the information provided by the Cisco router interface and the different types of errors that can be found on an Ethernet segment, what these errors indicate, and what corrective action ...

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