ScaN_SG_Ch2 - Name Date Chapter 2 LAN Redundancy Study...

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Name __________________________________________________________ Date ________________ Chapter 2 – LAN Redundancy Study Guide Tips for success: While answering the questions read Chapter 2, review the summary, and complete the practice Quiz. After completion of this chapter, you should be able to: Describe the issues with implementing a redundant network. Describe IEEE 802.1D STP operation. Describe the different spanning tree varieties. Describe PVST+ operation in a switched LAN environment. Describe Rapid PVST+ operation in a switched LAN environment. Configure Rapid PVST+ in a switched LAN environment. Identify common STP configuration issues. Describe the purpose and operation of first-hop redundancy protocols. Describe the different varieties of first hop redundancy protocols. Use Cisco IOS commands to verify HSRP and GLBP implementations. 1. Why is redundancy such an important part of the network design? Redundancy is an important part of the network design because it allows a network to be active even if there is a failure in the network. Plus the end users are also not affected by a failure in the network due to redundancy. 2. Explain the three issues caused by layer 2 loops: a. MAC Database instability –copies of the same frame being received on different ports of the switch. Data forwarding can be impaired b. Broadcast storms – each switch may flood broadcasts endlessly c. Multiple frame transmission – multiple copies of the unicast frames can be delivered to the destination.
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