Chapter Summary
The list that follows summarizes the key points that were discussed in this chapter.
?– When expanding a company network, VLANs, VTP, and trunking give a switched
network infrastructure segmentation, ?¬‚exibility, and security.
?– The STP and its successor RSTP resolve bridging loops that are an inherent part of
redundant switched networks.
?– One way to accomplish inter-VLAN routing is to con?¬?gure a ???router on a stick??? using
subinterfaces and 802.1Q trunking.
?– Troubleshooting a switched network requires knowing the characteristics of the
underlying protocols, such as VTP, PVRST+, and 802.1Q.
Network administrators must address many aspects of expanding a switched network as
their business grows. Cisco provides solutions across its suite of internetworking switches
that not only solve many of the immediate problems associated with administrative changes
but also provide scalability, interoperability, increased dedicated throughput, and security.
Review Questions
Use the questions here to review what you learned in this chapter. The correct answers and
solutions are found in the appendix, ???Answers to Chapter Review Questions.
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