CHAPTER 19

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1. The type of network element used to interconnect two LANs depends on the protocols used in the two LANs. If both LANs run the same protocols, there is no need for any protocol conversion. If the LANs use different protocols, a network element needs to do the protocol conversion.

2. The earlier routers were only to handle the protocol conversion for data application. Nowdays, routers are capable of handling voice/fax/video services as well. Cisco's AVVID (Architecture for Voice, Video, and Integrated Data) supports multimedia application and the routers are capable of protocol conversion between the PSTN and the Internet. Routers now support IP Version 6.

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