| 姓名：查普尔（Chappell L.）著 作者简介： 作品：《Cisco路由器配置导论(英文影印版)》 |
| part 1 introduction to internetworking chapter 1 the internetworking model the evolution of networks 1960s and 1970s:centralized processing 1970s and 1980s:networks 1980s and 1990s:internetworks 1990s:global internetworking network types and devices local-area networks wide-area networks enterprise networks network design goals the layered model why use a layered model application layer presentation layer session layer transport layer network layer data link layer physical layer peer-to-peer communications data encapsulation and headers step 1:build the data step 2:package data for end-to-end transport step 3:append network address in header step 4:append local address in data-link header step 5:convert to bits for transmission summary chapter one test :the internetworking model chapter 2 applications and upper layers application layer presentation layer text and data formatting and conversion graphics formatting and conversion audio and video for 更多 |
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