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完成本中心的 CCNA 課程，你便可建設到下列的網路環境 (可按圖放大)：
1. OSI Reference Model
1.1 Background
1.2 OSI Layers
1.3 Layers Interaction (交互作用)
1.4 Benefits (好處) Provided by OSI Reference Model
2. Ethernet (以太網)
2.1 Logical Bus Design
2.2 Logical Switching (交換) Design
2.3 Common Forms of UTP (Unshielded Twisted Pair，非屏蔽雙絞線) Cable
2.4 Rollover (翻轉) Console (控制臺) Cable
2.5 Half-duplex (半雙工) Ethernet and Full-duplex (全雙工) Ethernet
2.6 Cisco Switch Port Status LED (燈)
3. Detail Concepts on Logical Switching
3.1 Ethernet Addressing
3.2 Switching Mechanism (機制)
3.3 More about Address Table
3.4 Exercises about Address Table
3.5 Broadcast Domain (廣播域)
4. Features Provided By Cisco Switches
4.1 Spanning Tree Protocol (STP, which is standardized as IEEE 802.1d)
4.2 Switch Management
4.3 Configuration Files and File Systems
4.4 Virtual (虛擬) Local Area Network (VLAN)
4.5 VTP (VLAN Trunking Protocol)
4.6 InterVLAN Routing
4.7 Static Entries in MAC Address Table
4.8 Port Security
4.9 EtherChannel
5. IP Addressing
5.1 Structure (結構) of IP Address
5.2 Concept of Binary Number
5.3 Identifying (辨認) the Network ID in an Environment (環境) without Subnetting (子網路化)
5.4 Use of Subnet Mask (子網路遮罩)
5.5 Possible Values in an Octet of a Subnet Mask
5.6 Subnetting (子網路化)
5.7 Questions of IP Addressing
5.8 VLSM (Variable Length (不定長度) Subnet Mask)
6. TCP/IP
6.1 Transmission Control Protocol (TCP)
6.2 User Datagram Protocol (UDP)
6.3 Internet Protocol (IP)
6.4 Address Resolution Protocol (ARP)
6.5 Internet Control Message Protocol (ICMP)
7. Overview (概論) of Cisco Routers
7.1 Memory
7.2 Interfaces
7.3 DCE (Data Communication Equipment) and DTE (Data Terminal Equipment)
8. Basic Router Management
8.1 Features in Command Line Interface
8.2 Configuring Basic Settings of a Router
8.3 Obtaining Hardware Configuration and Software Version of the Router
8.4 Backing Up the Startup-configuration/Running-configuration
8.5 Backing Up the Flash Memory IOS
8.6 Upgrading Flash Memory IOS
9. Static Routing (靜態路由)
9.1 Route Entries for Directly Connected Networks
9.2 Static Routing Entries
9.3 Static Default Routing
10. Dynamic Routing (動態路由)
10.1 Introduction
10.2 Mechanism (機制) of Distance Vector Routing Protocols
10.3 Routing Information Protocol (RIP)
10.4 Enhanced Interior Gateway Routing Protocol (EIGRP)
10.5 Open Shortest Path First (OSPF)
11. Access Lists (存取清單)
11.1 Filtering Logic (過濾邏輯)
11.2 Access List Settings
11.3 Access List Types
11.4 Access List for Inbound / Outbound Data
11.5 Creating an IP Standard Access List and Applying it to an Interface
11.6 Adding a New Statement to an Access List
11.7 Removing the Application of an IP Standard Access List from an Interface
11.8 Creating an IP Extended Access List and Applying it to an Interface
11.9 One More Example on Filtering Data Traffic
11.10 Named Access List
12. Wide Area Networking (WAN) Protocols
12.1 High-level Data Link Control (HDLC)
12.2 Point-to-Point Protocol (PPP)
12.3 Configuring Encapsulations for Serial Interfaces
12.4 Configuring PPP Authentication
13. Cisco Discovery Protocol (CDP)
14. NAT, DHCP and NTP
14.1 NAT (Network Address Translation) 背景
14.2 Main Advantage of Using NAT
14.3 Dynamic NAT with Overload (負荷)
14.4 Configuration of IP Routing
14.5 Configuration of Dynamic NAT with Overload
14.6 Configuration of Static NAT
14.7 Configuration of DHCP (Dynamic Host Configuration Protocol)
14.8 Configuration of NTP (Network Time Protocol)
14.9 DHCP Conflict (抵觸)
15. IP Version 6
15.1 Overview
15.2 IPv6 Addressing Representation
15.3 IPv6 Basic Configuration
15.4 IPv6 Static Route
15.5 More About IPv6 Addressing
15.6 Configuration of OSPFv3
15.7 IPv6 Anycast
15.8 IPv4 to IPv6 Transition (演變) Strategies (策略)
15.9 GRE (Generic Routing Encapsulation) Tunneling
16. SSH (Secure SHell) Access
17. SYSLOG (System Message Logging系統訊息記錄)
17.1 SYSLOG to Console
17.2 SYSLOG to a Server
18. SNMP (Simple Network Management Protocol)
18.1 SNMP Overview
18.2 SNMP Versions
18.3 SNMP Sample Configurations
19. QoS (Quality of Service)
19.1 Introduction to VoIP (Voice over IP)
19.2 QoS Overview
19.3 IntServ Model
19.4 DiffServ Model
19.5 Congestion Avoidance
19.6 Policing
19.7 Shaping
19.8 VoIP Settings for Cisco Switch
20. IP SLA (Service Level Agreement)
21. AAA with TACACS+ and RADIUS
22. Multiprotocol Label Switching (MPLS)
22.1 Background Knowledge
22.2 MPLS Basics
23. Software Defined Networking (SDN)
24. Hot Standby Routing Protocol (HSRP)
24.1 HSRP Overview
24.2 HSRP Configuration
25. Border Gateway Protocol (BGP)
25.1 Autonomous System (AS，自主系統)
25.2 Usage of BGP
25.3 Basic Configuration of BGP
26. Password Recovery
27. Miscellaneous (雜項)
27.1 More about DNS
27.2 Split Horizon (水平分割) --- A Routing Loop Avoidance Mechanism (繞圈防止機制)
27.3 Cut-through and Store-and-forward Switching Modes
27.4 Collision Domain (踫撞域)
27.5 User Inactivity Timer
Supplement --- Internet、WAN Link 及 VPN 的關係與分別
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