2.熟悉和配置CISCO-IOS设备.ppt

Cisco IOS Software Cisco IOS Software Featres to carry the chosen network protocols and functions Connectivity for high-speed traffic between devices Security to control access and prohibit unauthorized network use Scalability to add interfaces and capability as needed for network growth Reliability to ensure dependable access to networked resources Configuring Network Devices Initial default settings are sufficient for the switch to operate at Layer 2 as a switch. A Cisco device will prompt for initial configuration if there is no configuration in memory. Additional configuration tasks set up the device with the following: Protocol addressing and parameter settings Options for administration and management An Overview of Cisco Device Startup External Configuration Sources Configurations can come from many sources. Configurations will act in device memory. Cisco IOS User Interface Functions Cisco IOS Software EXEC Mode (User) Cisco IOS Software EXEC Mode (Privileged) ? 2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.0—2-* ? 2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.0—2-* CLI is used to enter commands. Operations vary on different internetworking devices. Users type or paste entries in the console command modes. Command modes have distinctive prompts. Enter key instructs device to parse and execute the command. Two primary EXEC modes are user mode and privileged mode. There are two main EXEC modes for entering commands. Purpose: This slide describes the different ways students can access the Catalyst switch or Cisco router to create a new configuration file or alter an existing one. Emphasize: The network device can be configured from several locations. After you create the initial configuration, you can configure the ports or interfaces to enable configuration over virtual terminal ports (vty). Both the router and switch support Telnet access as a virtual terminal. The router by default supports virtual terminals 0 through 4. The router can