31 Days Before Your CCNA Exam

182 31 Days Before Your CCNA ExamCommands for Managing Configuration FilesKnowing the URL structure is important because you use them when copying configuration filesfrom one location to another. The Cisco IOS Software copy command is used to move configurationfiles from one component or device to another, such as RAM, NVRAM, or a TFTP server.Figure 15-2 shows the command syntax.Figure 15-2copy Command Syntaxcommand source-url: destination-url:One of system:, nvram:, tftp:One of system:, nvram:, tftp:Command: copyThe source URL is where you are copying from. The destination URL is where you are copyingto. For example, you are already familiar with the abbreviated command copy run start. However,in its most verbose form, this command specifies the file locations:Router#copy system:running-config nvram:startup-configThe command states, “Copy the running configuration from the system’s RAM to NVRAM andsave it with the filename startup-config.Other examples include copy from RAM to TFTP:Router#copy system:running-config tftp:Or simply,Router#copy run tftpCopying from TFTP to RAM:Router#copy tftp: system:running-configOr simply,Router#copy tftp runCopying from TFTP to the startup configuration file:Router#copy tftp: nvram:startup-configOr simply,Router#copy tftp nvramThe copy commands using TFTP require more configurations (covered in the next section) afteryou enter them to carry out the instruction.Cisco IOS File Naming ConventionsBecause of the sheer number of platforms, feature sets, and possible versions of IOS, a file namingconvention is used to provide some basic information about the IOS image. Figure 15-3 shows asample IOS image filename and what each part means.