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File Management Overview
You are responsible for file management. Table 33 shows the types of system files and their corresponding extensions.
Table 33: Types of System Files and Corresponding Extensions
Type of File | Extension | Description |
|---|---|---|
Configuration | *.cnf | Snapshot of the system’s configuration |
Core dump | *.dmp | File you can create for troubleshooting if a module fails |
History | *.hty (reboot.hty) | Details of when and why modules rebooted |
Log | *.log | A series of messages that describe events that occurred on the system |
Macro | *.mac | A macro program |
Release | *.rel | Software releases you can install in the system |
Script | *.scr | A sequence of CLI commands. When you run a script file, the system executes the commands as though they were entered at the terminal |
Secure Shell (SSH) Server public key | *.pub | Host key for the SSH server |
Statistics | *.sts | Bulk statistics created when you run the bulkstats commands |
Text | *.txt | Text file |
System files may reside in four locations:
- The system space
- The user space
- A network host
- The standby switch route processor (SRP) module
The system space contains files for system operation. For example, the current software configuration is stored in the system space.
The user space is reserved for FTP server operations and has the typical directory structure of a secure FTP server. The root or top level directory is a read-only directory that contains two subdirectories:
- /incoming—Read-write directory to and from which an FTP client can send and retrieve files.
- /outgoing—Read-only directory from which an FTP client can retrieve files.
Users can transfer files through FTP to the user space from a network host and vice versa. However, users cannot access the system space through FTP. To install a file from the user space to the system space, use the copy command. For detailed information about transferring files between locations, see Transferring Files.
To conserve nonvolatile storage (NVS) and minimize the installation time, files are not stored in both the system space and the user space. When you issue the copy command to install a file from user space to system space, the E Series router establishes a link to the file, but does not make a physical copy.
