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Cisco Systems 3200 User Manual

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7-2
Cisco 3200 Series Router Hardware Reference
OL-5816-10
Chapter 7      Managing Firmware and Configurations
  Working with the Flash File System
*   16128000    11118592     flash     rw   flash:
    16128000    11118592   unknown     rw   zflash:
       32768       26363     nvram     rw   nvram:
           -           -   network     rw   tftp:
           -           -    opaque     rw   null:
           -           -    opaque     rw   system:
           -           -    opaque     ro   xmodem:
           -           -    opaque     ro   ymodem:
           -           -   network     rw   rcp:
           -           -   network     rw   ftp:
 lists field descriptions for the show file systems command.
Setting the Default File System
You can specify the file system or directory that the system uses as the default file system by using the 
cd filesystem: privileged EXEC command. You can set the default file system to omit the filesystem: 
argument from related commands. For example, for all privileged EXEC commands that have the 
optional filesystem: argument, the system uses the file system specified by the cd command.
Table 7-1
show file systems Field Descriptions 
Field
Value
Size(b)
Amount of memory in the file system in bytes.
Free(b)
Amount of free memory in the file system in bytes.
Type
Type of file system.
flash—The file system is for a flash memory device.
network—The file system is for a network device.
nvram—The file system is for a nonvolatile RAM (NVRAM) device.
opaque—The file system is a locally generated pseudo file system (for example, the system) or a download 
interface, such as brimux.
unknown—The file system is an unknown type.
Flags
Permission for file system. 
ro—read-only.
rw—read/write.
wo—write-only.
Prefixes
Alias for file system.
flash:—flash file system.
ftp:—File Transfer Protocol (FTP) network server. Used to transfer files to or from the network device.
nvram:—Non-volatile RAM memory (NVRAM).
null:—Null destination for copies. You can copy a remote file to null to determine its size.
rcp:—Remote Copy Protocol (RCP) network server.
system:—Contains the system memory, including the running configuration.
tftp:—Trivial File Transfer Protocol (TFTP) network server.
zflash:—Read-only file decompression file system, which mirrors the contents of the flash file system.