CCNA Cisco Certified Network Associate Study Guide - FTP Server

Using Cisco Discovery Protocol 345
The configuration file is an ASCII text file. This means that before you
copy the configuration stored on a TFTP host back to a router, you can make
changes to the file with any text editor.
Erasing the Configuration
To delete the startup-config file on a Cisco router, use the command
erase startup-config, as follows:
Router#erase startup-config
Erasing the nvram filesystem will remove all files!
Continue? [confirm](press enter)
[OK]
Erase of nvram: complete
Router#
The preceding command deletes the contents of NVRAM on the router. The
next time the router boots, it will run in setup mode.
Using Cisco Discovery Protocol
Cisco Discovery Protocol (CDP) is a proprietary protocol designed by
Cisco to help administrators collect information about both locally attached
and remote devices. By using CDP, you can gather hardware and protocol
information about neighbor devices. This information is useful for troubleshooting
and documenting the network.
Getting CDP Timers and Holdtime Information
The show cdp command (sh cdp for short) shows information about two
CDP global parameters that can be configured on Cisco devices:
� CDP timer is how often CDP packets are transmitted to all active
interfaces.
� CDP holdtime is the amount of time that the device will hold packets
received from neighbor devices.