10
http:\\ciscocertifications.info
2)
hardware platform
3)
port identifiers
4)
capabilities list
5)
version information
6)
up to one address for each protocol supported.
To delete the CDP table of information about neighbors type:
clear cdp table*Keypoints:Know the 6 pieces of information that are provided by CDP.CDP can be disabled on an interface by using the "no cdp enable" command.Know that the Interface Output portion of the show configuration command will list configured IPaddresses and subnet masks.Managing Configuration Files
Router configuration information can be generated by several means. From privileged EXEC mode you
can enter the configure command to configure the running configuration from either a Terminal (Con-
sole), Memory (NVRAM), or Network (TFTP). These 4 commands are holdovers from the 10.0 IOS
days.
config terminal
Allows you to configure manually from the console terminal.
config memory
Loads the configuration file from NVRAM, same as copy startup run-
ning.
config network
Loads the configuration from a TFTP server to RAM, same as copy
TFTP startup
config overwrite
Loads a configuration file directly to NVRAM without affecting the
running configuration.
You can also use the copy command:
copy running-config startup-config
Copies the running config (RAM) to the Startup config
(NVRAM). Used after real time changes via config term
have been made that require to be saved.
copy startup-config running-config
Copies startup configuration from NVRAM into RAM
where it becomes the running configuration.
copy running-config tftp
Makes a backup of the running config file to a TFTP
server.
copy tftp running-config
Loads configuration information from a TFTP server.
copy tftp startup-config
Copies the config file from the TFTP server into
NVRAM.
copy tftp flash
Loads a new version of the CISCO IOS into the router.
Copy flash tftp
Makes a backup copy of the software image onto a net-
work server.
*Keypoints:Know what the above 7 copy commands do.Know that the 4 holdover commands above are from the pre-10.3 IOS days and are no longerdocumented.Know that the routing tables, ARP cache and packet buffers are stored in RAM.