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Route Switch Processor (RSP8) Installation and Configuration Guide
OL-4920-02
Maintenance Information
Configuration information resides in two places when the router is operating: the startup default
(permanent) configuration in NVRAM, and the running (temporary) memory in RAM. The default
startup configuration always remains available; NVRAM retains the information even when the power
isshut down. The current information is lost if the system power is shut down. The current configuration
containsall nondefault configuration information that you added with the configure command, the setup
facility, or editing of the configuration file.
The configurecommand adds the current configuration to the default configuration in NVRAM so that
itis also saved when power is shut down. Whenever you make changes to the system configuration, use
the copy running-config startup-configcommand to ensure that the new configuration is saved.
Ifyou replace the RSP8 in a system with only one RSP8, you also replace the entire configuration, which
resides in NVRAM on the RSP8. If you copy the configurationfile to a remote server before removing
theRSP8, you can retrieve it later and write it into NVRAM on the new RSP8. Youcan also use the copy
running-configslot0:config-file command to save the configurationfile to Flash memory, and then use
the copy slot0:config-file nvram:startup-config command to restore it.
If you do not copy the configuration file, you must use theconfigure command or the setup command
facility to re-enter the configuration information after you install the new RSP8. For complete
descriptions of these two commands, and instructions for using them, refer to the Cisco IOS software
documentation.
If you are temporarily removing an RSP8, it is not necessary to copy the configuration file to a remote
server; the lithium batteries retain the configuration file in memory until you replace the RSP8 in the
system. This procedure requires privileged-level access to the EXEC command interpreter, which
usually requires a password. See the “Using the EXEC Command Interpreter” section on page 24 and
contact your system administrator to obtain access, if necessary.
Forconfiguration information and support, refer to the Cisco IOS software configuration documentation
set that corresponds to the software release installed on your Cisco hardware.
Using the ping Command to Ensure Connectivity
Before you attempt to copy or retrieve a file from a remote host, ensure that the connection is good
between the router and the remote server by using the packet internet groper (ping) program. The ping
program sends a series of echo request packets to the remote device and waits for a reply. If the
connection is good, the remote device echoes them back to the local device.
The console terminal displays the results of each message sent: an exclamation point (!) indicates that
the local devicereceived an echo, and a period (.) indicates that the server timed out while awaiting the
reply. If the connection between the two devices is good, the system displays a series of exclamation
points (! ! !) or [ok]. If the connection fails, thesystem displays a series of periods (. . .) or [timed out]
or [failed].
To verify the connection between the router and a remote host, use theping command followed by the
name or Internet Protocol (IP) address of the remote server; then press Return. Although the ping
commandsupports configurable options, the defaults, including IP as the protocol, are enabled when you
entera host name or address on the same line as the ping command. For a description of the configurable
options, refer to the appropriate software documentation.
The following example shows a successful ping operation:
Router# ping 10.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/12/12 ms
The following example shows the results of a failed ping operation: