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Software Upgrade Overview
This section describes the general steps required to upgrade your system software on a
Cisco 7000 series router. The sections that follow describe these steps in detail.
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
Step 10
Step 11
Establishing a Telnet Session
You must be able to issue commands to the router on which you are upgrading the software. For
example, this publication tells you to issue a command to download the image from the TFTP server
to the router.
If you have a console port connection to the router, you need not invoke a Telnet session. If you do
not have a console port connection to the router, you must establish a Telnet session with the router
so that you can issue the router commands.
You can set up a Telnet session from a Sun workstation or from a PC.
•
If you are using a Sun workstation as a TFTP server, you can also establish a Telnet session from
the workstation to the router, in addition to the TFTP session.
•
If you are running TCP/IP software on a PC, check to see if the software is character-based or
Windows-based.
— If character-based, you need a second PC from which you can establish a Telnet session.
— If Windows-based, you can open one window for the TFTP session and one window for the
Install the appropriate system software onto your TFTP server in the TFTP directory.
Verify that the router you are upgrading can connect to the TFTP server. Ping from the
router to the TFTP server.
If the TFTP server is not already active, start the TFTP server.
If you do not have a console port connection to the router you are upgrading, establish a
Telnet session with the router.
Back up the existing working system software and microcode images currently in Flash
memory by copying the files to the TFTP server.
Back up your current configuration file to your TFTP server.
Copy the system software image from the TFTP server into Flash memory using the
copy tftp flash command.
Ensure that the checksum listed on the bottom line of the output for the copy tftp flash
command matches the checksum listed in the README file on the upgrade disk, as in the
following:
(text deleted)
Verifying via checksum...
Flash verification successful. Length = 1906676, checksum = 0x12AD
If the checksum in the screen output does not match the checksum in the README file,
invoke the copy tftp flash command again before booting from Flash memory.
Make sure your system is configured to boot from the new image in Flash memory.
Boot the router from Flash. This process reads the image from Flash memory and writes
the image into system RAM.
Check all network connections to make sure the router with the upgraded system software
is up and functioning properly.
Telnet session.
Silicon Switch Processor (SSP) Installation and Configuration
Software Upgrade Overview
9
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