CANOGA PERKINS 2461 E1 Modem - Manual (Page 65)

EdgeAccess Universal Chassis System
2461 Modem User Manual 8-1
8 Chapter 8
Upgrading Modem Software
The 2461 modem has two flash memory banks for storing firmware:
• The Active Flash Memory Region. The active region is operative while the modem is
running.
• The Inactive Flash Memory Region. Software upgrades are downloaded here, and swapped
with the firmware in the active region.
Since downloading a software upgrade can take some time, software is downloaded to the
inactive region. Service is not disrupted while downloading the new version. Swapping between
the two memory regions requires the modem to be rebooted. The purpose here is to allow the
replacement of an old version, and installation of a new one, with minimal service disruption.
Note: The steps in this process will vary, depending on the availability of a Domain
Management Module (DMM) to facilitate automatic uploading of software revisions
to all modems directly from the software source.
The steps are as follows:
1. Determining the software revision currently being used by the modem.
2. Determining if a newer version is available.
3. Obtaining the new software via floppy disk, or downloading it from Canoga Perkins Web
site.
If you have a DMM, you do not need to transfer the file from the Canoga Perkins website to your
hard drive, and then, to the modem. With the DMM, you can TFTP the file into the DMM library
and, from there, to the modems. (Refer now to the DMM manual for upgrading instructions.) If
no DMM is available, use the following steps to transfer the firmware file from its source (the
Canoga Perkins website, or floppy disk), to the root directory of your server, then upload to the
modem.
1. Place the new Firmware version in the root directory of your server.
2. Using Canoga Perkins dwnfirm.exe program, download the newest software revision to the
inactive flash memory regions of each modem.
3. Swap the new software revision to the active flash memory region.