- Preface
- Cisco Remote-PHY Solution Overview
- Cisco Remote-PHY Solution Deployment
- Installing the Cisco Remote-PHY Solution
- Configuring the Cisco Remote-PHY Solution
- Upgrading the Cisco Remote-PHY Solution
- Maintaining and Monitoring the Cisco Remote-PHY Solution
- Troubleshooting the Cisco Remote-PHY Solution
Upgrading the
Cisco Remote-PHY Solution
Upgrading the Cisco CMC Image through the Cisco CMTS
The Cisco CMC consists of the following three images:
Golden Image
The image on the Cisco CMC that is downloaded as part of the factory settings is called the golden image. This image is read-only and cannot be deleted or replaced using the CLI. This image supports only the Cisco CMC image upgrade and does not support the other features.
Bank 1 and Bank 2 Images
The non-golden images on the Cisco CMC that support all the features are called the bank 1 and bank 2 images. These images can be copied to or deleted from the Cisco CMC. When the Cisco CMC image is upgraded, the bank 1 and bank 2 images are upgraded alternately. That is, if the last upgraded image is the bank 1 image, then the bank 2 image is upgraded with the current upgrade, and vice versa. When the image (non-golden) upgrade fails, the Cisco CMC tries to boot with the image from the other bank. If the images from both the banks fail, the Cisco CMC boots with the golden image.
Before upgrading the Cisco CMC image through the Cisco CMTS, you must specify the TFTP or FTP server address and full file path in the DHCP server.
If you are using a Cisco Network Registrar as the DHCP server, you must specify the values for the following fields:
For more information on the Cisco Network Registrar, see Cisco Network Registrar.
The figure below shows an example of how to specify the values in the Cisco Network Registrar:
1 | Specify the new image file name and its full path |
2 | Specify the TFTP or FTP server address where the new image is located |
While upgrading the software images on Cisco CMTS and Cisco CMC, upgrade the Cisco CMC first, and then upgrade the Cisco CMTS.
If the Cisco CMTS is upgraded before the Cisco CMC, the Cisco CMC may not come online.
What to Do Next
If you are unable to upgrade the Cisco CMC image through Cisco CMTS, upgrade it through the Cisco CMC console. For more information, see Upgrading the Cisco CMC Image through the Cisco CMC Console.
Upgrading the Cisco CMC Image through the Cisco CMC Console
Perform this procedure only if you are unable to upgrade the Cisco CMC image through the Cisco CMTS.
Restriction
While upgrading the software images on Cisco CMTS and Cisco CMC, upgrade the Cisco CMC first, and then upgrade the Cisco CMTS.
If the Cisco CMTS is upgraded before the Cisco CMC, the Cisco CMC may not come online.
Step 1 | Open the Cisco CMC lid. See Opening the Cisco CMC. | ||||
Step 2 | Connect the console cable to the Cisco CMC console port and connect the other end of the console cable to a computer. See Using the Console Port on the Cisco CMC. | ||||
Step 3 | Log in to the Cisco CMC console using telnet with username
admin and password admin.
| ||||
Step 4 | Enable the privilege mode on the
Cisco CMC using the
enable command.
Enter your password, if prompted.
Example: CMC> enable | ||||
Step 5 | Upgrade the
Cisco CMC image using the
upgrade system
url command.
url—Firmware path, where the image is available.
Example: CMC# upgrade system tftp://192.168.1.1/image-1.1.bin | ||||
Step 6 | After the image upgrade is completed, disconnect the console cable from the Cisco CMC console port. | ||||
Step 7 | Close the Cisco CMC lid. See Closing the Cisco CMC. |