Netgear XCM8806 Chassis User Manual - Page 813

NETGEAR 8800 User Manual  Hitless upgrade is not supported between major releases, for instance XCM8800 11.x and 12.x. Do not attempt to perform a hitless upgrade. For information about installing an image without using hitless upgrade, see Installing a Core Image on page 804. Summary of Tasks To perform a hitless upgrade to install and upgrade the XCM8800 software on your system: 1. View the current switch information. • Determine your selected and booted image partitions. • Verify which MSM is the primary and which is the backup. • Confirm that the MSMs are synchronized. 2. Select the alternate partition to download the image to (and the partition to boot from after installing the image). Download and install the new XCM8800 core image on the backup MSM. Reboot this MSM. 3. Verify that the backup MSM comes up correctly and that the MSMs are synchronized. 4. Initiate failover from the primary MSM to the backup MSM. The backup MSM now becomes the new primary MSM. 5. Verify that the MSMs come up correctly and that they are synchronized. 6. Download and install the new XCM8800 core image on the original primary MSM (new backup MSM). Reboot this MSM. 7. Verify that the new backup MSM comes up correctly and that the MSMs are synchronized. 8. Initiate failover from the new primary MSM to the new backup MSM. This optional step restores the switch to the original primary and backup MSM. 9. Confirm that the failover is successful. This optional step confirms which MSM is the primary or the backup. Note: You must install the XCM8800 core image on the alternate partition. Should you attempt to install the image to the active partition, the following error message is displayed. "Error: Image can only be installed to the non-active partition." Detailed Steps To perform a hitless upgrade to install and upgrade the XCM8800 software on your system: 1. View current switch information using the following command: show switch Appendix B. Software Upgrade and Boot Options | 813