10-12
Cisco SCE 2000 and SCE 1000 Software Configuration Guide
OL-7827-12
Chapter 10 Redundancy and Fail-Over
System Upgrades
System Upgrades
• Firmware Upgrade (package installation), page 10-12
• Application Upgrade, page 10-13
• Simultaneous Upgrade of Firmware and Application, page 10-13
In a redundant solution, it is important that firmware and/or application upgrades be performed in such
a way that line and service are preserved.
Refer to the following sections for instructions on how to perform these procedures on two cascaded SCE
platforms:
• Upgrade the firmware only
• Upgrade the application only
• Upgrade both the firmware and the application at the same time
Note When upgrading only one component (either firmware only or application only), always verify that the
upgraded component is compatible with the component that was not upgraded.
Firmware Upgrade (package installation)
Step 1 Install package on both SCE platforms (open the package and copy configuration).
Step 2 Reload the standby SCE platform.
Step 3 Wait until the standby finishes synchronizing and is ready to work.
Step 4 Make sure that the connection mode configurations are correct.
Step 5 Reload the active SCE platform.
Step 6 After the former active SCE platform reboots and is ready to work manually, it may be left as standby
or we can manually switch the SCE platforms to their original state.
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