Upgrading Process

During the upgrade process, the upgrade program does the following:

• Uninstalls the old version
• Installs the new version
• Preserves and migrates the configuration to the new version
  

  Note

  V2110 (MS Hyper-V platform) does not support flash functionality.
  

  Note

  When you upgrade the Wireless Controller Software, the previous SSL Configuration file is replaced by a new one. Consequently, the manual edits that were made in the previous SSL Configuration file are lost. If you have done manual edits to the SSL configuration file to install certificates for Captive Portal on the virtual interfaces, it is suggested to use EWC Captive Portal Certificate Configuration instead.

Upgrade Path Matrix to V9

Use the following matrix to determine the upgrade path to required version V9 that is appropriate for your wireless controller and the software running on it.

Upgrade Matrix

Platform	From	To
C5110	V6R0	V6R1 FR5 (or higher FR)
	V6R1 FR5 (or higher FR)	V7.41
	V7.0, V7.11, V7.21, V7.31	V7.41
	V7.41, V8.01, V8.11, V8.21, V8.31	V8.32
	V8.32, V9.01, V9.12, V9.15	V9.21
C4110	V6R1	V6R1 FR5 (or higher FR)
	V6R1 FR5 (or higher FR)	V7.41
	V7.0, V7.11, V7.21, V7.31	V7.41
	V7.41, V8.01, V8.11, V8.21, V8.31	V8.32
	V8.32, V9.01, V9.12, V9.15	V9.21
C25	V7.41, V8.01, V8.11, V8.21, V8.31	V8.32
	V8.32, V9.01, V9.12, V9.15	V9.21
V2110	V8.01, V8.11, V8.21, V8.31, V8.32, V9.01, V9.12, V9.15	V9.21
C5210	V8.21, V8.31, V8.32, V9.01, V9.12, V9.15	V9.21

For information about migrating from one platform to another, see Migrating the Platform Configuration.

For information about upgrading controllers operating in “availability” mode, see Upgrading Two Controllers in Availability Mode.