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B-4
Installation and Upgrade Guide for Cisco Unified Presence Release 8.0 and 8.5
Appendix B Upgrading Cisco Unified Presence
How to Perform Intercluster Upgrades
Retrieving the Remote Patch
Procedure
Step 1
Enter the location and sign in information for the remote file server.
Step 2
Select the upgrade patch that you want to install, after the system connects to the remote server and
retrieves a list of available upgrade patches. The system downloads, unpacks, and installs the patch and
then restarts the system.
Related Topics
Configuring the Basic Installation, page 3-4
How to Perform Intercluster Upgrades
This section is applicable to the following Cisco Unified Presence intercluster upgrades:
•
Cisco Unified Presence Release 7.x to Release 8.0(x)
•
Cisco Unified Presence Release 7.x to Release 8.5(x)
•
Prerequisites for an Intercluster Upgrade, page B-4
•
Roster Migration for Intercluster Upgrade, page B-5
•
Contact List Size for Intercluster Upgrade, page B-5
•
SIP Remote Contact Limit, page B-5
•
Performing an Intercluster Upgrade, page B-6
Prerequisites for an Intercluster Upgrade
Before you perform the software upgrade to Cisco Unified Presence Release 8.x, we highly recommend
that you turn off (deactivate) the Cisco UP Presence Engine service in the local Cisco Unified Presence
cluster.
If you intend to upgrade all clusters to Release 8.x, you should turn off (deactivate) the Cisco UP
Presence Engine on
all
clusters until you complete the intercluster upgrade in your intercluster
deployment. Once you complete the upgrades in your deployment, verify the status of the intercluster
peer connections are ok, and there are no pending system notifications. You can then turn on (activate)
the Cisco UP Presence Engine on all nodes in all clusters. You may experience high CPU (possibly for
several hours) while the Cisco UP Presence Engine attempts to reestablish any presence subscriptions
with remote contacts.
If you intend to leave an intercluster peer on Release 7.0(x), verify the status of the intercluster peer
connections are ok. Enable the Cisco UP XCP SIP Federation Connection Manager service before you
turn on (activate) the Cisco UP Presence Engine service, as described in the intercluster upgrade
procedure
Performing an Intercluster Upgrade, page B-6
. You may experience high CPU (possibly for
several hours) while the Cisco UP Presence Engine attempts to reestablish any presence subscriptions
with remote contacts.
For intercluster presence to work between a Cisco Unified Presence Release 7.0(x) cluster and a
Cisco Unified Presence Release 8.0(x), the proxy service parameter RecordRoute should be enabled.