Source note · Planning a Unified CM upgrade
For large clusters, raise the database replication timeout on the publisher with utils dbreplication setrepltimeout before upgrading, then restore the 300-second default afterward.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- database replication
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs as of 2026-09-25
- Checked
- 2026-09-25
Sources
- Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs - Pre-Upgrade Tasks (Manual Process) — Cisco Systems · tier 2 current vendor documentation · Pre-Upgrade Tasks > Increase the Database Replication Timeout
Cite this note
APA
WarmTransfer. (2026, September 25). Planning a Unified CM upgrade: source note cucm-upgrade-planning-repl-timeout-large-clusters. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-repl-timeout-large-clusters
BibTeX
@misc{warmtransfer-claim-cucm-upgrade-planning-repl-timeout-large-clusters,
title = {Planning a Unified CM upgrade: source note cucm-upgrade-planning-repl-timeout-large-clusters},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-upgrade-planning-repl-timeout-large-clusters},
note = {Source note cucm-upgrade-planning-repl-timeout-large-clusters, checked 2026-09-25}
}