Source note · Troubleshooting Unified CM database replication
The Release 15 port-usage table lists 8500 TCP and UDP between Unified CM nodes for intracluster replication of system data by the IPSec Cluster Manager.
Checked 2026-09-30
Intracluster replication of system data by IPSec Cluster Manager
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- network ports
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs as of 2026-09-30
- Checked
- 2026-09-30
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Cisco Unified Communications Manager TCP and UDP Port Usage — Cisco Systems · tier 2 current vendor documentation · Intracluster Ports Between Cisco Unified Communications Manager Servers, row 8500 / TCP and UDP
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Unified CM database replication: source note cucm-database-replication-troubleshooting-port-8500. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-database-replication-troubleshooting-port-8500
BibTeX
@misc{warmtransfer-claim-cucm-database-replication-troubleshooting-port-8500,
title = {Troubleshooting Unified CM database replication: source note cucm-database-replication-troubleshooting-port-8500},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-database-replication-troubleshooting-port-8500},
note = {Source note cucm-database-replication-troubleshooting-port-8500, checked 2026-09-30}
}