Source note · Unified CM intercluster trunks
A TLS-authenticated ILS network that exchanged only the Tomcat server certificate may lose peering after an upgrade to 15SU5 or later if a separate Tomcat client certificate is in use.
inferred · Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- Intercluster Lookup Service
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15SU5 and later
- Status
- inferred
- Checked
- 2026-09-25
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure Intercluster Lookup Service — Cisco Systems · tier 2 current vendor documentation · Configure Intercluster Lookup Service > Configure ILS > Use TLS Certificates (note)
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM intercluster trunks: source note cucm-intercluster-trunks-ils-15su5-upgrade-risk. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-ils-15su5-upgrade-risk
BibTeX
@misc{warmtransfer-claim-cucm-intercluster-trunks-ils-15su5-upgrade-risk,
title = {Unified CM intercluster trunks: source note cucm-intercluster-trunks-ils-15su5-upgrade-risk},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-intercluster-trunks-ils-15su5-upgrade-risk},
note = {Source note cucm-intercluster-trunks-ils-15su5-upgrade-risk, checked 2026-09-25}
}