An ILS spoke cluster connects only to its local hub and never directly to other hubs or spokes; a hub can have many spokes but a spoke can have only one hub.
Checked 2026-10-01
A hub cluster can have many spokes but a spoke cluster can have only one hub cluster.
- Vendor
- Cisco
- Product
- Cisco Unified Communications Manager
- Subsystem
- Intercluster Lookup Service
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-10-01
Sources
- System Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Configure Intercluster Lookup Service — Cisco Systems · tier 2 current vendor documentation · ILS Overview > ILS Network Components; ILS Interactions and Restrictions > Clusters
Cite this note
APA
WarmTransfer. (2026, October 1). Setting up ILS and Global Dial Plan Replication in Unified CM: source note cucm-ils-gdpr-setup-spoke-one-hub. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-ils-gdpr-setup-spoke-one-hub
BibTeX
@misc{warmtransfer-claim-cucm-ils-gdpr-setup-spoke-one-hub,
title = {Setting up ILS and Global Dial Plan Replication in Unified CM: source note cucm-ils-gdpr-setup-spoke-one-hub},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-ils-gdpr-setup-spoke-one-hub},
note = {Source note cucm-ils-gdpr-setup-spoke-one-hub, checked 2026-10-01}
}