Source note · Cisco Expressway clustering
From X8.8, cluster peers use TCP 4371 for cluster recovery and TLS on TCP 4372 for cluster communication and database synchronization.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- clustering ports
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X8.8 onwards; guide edition X14.3/X15.0
- Checked
- 2026-09-25
Sources
- Cisco Expressway IP Port Usage Configuration Guide (Includes X14.3 and X15.0 releases) - Clustering Connections — Cisco Systems · tier 2 current vendor documentation · Clustering Connections chapter, Table 2 (cluster database synchronization)
Cite this note
APA
WarmTransfer. (2026, September 25). Cisco Expressway clustering: source note expressway-clustering-ports-4371-4372. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-clustering-ports-4371-4372
BibTeX
@misc{warmtransfer-claim-expressway-clustering-ports-4371-4372,
title = {Cisco Expressway clustering: source note expressway-clustering-ports-4371-4372},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-clustering-ports-4371-4372},
note = {Source note expressway-clustering-ports-4371-4372, checked 2026-09-25}
}