Cisco Expressway Cluster Creation and Maintenance Deployment Guide (X15.4) - Use Fully Qualified Domain Names to Form a Cluster

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X15-4/cluster_creation_maint/exwy_b_cisco-expressway-cluster-creation-and-maintenance-deployment-guide-x154/exwy_m_optional-use-fully-qualified-domain.html

Published

2026-02-09

Updated

unknown

Accessed

2026-09-30

HTTP status

200

License

Cisco documentation; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• After TLS verification mode is set to Enforce on the primary peer, restart the primary first and then each other peer in turn. in context
• Before setting cluster TLS verification mode to Enforce, confirm that each certificate's SANs contain the FQDNs in the Peer address fields and that System > Clustering shows green status for each peer. in context
• For cluster TLS in Enforce mode, each peer must trust the CA that issued the other peers' certificates. in context
• For Expressway-E traversal zones facing a clustered Expressway-C, the Expressway-C cluster FQDN is entered as the TLS verify subject name. in context

Cite this source record

APA

WarmTransfer. (2026, February 9). Cisco Expressway Cluster Creation and Maintenance Deployment Guide (X15.4) - Use Fully Qualified Domain Names to Form a Cluster. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-exwy-x154-cluster-fqdn

BibTeX

@misc{warmtransfer-cisco-exwy-x154-cluster-fqdn,
  title  = {Cisco Expressway Cluster Creation and Maintenance Deployment Guide (X15.4) - Use Fully Qualified Domain Names to Form a Cluster},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-exwy-x154-cluster-fqdn},
  note   = {Cisco Systems, accessed 2026-09-30}
}