Cisco Expressway Administrator Guide (X15.4) - Maintenance

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/admin_guide/X15-4/exwy_b_cisco-expressway-administrator-guide-x154/exwy_m_maintenance.html

Published

2026-02-09

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco copyrighted documentation; no-redistribution; short excerpts and locators only

Source notes citing this source

• In maintenance mode, existing calls on the peer continue until they end, while new calls and registrations go to other peers. in context
• In a cluster, a peer in maintenance mode has its workload handled by the other peers, and Cisco advises enabling maintenance mode on only one peer at a time in large deployments. in context
• While a cluster is mid-upgrade, configuration changes are not replicated to subordinate peers running a different version from the primary. in context
• A backup cannot be restored to an Expressway while it is part of a cluster; it must first be removed from the cluster. in context
• Cisco recommends upgrading the Expressway-E cluster before the Expressway-C cluster, starting with the primary peer in each. in context
• When upgrading an Expressway cluster, upgrade the primary peer first and then the subordinate peers one at a time. in context

Cite this source record

APA

WarmTransfer. (2026, February 9). Cisco Expressway Administrator Guide (X15.4) - Maintenance. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-exwy-admin-x154-maintenance

BibTeX

@misc{warmtransfer-cisco-exwy-admin-x154-maintenance,
  title  = {Cisco Expressway Administrator Guide (X15.4) - Maintenance},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-exwy-admin-x154-maintenance},
  note   = {Cisco Systems, accessed 2026-09-25}
}