Cisco Unified Real-Time Monitoring Tool Administration Guide, Release 15 and SUs - Alerts

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/service/15/rtmt/cucm_b_cisco-unified-rtmt-administration-15/cucm_b_cisco-unified-rtmt-administration-1251su2_chapter_0111.html

Published

2026-09-09

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

• Alert Central shows preconfigured and custom alerts under five tabs: System, Voice/Video, IM and Presence Service, Cisco Unity Connection and Custom. in context
• A cleared alert in Alert Central changes from red to black. in context
• CodeYellow indicates that Unified CM has started call throttling because of unacceptably high delay in handling calls. in context
• CoreDumpFileFound is generated when the RTMT backend service detects a new core dump file. in context
• The RTMT backend checks service status every 30 seconds by default, so a service that goes down and recovers within that period may not raise CriticalServiceDown. in context
• CriticalServiceDown is generated when any monitored service is down. in context
• The Default alert action sends email to an administrator; alert actions carry the recipient list used when an alert fires. in context
• The alert Duration setting either triggers immediately or only when the value stays beyond the threshold continuously for a configured number of seconds. in context
• The SMTP server for RTMT alert email is configured at System > Tools > Alert > Config Email Server, with mail server and port fields. in context
• The email server dialog has an Enable TLS mode check box for encrypted SMTP and optional SMTP authentication credentials. in context
• Because CriticalServiceDown relies on a 30-second status check, short service restarts can be missed by Alert Central; forwarding Serviceability alarms to remote syslog is the likely complement for catching them. inferred in context
• The alert Frequency setting either triggers on every poll or sends up to a set number of alerts within a set number of minutes. in context
• Preconfigured RTMT alerts cannot be deleted, only enabled or disabled; user-defined alerts can be added and deleted. in context
• An alert Schedule is either 24 hours daily or a daily Start/Stop time window. in context
• Alerts can be suspended cluster-wide or per node at System > Tools > Alert > Suspend cluster/node Alerts, for example during maintenance. in context
• An RTMT alert threshold is configured as an Over (maximum) or Under (minimum) value that triggers notification. in context
• Enable Trace Download is offered only for the CriticalServiceDown, CodeYellow and CoreDumpFileFound alerts. in context
• Cisco warns that alert-triggered trace download may affect services on the node and that a high number of downloads degrades service quality. in context
• For counter-based alerts the value can be calculated as Absolute, Delta or Delta Percentage. in context

Cite this source record

APA

WarmTransfer. (2026, September 9). Cisco Unified Real-Time Monitoring Tool Administration Guide, Release 15 and SUs - Alerts. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-rtmt-15-alerts

BibTeX

@misc{warmtransfer-cisco-rtmt-15-alerts,
  title  = {Cisco Unified Real-Time Monitoring Tool Administration Guide, Release 15 and SUs - Alerts},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-rtmt-15-alerts},
  note   = {Cisco Systems, accessed 2026-09-25}
}