/mcp1 Unknown - Unified CM has failed for an unknown reason 2 HeartBeatStopped - An internal heart beat has stopped after the preceding heart beat interval 3 RouterThreadDied - An internal thread has failed 4 TimerThreadDied - An internal thread has failed 5 CriticalThreadDied - An internal thread has failed Error Message %UC_CALLMANAGER-5-SDLLinkISV: %[RemoteIPAddress=String][LinkID=String][LocalNodeId=UInt] [LocalApplicationId=Enum][RemoteNodeID=UInt][RemoteApplicationId=Enum][AppID=String] [ClusterID=String][NodeID=String]: SDL link to remote application restored. Explanation This alarm indicates that the local Unified CM has gained communication with the remote Unified CM. Note that the remote Unified CM should also indicate SDLLinkISV with a different LinkID. Recommended Action Informational only; no action is required Reason Code - Enum Definitions Enum Definitions - LocalApplicationId Value Definition 100 CallManager Enum Definitions - RemoteApplicationId Value Definition 100 CallManager Error Message %UC_CALLMANAGER-1-SDLLinkOOS: %[RemoteIPAddress=String][LinkID=String] [LocalNodeId=UInt][LocalApplicationID=Enum][RemoteNodeID=UInt][RemoteApplicationID=Enum] [AppID=String][ClusterID=String][NodeID=String]: SDL link to remote application is out of service. Explanation This alarm indicates that the local Unified CM has lost communication with the remote Unified CM. This alarm usually indicates that a node has gone out of service (whether intentionally for maintenance or to install a new load for example; or unintentionally due to a service failure or connectivity failure). Recommended Action In the Cisco Unified Reporting tool, run a CM Cluster Overview report and check to see if all servers can communicate with the Publisher. Also check for any alarms that might have indicated a CallManager failure and take appropriate action for the indicated failure. If the node 5/24/26, 3:34 AM System Error Messages for Cisco Unified Communications Manager 15 - Cisco https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/15_x/ccmalarms15.html 158/343