/mcpprotocol version; refer to the information in this alarmfor the SAF protocol version number. If the versions do not match, check the Cisco Unified Communications Manager Software Compatibility Matrix (available on Cisco.com) to determine whether the SAF protocol version number that is in use on this Unified CM is compatible with the SAF Forwarder protocol version. If it is not, upgrade the lower-versioned component so that both Unified CM and the SAF Forwarder use the same, compatible version. 479 SAF_UNKNOWN_AS - Unified CM attempted to register to the SAF Forwarder but the registration message contained a Client Label that was not familiar to the Autonomous System (AS) on the SAF Forwarder router. Recommended action is to issue the appropriate CLI commands on the SAF Forwarder to associate the Client Label with the autonomous system on the router (refer to the Configuration Guide for the router) and configure the same Client Label in the Client Label field on the SAF Forwarder Configuration window in Cisco Unified CM Administration and click Save. When the Client Label is saved in Cisco Unified CM Administration, Unified CM automatically sends a new registration request to the SAF Forwarder with the updated Client Label information. 500 INFO LEVEL SAF_RESPONDER_ERROR - Unified CM sent a message (such as register/unregister/publish/unpublish/subscribe) to the SAF Forwarder but the SAF Forwarder responded that it is unable to process the message at this time. This might be due to heavy message queuing, internal resource issues, and so on. Unified CM will wait several seconds and then retry the request. This alarm is for informational purposes only; no action is required. 1000 SAF_INVALID_CONNECTION_DETAILS") 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 282/343