300-810 · Question #16
Refer to the exhibit. Troubleshooting an internal Jabber login issue and you see this logging snippet from the Jabber PRT file. You already checked that the Jabber client has a connection to the…
The correct answer is B. SRV record _cisco-uds._tcp.example.com. Cisco Jabber uses DNS SRV records for automatic service discovery. The SRV record _cisco-uds._tcp.<domain> (B) is used to discover the Cisco Unified Communications Manager (CUCM) UDS (User Data Services) endpoint, which Jabber queries during login to retrieve user configuration…
Question
Refer to the exhibit. Troubleshooting an internal Jabber login issue and you see this logging snippet from the Jabber PRT file. You already checked that the Jabber client has a connection to the correct DNS server. Which DNS record is missing for service discovery of Cisco Unified Communications Manager for the login process to proceed further?
Exhibit
Options
- AA record for the Cisco Unified Communications Manager
- BSRV record _cisco-uds._tcp.example.com
- CA record _cuplogin._tcp.example.com
- DSRV record _cuplogin._tcp.example.com
How the community answered
(34 responses)- A3% (1)
- B88% (30)
- C6% (2)
- D3% (1)
Explanation
Cisco Jabber uses DNS SRV records for automatic service discovery. The SRV record _cisco-uds._tcp.<domain> (B) is used to discover the Cisco Unified Communications Manager (CUCM) UDS (User Data Services) endpoint, which Jabber queries during login to retrieve user configuration and service information. Without this SRV record, Jabber cannot automatically locate CUCM and the login process stalls. An A record for CUCM (A) alone is insufficient - Jabber's discovery mechanism relies on SRV records. The _cuplogin._tcp records (C, D) relate to Cisco Unified Presence login discovery, which is a different service used for IM and Presence, not CUCM login.
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