Troubleshooting Cisco Jabber Federation: Resolve Problem with SRV Records

Resolve Problem with SRV Records

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Question

An engineer is troubleshooting Cisco Jabber Federation where the server cannot discover the external Lync domains using SRV records.

Which two steps must be taken to resolve this problem? (Choose two.)

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D. E. F. G.

BF.

The problem in this scenario is that the Cisco Jabber server is unable to discover external Lync domains using SRV records. To resolve this issue, the following steps can be taken:

  1. Set the protocol to TLS: Since the issue is related to SRV record discovery, the communication between the Cisco Jabber server and the Lync server needs to be secure. Therefore, the protocol needs to be set to Transport Layer Security (TLS).

  2. Configure the port number as 5061: The standard port number for SIP over TLS is 5061. Therefore, this port number needs to be configured in the Cisco Jabber server to allow communication with the Lync server over TLS.

  3. Set the Next Hop value as the IP address of the Lync Domain servers: The Next Hop value in this scenario refers to the IP address of the Lync domain servers that the Cisco Jabber server needs to connect to. This IP address needs to be configured in the Cisco Jabber server so that it knows where to send the SIP requests.

  4. Configure the destination pattern as "lyncdomainname.com": The destination pattern refers to the format of the SIP URI that the Cisco Jabber server needs to use to send requests to the Lync server. In this scenario, the destination pattern needs to be set as "lyncdomainname.com" to ensure that the Cisco Jabber server is sending requests to the correct domain.

Therefore, the correct steps to resolve the problem are B and G. Set the protocol to TLS and Set the Next Hop value as the IP address of the Lync Domain servers.