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300-810 · Question #276

Refer to the exhibit. A collaboration engineer is troubleshooting an issue with high availability on the Cisco IM and Presence Service. Users have not reported any degradation in service. Which…

The correct answer is D. Start all critical services on both nodes and select "rebalance users" in the "Presence User. Resolving an IM and Presence high availability issue where one node is not serving users requires both nodes to run all critical services and then rebalancing users across the pair.

Cisco Unified IM and Presence

Question

Refer to the exhibit. A collaboration engineer is troubleshooting an issue with high availability on the Cisco IM and Presence Service. Users have not reported any degradation in service. Which steps resolve the issue?

Exhibit

300-810 question #276 exhibit

Options

  • AGo to "Presence Redundancy Group Configuration" on the Cisco UCM Administration page and
  • BGo to "Presence User Assignment" on the Cisco UCM Administration page and select "rebalance
  • CStart all critical services on the second node, and select the Fallback button in the "Presence
  • DStart all critical services on both nodes and select "rebalance users" in the "Presence User

How the community answered

(33 responses)
  • A
    12% (4)
  • B
    3% (1)
  • C
    3% (1)
  • D
    82% (27)

Why each option

Resolving an IM and Presence high availability issue where one node is not serving users requires both nodes to run all critical services and then rebalancing users across the pair.

AGo to "Presence Redundancy Group Configuration" on the Cisco UCM Administration page and

The Presence Redundancy Group Configuration page manages group-level settings and failover parameters but does not directly start services or redistribute users.

BGo to "Presence User Assignment" on the Cisco UCM Administration page and select "rebalance

Rebalancing users without first ensuring all critical services are running on both nodes will fail to restore HA because the second node cannot accept user sessions.

CStart all critical services on the second node, and select the Fallback button in the "Presence

The Fallback button is used to return users to a primary node after a failover event, not to distribute users for normal high availability operation.

DStart all critical services on both nodes and select "rebalance users" in the "Presence UserCorrect

In a Cisco IM and Presence high availability redundancy group, both nodes must have all critical services (XCP Router, SIP Proxy, etc.) running before users can be distributed between them. After confirming services are running, selecting 'Rebalance Users' in the Presence User Assignment page redistributes the assigned user population across both active nodes, restoring the intended load-sharing and failover posture.

Concept tested: Restoring IM and Presence high availability with user rebalancing

Source: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucimpr/14/config/guide/cuc_b_config-and-admin-guide-14/cuc_b_config-and-admin-guide-14_chapter_0101100.html

Topics

#Cisco IM and Presence HA#Service Management#User Rebalancing#Troubleshooting

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