> Source: [sk114212](https://support.checkpoint.com/results/sk/sk114212)

# sk114212 - Synchronization in cluster is broken after moving the "1st Sync" Network Objective to an interface that was defined as "Non-Monitored Private"

| Property | Value |
|----------|-------|
| Solution ID | sk114212 |
| Date Created | 2016-10-28 |
| Last Modified | 2016-11-01 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- * Synchronization in cluster is broken after moving the "`1st Sync`" Network Objective to another interface:

  1. In SmartDashboard, open the cluster object
  2. Go to *Topology* pane - click on *Edit...* button
  3. For the current interface with "`1st Sync`" Network Objective, select the "`Cluster`" Network Objective
  4. For the interface with "`Non-Monitored Private`" Network Objective, select the "`1st Sync`" Network Objective
  5. Click on OK
  6. Install policy
  7. Synchronization in cluster is broken at this point
  8. Output of "`cphaprob -a if`" command shows that the new configuration was applied only partially:
     * interface that was defined with "`1st Sync`" Network Objective is shown as "`UP`" and as "`non sync(non secured)`"
     * interface that was defined with "`Non-Monitored Private`" Network Objective and now is defined with "`1st Sync`" Network Objective is still shown as "`Disconnected`" and as "`sync(secured)`"
* *Example* - "Sync" interface was the "`1st Sync`", and "eth1-01" interface was "`Non-Monitored Private`" and was re-defined as new "`1st Sync`":

  ```
  
  Required interfaces: 3 
  Required secured interfaces: 1 
  
  Mgmt       Disconnected          non sync(non secured), broadcast 
  Sync       UP                    non sync(non secured), broadcast 
  eth1-01    Disconnected          sync(secured), broadcast 
  ```

## Cause

A "Non-Monitored Private" interface is not monitored by ClusterXL. It is handled like a disconnected interface.

Changing a "`Non-Monitored Private`" interface to be "`1st Sync`" is not supported directly.

## Solution

This solution requires authentication. Please log in to view the full solution.

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