> Source: [sk42065](https://support.checkpoint.com/results/sk/sk42065)

# sk42065 - Traffic is being dropped when more than one cluster is connected to the same switch

| Property | Value |
|----------|-------|
| Solution ID | sk42065 |
| Date Created | 2009-06-12 |
| Last Modified | 2019-04-08 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * Traffic is dropped or not reaching the correct cluster when there is more than one cluster on the same switch.
* In a Cluster HA environment, the output of 'cphaprob stat' command shows the "would be active" member as 'Ready'.

## Cause

1) When Broadcast mode is used for CCP and Forwarding Layer traffic (and in certain other cases), cluster traffic intended for one cluster is seen by all connected clusters, and is processed by the wrong cluster, which causes communication problems

2) Both the members in question have the same *fwha_mac_magic* and *fwha_mac_forward_magic* numbers

3) Example of *cphaprob stat* output:

*\[Expert@R75.47-2\]# cphaprob stat*

*Cluster Mode: New High Availability (Active Up) with IGMP Membership*   
*Number Unique Address Assigned Load State* *1 40.40.40.41 0% Ready* *2 (local) 40.40.40.42 0% Standby*

## Solution

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

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