> Source: [sk105610](https://support.checkpoint.com/results/sk/sk105610)

# sk105610 - QoS rules are not applied when a cluster interface is configured in the "Install On" column of the QoS policy

| Property | Value |
|----------|-------|
| Solution ID | sk105610 |
| Date Created | 2015-04-10 |
| Last Modified | 2019-10-31 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- * QoS rules are not applied when a cluster interface is configured in the "Install On" column of the QoS policy.

* QoS rules are applied correctly when "All" is configured in the "Install On" column of the QoS policy.

## Cause

QoS recognizes the cluster members according to the network subnet of the cluster.

If the physical IP addresses of cluster members and Cluster Virtual IP address are configured on different subnets (which is a supported configuration), QoS does not recognize the cluster members (by the current design).

## Solution

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