> Source: [sk109219](https://support.checkpoint.com/results/sk/sk109219)

# sk109219 - 'fwk_dev' process consumes CPU at high level on VSX Virtual Switch

| Property | Value |
|----------|-------|
| Solution ID | sk109219 |
| Date Created | 2015-12-21 |
| Last Modified | 2016-12-04 |
| Technical Level | Advanced |
| Products | Security Gateway, Hardware |
| Versions | R82.10, R82, R81.20, Not Version-Specific |
| OS | Gaia |

## Symptoms

- * Output of "*top* " command on a VSX Gateway shows that '`fwk_dev`' process that belongs to a Virtual Switch consumes CPU at high level.

* Kernel debug on a VSX Gateway ('`fw ctl debug -m fw + drop`') might show:  

  `;fw_log_drop_ex: Packet proto= ... dropped by fwkdrv_enqueue_packet_user_ex Reason: Instance is currently fully utilized;`

## Cause

Multiple Virtual System are connected to this Virtual Switch.

If traffic should pass from one Virtual System via Virtual Switch to another Virtual System, then 'wrp' jump takes place. Meaning - the traffic does not physically pass via the Virtual Switch. Instead, by design, traffic is forwarded (F2F) to Check Point kernel.

As a result, in cases of high amount of traffic, 'fwk_dev' process that belongs to the relevant Virtual Switch might cause high CPU utilization.

## Solution

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

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