> Source: [sk182146](https://support.checkpoint.com/results/sk/sk182146)

# sk182146 - High CPU utilization  on SND when Jumbo Frames are configured (MTU above 1500) 

| Property | Value |
|----------|-------|
| Solution ID | sk182146 |
| Date Created | 2024-03-26 |
| Last Modified | 2024-04-01 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R81.20, R81.10 (EOS) |
| OS | Gaia |

## Symptoms

- * High CPU utilization on an SND instance when the MTU configured on the Security Gateway is above 1500.

* Output of the command `'perf top -C snd'` shows:   

  `__memcpy`  
  `
  kfree`

## Solution

[Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing it.  
For faster resolution and verification, collect these files:

1. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Management Server involved in the case.
2. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Security Gateway / each Cluster Member involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/sk168597).

---

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