> Source: [sk180724](https://support.checkpoint.com/results/sk/sk180724)

# sk180724 - The highest monitored VLAN over a bond interface is down after changing the bond's properties

| Property | Value |
|----------|-------|
| Solution ID | sk180724 |
| Date Created | 2023-03-22 |
| Last Modified | 2024-10-22 |
| Technical Level | General |
| Products | Hardware |
| Versions | Not Version-Specific |

## Symptoms

- * The VLAN configured bonded interface monitored state disappear after modifying the bonded interface properties such as when changing the bond's xmit-hash-policy algorithm or changing the LACP speed.
* The bond's highest VLAN is missing as seen in the outputs of "cphaprob -a -m if":  
  `[Expert@M1:0]# cphaprob -m if`  
  `ClusterXL VLAN monitoring per interface:`  

  `Interface | Low VLAN | High VLAN`  
  `-----------------+--------------+------------------`  
  `bond2 | 1001 | not configured`  
  `bond1 | 1003 | not configured`

* Setting the interface's state to off and then on resolves the issue.  
  *Clish> set interface bond2.1002 state off*  
  *Clish> set interface bond2.1002 state on
  [Expert@M1:0]# cphaprob -m if**ClusterXL VLAN monitoring per interface:
  Interface | Low VLAN | High VLAN
  -----------------+--------------+------------------
  bond2 | 1001 | **1002**
  bond1 | 1003 | not configured*

## Cause

The VLAN state is not updated after modifying the bond's configuration.

## Solution

This problem was fixed. The fix is included in:

* [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 89
* [Jumbo Hotfix Accumulator for R81.10](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.10/Default.htm) starting from Take 170
* [Jumbo Hotfix Accumulator for R81](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81/Default.htm) starting from Take 106

If you choose not to upgrade, Check Point can supply a **Hotfix** . [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 the Hotfix.  
For faster resolution and verification, please collect [CPinfo files](http://supportcontent.checkpoint.com/solutions?id=sk92739) from the Security Management Server and Security Gateways involved in the case.

**Hotfix installation instructions:**   
Refer to [sk168597 - How to install a Hotfix](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk168597).

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