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

## Product
Check Point Appliances

## Version
R80.40 (EOS), R81 (EOS), R81.10 (EOS), R81.20

## Last Modified
2024-10-22

## 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).

#### NOTE

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

## Article Properties

**Access Level**: General  
**Status**: Approved by TAC  
**Date Created**: 2023-03-22  
**Last Modified**: 2024-10-22