> Source: [sk160552](https://support.checkpoint.com/results/sk/sk160552)

# sk160552 - Cannot add VLAN subinterfaces to Maestro Orchestrator Switches, "Failed to run 'tor_util', 'set_uplink_port'" error message

| Property | Value |
|----------|-------|
| Solution ID | sk160552 |
| Date Created | 2019-08-17 |
| Last Modified | 2022-08-03 |
| Technical Level | General |
| Products | Scalable Platforms |
| Versions | R82.20, R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * Adding a VLAN interface to a Security Group results in this error message:

  "`Failed to run 'tor_util', 'set_uplink_port'`"
  ![](https://sc1.checkpoint.com/sc//SolutionsStatics/sk160552/sk1605521908172307.png)

  <br />

* Network traffic on an interface or bond with more than 42 VLANs fails.

  ARP resolution on the Security Gateway Module (SGM) level shows "`arp incomplete`" for the affected VLANs.

## Cause

There is a limitation of a maximum of 42 VLANs for each uplink port on a Maestro Orchestrator Switch.

MHO 140 and MHO 170 are affected.

## Solution

This problem was fixed. The fix is included starting from:

* [Jumbo Hotfix Accumulator for R80.20SP Take 304](https://supportcenter.us.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk155832)

For more information about this important enhancement, see [sk170294: Maestro VLANs configuration enhancement](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk170294).

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