FortiSwitchOS 7.6.1 FortiLink Release Notes

Change log

What's new in FortiOS 7.6.1

The following list contains new managed FortiSwitch features added in FortiOS 7.6.1:

• The FortiOS switch controller now supports QinQ. With QinQ, each client of a managed security service provider (MSSP) can have a unique customer VLAN with a self-managed 4k VLAN range in its own virtual domain. QinQ allows better segregation and control over network traffic.
• The FortiOS switch controller now supports VLAN pruning. VLAN pruning prevents unnecessary traffic from unused VLANs by only allowing traffic from the VLANs required for the inter-switch link (ISL) trunks. This process makes networks more efficient and preserves bandwidth. In addition, VLAN pruning eliminates the time spent on manual VLAN pruning and reduces the chance of errors.
• The command for enabling VLAN optimization has changed from set vlan-optimization enable to set vlan-optimization configured; the command is still located under config switch-controller global.
• The following FortiGate models now support more FortiSwitch units:

• The default neighbor-detection method has been updated. Previously, the default method was “FortiLink" (set fortilink-neighbor-detect fortilink). With this release, the default neighbor-detection method is now "LLDP” (set fortilink-neighbor-detect lldp). You can configure the neighbor-detection method under the config system interface command.
• The password security for managed switches has been improved. Empty passwords for the FortiSwitch admin account are no longer allowed. If a switch has no admin password set when it is authorized, the FortiGate device will generate an admin password for the FortiSwitch unit. FortiSwitch units that already have an admin password configured will remain unaffected. To log in to the FortiSwitch CLI or GUI, you can configure the switch profile (under the config switch-controller switch-profile command) with an admin password on the FortiGate device, which is the Fortinet-recommended FortiLink setup.
• A new command has been introduced to retain the password of the managed switch during deauthorization or to reset the managed switch to factory default settings during deauthorization. This command helps to clear the previously FortiGate-set random password on the managed switch when it is deauthorized.

Introduction

This document provides the following information for FortiSwitch 7.6.1 devices managed by FortiOS 7.6.1 build 3457:

• Special notices on page 7
• Upgrade information on page 8
• Product integration and support on page 9
• Resolved issues on page 10
• Known issues on page 11

See the Fortinet Document Library for FortiSwitchOS documentation.

Refer to the FortiLink Compatibility table to find which FortiSwitchOS versions support which FortiOS versions.

? FortiLink is not supported in transparent mode.

The maximum number of supported FortiSwitch units depends on the FortiGate model:

? New models (NPI releases) might not support FortiLink. Contact Customer Service & Support to check support for FortiLink.

Special notices

Support of FortiLink features

? Refer to the FortiSwitchOS feature matrix for details about the FortiLink features supported by each FortiSwitchOS model.

Upgrade information

? Check the FortiSwitchOS Release Notes before upgrading the FortiSwitch firmware from the FortiGate Switch Controller.

FortiSwitchOS 7.6.1 supports upgrading from FortiSwitchOS 3.5.0 and later.

To determine a compatible FortiOS version, check the FortiLink Compatibility matrix.

Within the Security Fabric, the FortiSwitch upgrade is done after the FortiGate upgrade. Refer to the latest FortiOS Release Notes for the complete Security Fabric upgrade order.

Product integration and support

FortiSwitchOS 7.6.1 support

The following table lists FortiSwitchOS 7.6.1 product integration and support information.

Resolved issues

The following issues have been fixed in FortiOS 7.6.1. For inquiries about a particular bug, please contact Customer Service & Support.

Known issues

The following known issues have been identified with FortiOS 7.6.1. For inquiries about a particular bug or to report a bug, please contact Fortinet Customer Service & Support.

config system global
  set lldp-reception enable
  set lldp-transmission enable
end