
Overview
- 802.3ad Aggregate is a method of grouping 2 or more network ports together making them a single connection to consolidate bandwidth (trunking) or provide faul tolerance
- 802.3ad Aggregate with trunking feature increases the connection speed beyond the speed of single cable or single network port
- The improvement in tranfer efficiency really makes sense in a server environment where multiple connections are made from workstations
- Redundant also creates higher availabily and helps to avoid disruptions in network transmission
Diagram
How to configure
- Login to the Fortigate web interface page with an Admin account
- Choose Network -> Choose Interfaces -> Click Create New -> Choose Interface

- Enter name for Interface
- Choose Type: Choose 802.3ad Aggregate

- In Interface members: Choose ports which you want
- In Role: Choose LAN or DMZ according to your needs
- In IP/Netmask: Enter IP to manage
- In Administrative access: Choose service which you want
-> Click OK

- We can create VLANs with the 802.3 ad Aggregate interface just created
- In Interfaces -> Choose Create New -> Choose Interface
- Enter name for VLAN
- In Type: Choose VLAN
- In Interface: Choose interface 802.3ad which was created before
- In VLAN ID: Enter VLAN ID which you want
- In Role: Choose LAN
- In Address: Enter IP gateway of VLAN

- In Administrative access -> Choose services which you want
- In DHCP: Enable it
- In Address range: Enter range IP which you want
- In DNS server: Enter DNS which you want

-> Click OK
- Check config

** After configuring the 802.3ad Aggregate feature, on the Switch device we will configure Port Channel for 2 network ports running trunk with Fortigate device
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