|Description||This article describes the functions of port groups in high end platforms.|
|Scope||FortiOS 6.4, 7.0 and 7.2 GA releases.|
In top end FortiGates for example 2600F, 3400E, 3600E the majority of the physical interfaces are participating in port groups.
Port group can be easily noticed, over the physical interface itself under the GUI's Network --> Interfaces section:
The above example is from an FortiGate-3600E and it easily possible to observe that port3 up to port6 belong to the same group.
A group consists of 4 ports and the settings like interface speed, media type and Forward Error Correction [FEC] need to be the same within the group.
When the user change one of these settings, FortiOS generates a warning messages and changes the setting in order to be identical in the other 3 port group members as well.
For example, speed settings was changed only in port33:
# config system interface
Then, all the other ports three ports in the same group were automatically configured with the same setting:
# show system interface