Exam NSE8_812 Topic 1 Question 55 Discussion

The FortiExtender (FEX) is a device that provides wireless WAN connectivity for FortiGate devices by using 3G/4G/LTE cellular networks. The FEX can be managed by the FortiGate device that it connects to, or by a FortiManager device in a centralized management scenario. The FEX can use either Ethernet or CAPWAP connectivity to communicate with the FortiGate device. Ethernet connectivity means that the FEX uses a standard Ethernet connection to send and receive data packets from the FortiGate device. CAPWAP connectivity means that the FEX uses a Control And Provisioning of Wireless Access Points (CAPWAP) tunnel to encapsulate data packets and send them over an IP network to the FortiGate device. If the requirement is to minimize the overhead on the device for WAN traffic, one option is to enable CAPWAP connectivity between the FortiGate and the FEX. This option can reduce the overhead on the device by offloading some of the processing tasks from the CPU to the NP6 processor, which can handle CAPWAP traffic more efficiently than Ethernet traffic. This option can also provide more flexibility and scalability for WAN traffic by allowing multiple FEX devices to connect to a single FortiGate device over an IP network. Reference: https://docs.fortinet.com/document/fortigate/7.0.0/cookbook/19662/configuring-fortigate-with-fortiextender https://docs.fortinet.com/document/fortigate/7.0.0/cookbook/19662/capwap-connectivity