Shelf Manager Ethernet Connections To Chassis Slots (And Boards); Changing The Shelf Manager Switch Configuration To Prevent Ethernet Loops - Fortinet FortiGate-5144C Manual

FortiGate-5144C Chassis

Shelf manager Ethernet connections to chassis slots (and boards)

The following diagram shows how the shelf managers connect to the chassis slots. Each shelf manager has two
connections to the chassis; one to each of the hub slots. ETH0 connects to SH1 of one chassis slot and ETH1 connects
to SH2 of the other chassis slot.
Shelf Manager Ethernet cross-connections and connections to chassis slots

Changing the shelf manager switch configuration to prevent Ethernet loops

Because ETH0 connects to both shelf manager front panel Ethernet interface and to the chassis backplane base
channel via the shelf manager onboad Ethernet switch, it is possible to create an Ethernet loop if you connect the shelf
FortiGate-5144C 6.2.3 Chassis Guide
Fortinet Technologies Inc.
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