Dell EMC ECS EX Series - Connections between Front-End and Back-End Switches Within an EX-Series Rack; Back-End Switch Connections between EX-Series Racks

Figure 4 Connections between front-end and back-end switches within an EX-Series rack
For back-end switch connections between EX-Series racks, port 41 on the back-end switches is
used for the inbound connection and port 45 is used for the outbound connection. These ports are
used for linear and ring topology rack-to-rack connectivity. For more information, see Network
connections between multiple ECS appliances in a single site on page 50.
Figure 5
Back-end switch connections between EX-Series racks
Switches
ECS EXSeries Hardware Guide 19