Dell Force10 S25N-S50N Installing S50N and S50V Systems - Page 26

www.dell.com | support.dell.com Figure 4-4. Stacking Topology Using 24G Single-port Modules Module A Switch 1 A A Switch 2 Module B B B Ring topology using two 24Gig modules per unit Switch 3 A B Connecting Two Switches Insert one end of the special stacking cable into a stack port, and insert the other end into a stack port of the adjacent switch. Optionally, insert a second cable into the other open stack port, as shown in Figure 4-5. The second cable provides both backup connectivity and increased data transfer between the units. Figure 4-5. Stack Ports of Two S50V Switches Connected in a Ring STACK STACK STACK STACK FG -48V -48V Current RTN Sharing FG -48V -48V Current RTN Sharing Stack Port A Stack Port B fn00151s25V1 NOTE: These diagrams and instructions use "Stack Port A" and "Stack Port B" for clarifying the connections, but the modules are not labeled. Connecting Three Switches Dell Force10 recommends the ring topology, as outlined above (Figure 4-3 on page 25), for stacking SSeries switches, providing redundant connectivity. Using the example of three switches in the stack (Figure 4-6), and starting with the switch at the bottom of the stack: • Insert one end of the first cable into Stack Port A. • Insert the other end of the cable into Stack Port A of the middle switch. • Insert the second cable into Stack Port B of the middle and top switches. 26 | Installing the Switch