Dell Force10 S4810P - Connect Two S4820 T Systems

34 | Installing the S4820T
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Figure 4-8. S4820T Stacking Topology
Connect Two S4820T Systems
To provide backup connectivity and increased data transfer between the systems, Dell Force10
recommends inserting an additional cable between the two units, in a second stacking port, as shown in
Figure 4-9 .
You can use any of the RJ-45 or QSFP+ ports for stacking, provided it is configured as a stacking port.
CAUTION: To connect S4820T systems, use only Dell Force10 supported stacking cables.
To connect two S4820T systems in a ring ( Figure 4-9 ), starting with the S4820T at the bottom of the
stack, follow these steps:
NOTE: The port numbers in the following procedure are examples only.
Step Task
1 Insert one end of the first cable into stack port 60 in chassis 1 (bottom).
2 Insert the other end of the same cable into stack port 52 on chassis 2 (top).
3 Insert a second cable into stack port 56 on chassis 2 (top).
4 Insert the other end of the second cable into stack port 56 on chassis 1 (bottom).
Ring Topology Cascade Topology
Chassis 1
Chassis 2
Chassis 3
52 60
48 56
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52 60
48 56
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52 60
48 56
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52 60
48 56
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52 60
48 56
.....
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52 60
48 56
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