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Troubleshooting Guide

CloudEngine 16800, 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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How Can I Connect a Stack of CE12800, CE12800E, and CE16800 Switches?

How Can I Connect a Stack of CE12800, CE12800E, and CE16800 Switches?

CE12800 and CE12800E switches have two connection modes, as shown in Figure 22-72.
  • MPU connection mode: separates management links from forwarding links. In this mode, management links are connected through the system interconnect ports (SIPs) on MPUs, and forwarding links are connected through service ports on LPUs.

  • LPU connection mode: integrates management links and forwarding links. In this mode, management links and forwarding links are connected through service ports on LPUs without requiring SIP ports on MPUs.

The CE16800 supports only the MPU connection mode.

Figure 22-72 Stack connection modes of CE12800 and CE12800E

The MPU connection mode is recommended because it separates management links and forwarding links and so ensures stack reliability.

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Updated: 2020-01-07

Document ID: EDOC1000060766

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