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H12-311_V3.0 · Question #385

After dual-machine hot backup is configured, the main and standby channels cannot be established, and the information on the main device cannot be backed up to the backup device normally, resulting…

The correct answer is B. The source IP address and source port number of the local end are inconsistent with the C. The retransmission times and retransmission intervals of the active and standby service packets D. The TCP channel for sending messages in the active/standby mechanism has not been. See the full explanation below for the reasoning.

WLAN Maintenance and Troubleshooting

Question

After dual-machine hot backup is configured, the main and standby channels cannot be established, and the information on the main device cannot be backed up to the backup device normally, resulting in abnormal dual-machine hot backup function. What is the possible cause of this failure? (Multiple choice)

Options

  • AThe priority value configuration of the two ACs--consistent
  • BThe source IP address and source port number of the local end are inconsistent with the
  • CThe retransmission times and retransmission intervals of the active and standby service packets
  • DThe TCP channel for sending messages in the active/standby mechanism has not been

How the community answered

(59 responses)
  • A
    29% (17)
  • B
    71% (42)

Topics

#dual-machine hot backup#channel establishment#TCP channel#configuration mismatch

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