301B: BIG-IP LTM Specialist: Maintain and TroubleshootDemo

By F5 · Question Mode

QuestionQ71

Identify and Resolve LTM Device Issues

An LTM Specialist is troubleshooting a problem in which one LTM device in a three-device LTM group fails to synchronize after a synchronize to group command is issued. The LTM Specialist confirms that no packet filters, port lockdown settings, or network issues are preventing the connection.

What are two reasons the synchronization group is experiencing issues?

Choose two
  • A Certificates expired on all of the peer LTM devices.
  • B Certificates stored for the device trusts on all of the peer LTM devices are corrupted.
  • C Admin passwords changed on one of the peer LTM devices that are able to synchronize.
  • D Admin password changed on the LTM device NOT receiving the synchronized configurations.
  • E Certificates stored for the device trusts on the LTM device NOT receiving the configuration are corrupted.
Explanation

A BIG-IP device must have a functioning local device-trust relationship to receive ConfigSync data. Changing the administrator password on the receiving device can leave the peer-side credentials stale, preventing communication with that device. Corruption of the device-trust certificates stored on the receiving device also breaks the trust relationship required for synchronization. F5 documentation requires device trust before manual configuration synchronization and uses the remote administrator credentials and device certificate when establishing that trust.

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