Use the Loopback (or Loopback > Port) subtab to initiate terminal or facility loopbacks. For a list of
ONS nodes and cards that support this subtab, see
Maintenance.
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Displays the port number.
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Displays the port administrative state. Choose an administrative state from the drop-down list and click Apply to change the port service state unless network conditions prevent the change. Administrative states include:
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unlocked —Puts the port in service. The port service state changes to unlocked-enabled. |
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locked,disabled —Removes the port from service and disables it. The port service state changes to unlocked-enabled,disabled. |
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locked,maintenance —Removes the port from service for maintenance. The port service state changes to unlocked-enabled,maintenance. For loopbacks, the locked,maintenance admin state must be initiated. |
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unlocked,automaticInService —Puts the port in automatic in-service. The port service state changes to unlocked-disabled,automaticInService. |
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CTC will not allow you to change a port service state from unlocked-enabled to locked-enabled,disabled. You must first change a port to the locked-enabled,maintenance service state before putting it in the locked-enabled,disabled service state. |
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An autonomously generated state that gives the overall condition of the port. Service states appear in the format: AdministrativeState- OperationalState, StatusAttribute. For additional state information, see States.
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Allows you to provision a terminal or facility loopback, or clear an existing current loopback (none). Loopbacks can only be provisioned when the service state is unlocked-enabled,maintenance.
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Send AIS on Facility Loopback
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(Does not apply to all cards) When checked, sends an alarm indication signal when a facility loopback occurs.
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Send AIS on Terminal Loopback
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(Does not apply to all cards) When checked, sends an alarm indication signal when a terminal loopback occurs.
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(Does not apply to all cards) When checked, inhibits far-end loopback.
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Applies changes made to the fields in the tab.
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Cancels any changes to the tab and returns the fields to their last-saved settings.
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Displays context-sensitive help.
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