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11.2.3 Circuit States

Partial is appended to the Locked circuit service state when circuit cross-connects state are mixed

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and not all in the Unlocked-enabled service state. The Locked-partial state can occur during

automatic or manual transitions between states. The Locked-partial service state can appear during

a manual transition caused by an abnormal event such as a CTC crash or communication error, or if

one of the cross-connects could not be changed. Refer to the Cisco ONS 15454 SDH

Troubleshooting Guide for troubleshooting procedures. The Locked-partial circuit state does not

apply to OCHNC circuit types.

You can assign a state to circuit cross-connects at two points:

During circuit creation, you can set the state on the Create Circuit wizard.

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After circuit creation, you can change a circuit state in the Edit Circuit window or from the

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Tools > Circuits > Set Circuit State menu.

After you have created an initial circuit in a CTC session, the subsequent circuit states default to the

Note

circuit state of the initial circuit, regardless of which nodes in the network the circuits traverse or the

node.ckt.state default setting.

During circuit creation, you can apply a service state to the drop ports in a circuit. You cannot transition

a port from the Unlocked-enabled service state to the Locked-enabled,disabled state. You must first

transition the port to the Locked-enabled,maintenance state before changing it to the

Locked-enabled,disabled state. For more information about port service state transitions, see

Appendix B, "Administrative and Service States."

Circuits do not use the soak timer, but ports do. The soak period is the amount of time that the port

remains in the Unlocked-disabled,automaticInService service state after a signal is continuously

received. When the cross-connects in a circuit are in the Unlocked-disabled,automaticInService service

state, the ONS 15454 SDH monitors the cross-connects for an error-free signal. It changes the state of

the circuit from Locked to Unlocked or to Locked-partial as each cross-connect assigned to the circuit

path is completed. This allows you to provision a circuit using TL1, verify its path continuity, and

prepare the port to go into service when it receives an error-free signal for the time specified in the port

soak timer.

To find the remaining port soak time, choose the Maintenance > AINS Soak tabs in card view and click

the Retrieve button. If the port is in the Unlocked-disabled,automaticInService state and has a good

signal, the Time Until IS column shows the soak count down status. If the port is

Unlocked-disabled,automaticInService and has a bad signal, the Time Until IS column indicates that the

signal is bad. You must click the Retrieve button to obtain the latest time value.

Although ML-Series cards do not use the Telcordia GR-1093-CORE state model, you can also set a soak

Note

timer for ML-Series cards ports. The soak period is the amount of time that the ML-Series port remains

in the Down state after an error-free signal is continuously received before changing to the Up state. To

find the remaining port soak time, choose the Maintenance > Ether/POS Port Soak tabs in ML-Series

card view and click the Retrieve button.

For more information about cross-connect states, see

Cisco ONS 15454 SDH Reference Manual, R8.5

11-8

Chapter 11 Circuits and Tunnels

Appendix B, "Administrative and Service States."

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