Item
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Description
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Name
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The circuit name. The name can be alphanumeric and up to 48 characters (including spaces). Circuit names should be 44 characters or less to preserve the ability to create monitor circuits. If you leave the field blank, CTC assigns a default name to the circuit.
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Type
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(Display only) STS.
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Size
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Sets the STS circuit size. Available sizes are STS-1, STS-3c (concatenated), STS-6c, STS-9c, STS-12c, STS-18c, STS-24c, STS-36c, STS-48c, and STS-192c. Available size depends on the source and destination card/port. STS circuit size requires the appropriate OC-N card capacity at the circuit source and destination nodes.
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Bidirectional
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If checked, creates a bidirectional STS circuit.
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Create cross-connects only (TL1-like)
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Creates one or more cross-connects to complete a signal path for TL1-generated circuits. If this box is checked, you cannot assign a name to the circuit or choose an E-Series card as a circuit source or destination.
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State
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Lists the administrative states. An administrative state puts the circuit cross-connects into the related service state if network conditions allow:
OOS,DSBLD-Puts the circuit cross-connects in the Out-of-Service and
Management, Disabled (OOS-MA,DSBLD) service state. Traffic is not
passed on the circuit.
IS-Puts the circuit cross-connects in the In-Service, Normal (IS-NR)
service state.
IS,AINS-Puts the circuit cross-connects in the Out-of-Service and
Autonomous, Automatic In-Service (OOS-AU,AINS) service state. Alarms
and conditions are suppressed. When the connections receive a valid signal,
the service state automatically changes to IS-NR.
OOS,MT-Puts the circuit cross-connects in the Out-of-Service and
Management, Maintenance (OOS-MA,MT) service state. The OOS-MA,MT
service state does not interrupt traffic flow; it suppresses alarms and
conditions and allows loopbacks to be performed on the circuit. Use the
OOS,MT administrative state for circuit testing or to suppress circuit alarms
temporarily. Change the administrative state to IS; IS,AINS; or OOS,DSBLD
when testing is complete.
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Apply to drop ports
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Applies the state chosen in the State field to the circuit source and destination ports. CTC applies the circuit state to the ports only in the following cases:
A Warning dialog box shows the ports where the circuit state could not be applied. If the box is unchecked, CTC does not change the state of the source and destination ports.
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Provision working go & return on primary path
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If checked, the shortest path is the working path for both traffic directions. If unchecked, only one direction makes the shortest path the working path.
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Revertive
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If checked, traffic reverts to the working path when the conditions that diverted it to the protect path are repaired. If unchecked, traffic remains on the protect path after the switch.
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Reversion time
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Available when Revertive is checked. Sets the amount of time (in minutes) that will elapse before traffic reverts to the working path. Traffic can revert when conditions causing the switch are cleared. The range is 0.5 to 12.0 minutes. The default is 5.0 minutes.
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SF threshold
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Sets the unidirectional path switched ring (UPSR) path-level signal failure bit error rate (BER) thresholds. Valid entries are IE-3, IE-4, and IE-5.
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SD threshold
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Sets the UPSR path-level signal degrade BER thresholds. Valid entries are IE-5, IE-6, IE-7, IE-8, and IE-9.
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Switch on PDI-P
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If checked, traffic switches when an STS payload defect indicator is received.
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Protected Drops (non-Ethernet)
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If checked, CTC displays only protected cards as source and destination choices, that is, to ONS cards that are in 1:1, 1:N, or 1+1 protection.
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Back
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Displays the Circuit Creation page.
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Next
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Displays the Circuit Source page.
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Cancel
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Cancels circuit creation.
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Help
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Displays context-sensitive help.
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