Chapter 8, Manage Circuits

This chapter explains how to manage Cisco ONS 15327 electrical, optical, and Ethernet circuits.

Before You Begin

To clear any alarm or trouble conditions, refer to the Cisco ONS 15327 Troubleshooting Guide.

This section lists the chapter procedures (NTPs). Turn to a procedure for applicable tasks (DLPs).

151 Modify Circuit Characteristics—Complete as needed to edit a circuit name, change the active and standby colors of spans, or change signal fail thresholds, signal degrade thresholds, reversion time, and PDI-P settings for UPSR circuits.

79 Create a J1 Path Trace—Complete as needed to monitor interruptions or changes to circuit traffic.

The Cisco Transport Controller Circuits window displays information about circuits to help you manage the circuits, including circuit status and state. Table 8-1 lists the statuses that CTC can report for each circuit.

Table 8-1 ONS 15327 Circuit Status
Status	Definition/Activity
CREATING	CTC is creating a circuit.
ACTIVE	CTC created a circuit. All components are in place and a complete path exists from the circuit source to the circuit destination.
DELETING	CTC is deleting a circuit.
INCOMPLETE	A CTC-created circuit is missing a cross-connect or network span; a complete path from source to destination(s) does not exist. In CTC, circuits are represented using cross-connects and network spans. If a network span is missing from a circuit, the circuit status is INCOMPLETE. However, an INCOMPLETE status does not necessarily mean a circuit traffic failure has occurred, because traffic can flow on a protect path. Network spans are in one of two states: up or down. In CTC circuit and network maps, up spans are displayed as green lines, and down spans are displayed as gray lines. If a failure occurs on a network span during a CTC session, the span remains on the network map but its color changes to gray. If you restart your CTC session while the failure is active, the new CTC session cannot discover the span and its span line will not display on the network map. Subsequently, circuits routed on a network span that goes down will display as ACTIVE during the current CTC session, but they will display as INCOMPLETE to users who log in after the span failure.
UPGRADABLE	A TL1-created circuit or a TL1-like CTC-created circuit is complete and has upgradable cross-connects. A complete path from source to destination(s) exists. CTC can create an active circuit.
INCOMPLETE_UPGRADABLE	A TL1-created circuit or a TL1-like CTC-created circuit with upgradable cross-connects is missing a cross-connect, and a complete path from source to destination(s) does not exist. The circuit cannot be upgraded until missing cross-connects are in place.
NOT_UPGRADABLE	A TL1-created circuit or a TL1-like CTC-created circuit is complete but has at least one non-upgradable cross-connect. UPSR_HEAD, UPSR_EN, UPSR_DC, and UPSR_DROP cross-connects are not upgradable, so all unidirectional UPSR circuits created with TL1 are not upgradable.
INCOMPLETE_NOT_UPGRADABLE	A TL1-created circuit or a TL1-like CTC-created circuit with one or more non-upgradable cross-connects is missing a connection or circuit span (network link); a complete path from source to destination(s) does not exist.

Circuit state, shown in Table 8-2, is a user-assigned, administrative status that defines whether the circuit is in or out of service. To carry circuit traffic, circuits must have a status of active and a state of in service (IS).

Table 8-2 ONS 15327 Circuit States
State	Definition
IS	In service; able to carry traffic
OOS	Out of service; unable to carry traffic
OOS-AINS	Out of service, auto in service; alarm reporting is suppressed, but traffic is carried and loopbacks are allowed. Raised fault conditions, whether their alarms are reported or not, can be retrieved on the CTC Conditions tab or by using the TL1 RTRV-COND command. VT circuits generally switch to IS when source and destination ports are IS, OOS_AINS, or OOS_MT regardless of whether a physical signal is present. STS circuits switch to IS when a signal is received.
OOS-MT	Out of service, maintenance; alarm reporting is suppressed, but traffic is carried and loopbacks are allowed. Raised fault conditions, whether their alarms are reported or not, can be retrieved on the CTC Conditions tab or by using the TL1 RTRV-COND command.

NTP-B199 Locate and View Circuits


Purpose	This procedure provides tasks that you can use to locate and view ONS 15327 circuits.
Tools/Equipment	None
Prerequisite Procedures	Circuit creation procedure(s) in "Create Circuits and VT Tunnels"
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Retrieve or higher

Step 1

Log into the network where you want to view the circuits. See the "DLP-B60 Log into CTC" task for instructions. If you are already logged in, continue with Step 2.

DLP-B262 Filter the Display of Circuits


Purpose	This task filters the display of circuits in the ONS 15327 network, node, or card view Circuits window based on circuit name, size, type, direction, and other attributes.
Tools/Equipment	None
Prerequisite Procedures	60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Retrieve or higher

•

To filter network circuits, from the View menu choose Go to Network View.

•

To filter circuits that originate, terminate, or pass through a specific node, from the View menu. choose Go to Other Node, then choose the node you want to search and click OK.

•

To filter circuits that originate, terminate, or pass through a specific card, double-click the card on the shelf graphic in node view to display the card in card view.

•

Name—Enter a complete or partial circuit name to filter circuits based on circuit name; otherwise leave the field blank.

•

Direction—Choose one: Any (direction not used to filter circuits), 1-way (display only one-way circuits), or 2-way (display only two-way circuits).

•

Status—Choose one: Any (status not used to filter circuits), Active (display only active circuits), Incomplete (display only incomplete circuits, that is, circuits missing a connection or span to form a complete path), or Upgradable (display only upgradable circuits, that is, circuits created in TL1 that are ready to upgrade in CTC). See Table 8-1 for more information about circuit statuses. Although other statuses are described in Table 8-1, filtering is only supported for Active, Incomplete, and Upgradable circuits.

•

State—Choose one: OOS (display only out-of-service circuits), IS (display only inservice circuits), OOS-AINS (display only out of service, auto inservice circuits), or OOS-MT (display only out of service, maintenance circuits.) See Table 8-2 for more information about circuit states.

•

Slot—Enter a slot number to filter circuits based on the source or destination slot; otherwise leave the field blank.

•

Port—Enter a port number to filter circuits based on the source or destination port; otherwise leave the field blank.

•

Type—Choose one: Any (type not used to filter circuits), STS (displays only STS circuits), VT (displays only VT circuits), or VT Tunnel (displays only VT tunnels).

•

Size—Click the appropriate check boxes to filter circuits based on size: VT1.5, STS-1, STS3c, STS-6c, STS-9c, STS-12c, STS-24c, STS-48c. The check boxes that appear depend on what you entered in the Type field. If you chose Any, all sizes are available. If you chose VT, only VT1.5 is available. If you chose STS, only STS sizes are available, and if you chose VT Tunnel or VT Aggregation Point, only STS-1 is available.

Step 4

Click OK. Circuits matching the attributes in the Filter Circuits dialog box appear in the Circuits window.

Step 5

To turn filtering off, click the Filter icon in the lower right corner of the Circuits window. Click the icon again to turn filtering on, and click the Filter button to change the filter attributes.

DLP-B131 Search for Circuits


Purpose	This task searches for an ONS 15327 circuit at the network, node, or card level.
Tools/Equipment	None
Prerequisite Procedures	60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Retrieve or higher

•

To search the entire network, from the View menu choose Go to Network View.

•

To search for circuits that originate, terminate, or pass through a specific node, from the View menu choose Go to Other Node, then choose the node you want to search and click OK.

•

To search for circuits that originate, terminate, or pass through a specific card, double-click the card on the shelf graphic in node view to display the card in card view.

Step 3

If you are in node or card view, choose the scope for the search in the Scope drop-down menu.

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Match Whole Word Only—Select this check box to instruct CTC to select circuits only if the entire word matches the text in the Find What field.

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Match Case—Select this check box to instruct CTC to select circuits only when the capitalization matches the capitalization entered in the Find What field.

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Direction—Choose the direction for the search. Searches are conducted up or down from the currently selected circuit.

Step 6

Click Find Next. If a match is found, click Find Next again to find the next circuit.

DLP-B229 View Circuits on a Span


Purpose	This task displays circuits routed on an ONS 15327 span.
Tools/Equipment	None
Prerequisite Procedures	Circuits must be created on the span. See "Create Circuits and VT Tunnels" 60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Retrieve or higher

Step 1

From the View menu on the node view choose Go to Network View. If you are already in network view, go to Step 2.

Step 2

Right-click the green line containing the circuits you want to view and choose one of the following:

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PCA Circuits—To view circuits routed on a BLSR protected channel. This option does not display if the span you right-clicked is not a BLSR span.

On the Circuits on Span dialog box, you can view the following information for circuits provisioned on the span:

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Switch State—(UPSR span only) Displays the switch state of the circuit, that is, whether any span switches are active. For UPSR spans, switch types include: CLEAR (no spans are switched), MANUAL (a Manual switch is active), FORCE (a Force switch is active), and LOCKOUT OF PROTECTION (a span lockout is active).

NTP-B151 Modify Circuit Characteristics


Purpose	This procedure modifies the properties of ONS 15327 circuits.
Tools/Equipment	None
Prerequisite Procedures	Circuits must exist on the network. See "Create Circuits and VT Tunnels" for circuit creation procedures.
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Step 1

Log into the network containing the circuit you want to modify. See the "DLP-B60 Log into CTC" task for instructions. If you are already logged in, continue with Step 2.

DLP-B230 Change a Circuit State


Purpose	Use this task to change the state of a circuit.
Tools/Equipment	None
Prerequisite Procedures	60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Note

You cannot edit the circuit state if the circuit is routed to nodes with a CTC software release older than Release 3.4. These circuits will automatically be in service (IS).

Note

Alternatively, you can click the Edit button, then click the State tab on the Edit Circuits window.

Step 4

In the Set Circuit State dialog box ( Figure 8-1) change the circuit state by choosing one of the following choices from the Target Circuit State drop-down menu:

Step 5

If you want to apply the state to the circuit source and destination ports, check the Apply to Drop Ports check box.

Note

CTC will not change the state of the circuit source and destination port in certain circumstances. For example, if the circuit size is smaller than the port, for example, a VT1.5 circuit on an STS port, CTC will not change the port state from IS to OOS. If CTC cannot change the port state, a message is displayed and you will need to change the port state manually.

DLP-B231 Edit a Circuit Name


Purpose	Use this task to edit a circuit name.
Tools/Equipment	None
Prerequisite Procedures	60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Step 3

On the General tab, click the Name field and edit or rename the circuit. Names can be up to 48 alphanumeric and/or special characters. However, to ensure that a monitor circuit can be created on this circuit, do not make the name longer than 44 characters because monitor circuits will add "_MON" (four characters) to the circuit name.

Step 6

On the Circuits window, verify that the circuit was correctly renamed.

DLP-B232 Change Active and Standby Span Color


Purpose	Use this task to change the color of active (working) and standby (protect) circuit spans on the detailed circuit map of the Edit Circuits window. By default, working spans are green and protect spans are purple.
Tools/Equipment	None
Prerequisite Procedures	60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

•

To return active and standby spans to their default colors, continue with Step 6.

On the Pick a Color dialog box, click the color for the active span, or click the Reset button if you want the active span to display the last applied (saved) color.

Click OK to close the Pick a Color dialog box. If you want to change the standby span color, continue with Step 5. If not, click OK to save the change and close the Preferences dialog box, or click Apply to save the change and keep the Preferences dialog box displayed.

On the Pick a Color dialog box, click the color for the standby span, or click the Reset button if you want the standby span to display the last applied (saved) color.

Click OK to save the change and close the Preferences dialog box, or click Apply to save the change and keep the Preferences dialog box displayed.

DLP-B233 Edit UPSR Circuit Path Selectors


Purpose	Use this task to change the UPSR signal fail and signal degrade thresholds, the reversion and reversion time, and the PDI-P settings for one or more UPSR circuits.
Tools/Equipment	None
Prerequisite Procedures	44 Provision UPSR Nodes 60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Step 2

Click the UPSR circuit(s) you want to edit. To change the settings for multiple circuits, press the Shift key (to choose adjoining circuits) or the Ctrl key (to choose non-adjoining circuits) and click each circuit you want to change.

Step 3

From the Tools menu, choose Circuits > Set Path Selector Attributes.

Note

Alternatively, for single circuits you can click the Edit button, then click the UPSR Selectors tab on the Edit Circuits window.

Step 4

In the Path Selectors Attributes dialog box ( Figure 8-2), edit the following UPSR selectors, as needed:

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Revertive—If checked, traffic reverts to the working path when conditions that diverted it to the protect path are repaired. If the check box is not selected, traffic does not revert.

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Reversion Time (Min)—If Revertive is checked, this value sets the amount of time that will elapse before traffic reverts to the working path. The range is 0.5 to 12 minutes in 0.5 minute increments.

•

SF Ber Level—Sets the UPSR signal failure BER threshold (STS circuits only).

•

SD Ber Level—Sets the UPSR signal degrade BER threshold (STS circuits only).

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PDI-P—When checked, traffic switches if an STS payload defect indication is received (STS circuits only).

NTP-B416 Convert a CTC Circuit to TL1 Cross-Connects


Purpose	Use this procedure to convert CTC circuits to a set of TL1 cross-connects, which enables you to repair a missing cross-connect or change the cross-connect(s) using the TL1-like circuit option during circuit creation.
Tools/Equipment	None
Prerequisite Procedures	Circuits must exist on the network. See "Create Circuits and VT Tunnels" for circuit creation procedures.
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Note You can only use this procedure with DS-1, DS-3, or OC-N circuits. You cannot use the procedure with Ethernet circuits, VT tunnels, or VT aggregation points.

Step 1

Log into an ONS 15327 node on the network where you want to convert the CTC circuits. See the "DLP-B60 Log into CTC" task for instructions. If you are already logged in, continue with Step 2.

Step 3

Click the Circuits tab and choose the CTC circuit(s) that you want to convert to TL1 cross-connects. The circuit(s) must have an INCOMPLETE or ACTIVE status.

Step 4

From the Tools menu, choose Circuits > Convert CTC Circuit to TL1 Cross-Connects.

The Convert to TL1 Cross Connect Results dialog box displays the results of the conversion. If any circuits could not be converted, those circuits are listed.

If the circuit you selected had an INCOMPLETE status, its status will not change. If you selected an ACTIVE (complete) circuit, its status will change to UPGRADABLE.

Step 7

If you are repairing a circuit, complete the circuit creation procedure in "Create Circuits and VT Tunnels," appropriate to the circuit you are repairing to replace or repair the circuit cross-connects. On the Circuit Creation wizard, shown in Figure 8-3, check Create cross-connects only (TL1-like).

After you repair or replace all missing cross-connects, CTC automatically merges them and the circuit status changes to UPGRADEABLE.

NTP-B417 Upgrade TL1 Cross-Connects to CTC Circuits


Purpose	Use this procedure to convert a series of cross-connects displayed as UPGRADABLE in the CTC Circuits window to an ACTIVE CTC circuit.
Tools/Equipment	None
Prerequisite Procedures	TL1-created or CTC-created TL1-like cross-connects must exist on the network. See "Create Circuits and VT Tunnels" for cross-connect creation procedures.
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Step 1

Log into an ONS 15327 node on the network where you want to upgrade the TL1-created or CTC-created TL1-like cross-connects. See the "DLP-B60 Log into CTC" task for instructions. If you are already logged in, continue with Step 2.

Step 3

Click the Circuits tab and choose one or more circuits with an UPGRADABLE status. These circuits contain a series of cross-connects that are linked together to form a circuit path. The cross-connects might have been created with TL1 or with CTC using the TL1-like cross-connects option.

Step 4

From the Tools menu choose Circuits > Upgrade TL1 Cross-Connects to CTC Circuits.

NTP-B152 Delete Circuits


Purpose	Use this procedure to delete circuits.
Tools/Equipment	None
Prerequisite Procedures	Circuits must exist on the network. See "Create Circuits and VT Tunnels" for circuit creation procedures.
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Step 1

Log into an ONS 15327 node on the network where you want to delete the circuit. See the "DLP-B60 Log into CTC" task for instructions. If you are already logged in, continue with Step 2.

Step 3

Investigate all network alarms and resolve any problems that may be affected by the circuit deletion. Refer to the Alarm Troubleshooting chapter in the Cisco ONS 15327 Troubleshooting Guide.

Step 4

Verify that traffic is no longer carried on the circuit, using local site practices, and that the circuit can be safely deleted.

Step 7

On the Delete Circuits confirmation dialog box, check Set drop ports to OOS if you want to put the circuit source and destination ports out of service. (CTC will place the ports out of service only if the circuit is the same size as the port or is the only circuit using the port.) Click Yes to confirm the deletion.

NTP-B78 Create a Monitor Circuit


Purpose	Use this procedure to create a monitor circuit that monitors traffic on primary, bidirectional circuits.
Tools/Equipment	None
Prerequisite Procedures	Bidirectional (2-way) circuits must exist on the network. See "Create Circuits and VT Tunnels" for circuit creation procedures.
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Note For unidirectional circuits, create a drop to the port where the test equipment is attached.

Step 1

Log into an ONS 15327 node on the network where you will create the monitor circuit. See the "DLP-B60 Log into CTC" task for instructions. If you are already logged in, continue with Step 2.

Step 4

Choose the bidirectional (2-way) circuit that you want to monitor and double-click it (or click Edit).

Step 5

Verify that the circuit name is no more than 44 characters. Monitor circuits append a "_MON" to the circuit name. If the name is longer than 44 characters, edit the name in the Name field, then click Apply.

Note

The Monitor tab is only available when the circuit has an ACTIVE status.

Step 7

On the Monitors tab, choose the monitor source port. The monitor circuit will display traffic coming into the node at the port you choose.

Step 9

In the Circuit Destination section of the Circuit Creation wizard, choose the destination node, slot, port, STS, VT, or DS1 for the monitored circuit.

Step 11

On the Circuit Routing Preferences panel, review the monitor circuit information. If you want the monitor circuit routed on a BLSR protection channel, click Protection Channel Access.

Step 13

On the Edit Circuit window, click Close. The new monitor circuit appears on the Circuits tab.

NTP-B79 Create a J1 Path Trace


Purpose	Use this procedure to create a repeated, fixed-length string of characters used to monitor interruptions or changes to circuit traffic.
Tools/Equipment	ONS 15327 cards capable of transmitting and/or receiving path trace must be installed. See Table 8-3 for a list of cards.
Prerequisite Procedures	Path trace can only be provisioned on OC-N (STS) circuits. See "Create Circuits and VT Tunnels" for OC-N circuit creation procedures.
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Step 1

Log into the node on the network where you will create the path trace. See the "DLP-B60 Log into CTC" task for instructions. If you are already logged in, continue with Step 2.

DLP-B264 Provision Path Trace on Circuit Source and Destination Ports


Purpose	Use this task to create a path trace on STS circuit source ports and destination ports.
Tools/Equipment	ONS 15327 cards capable of transmitting and receiving path trace must be installed at the circuit source and destination ports. See Table 8-3 for a list of cards.
Prerequisite Procedures	60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Note This procedure assumes you are setting up path trace on a bidirectional circuit and setting up transmit strings at the circuit source and destination.

Step 2

For the STS circuit you want to monitor, verify that the source and destination ports are on a card that can transmit and receive the path trace string. See Table 8-3 for a list of cards.

If neither port is on a transmit/receive card, you will not be able to complete this task. If one port is on a transmit/receive card and the other is on a receive-only card, you can set up the transmit string at the transmit/receive port and the receive string at the receive-only port, but you will not be able to transmit in both directions.

Table 8-3 ONS 15327 Cards Capable of Path Trace
J1 Function	Cards
Transmit and Receive	XTC (DS-1) G1000-2
Receive Only	OC3 IR 4 1310 OC12 IR 1310, OC12 LR 1550 OC48 IR 1310, OC48 LR 1550

Step 3

Choose the STS circuit you want to trace, then double-click it (or click Edit).

Step 4

On the Edit Circuit window, click the Show Detailed Map check box at the bottom of the window. A detailed map of the source and destination ports is displayed.

On the detailed circuit map right-click the circuit source port (the square on the left or right of the source node icon) and choose Edit J1 Path Trace (port) from the shortcut menu.

In the New Transmit String field, enter the circuit source transmit string. Enter a string that makes the source port easy to identify, such as the node IP address, node name, circuit name, or another string. If the New Transmit String field is left blank, the J1 transmits a string of null characters.

On the detailed circuit map, right-click the circuit destination port and choose Edit Path Trace from the shortcut menu.

In the New Transmit String field, enter the string that you want the circuit destination to transmit. Enter a string that makes the destination port easy to identify, such as the node IP address, node name, circuit name, or another string. If the New Transmit String field is left blank, the J1 transmits a string of null characters.

In the Circuit Path Trace window, enable the path trace expected string by choosing Auto or Manual from the Path Trace Mode drop-down menu:

•

Auto—The first string received from the source port is the baseline. An alarm is raised when a string that differs from the baseline is received.

•

Manual—The string entered in the Current Expected String is the baseline. An alarm is raised when a string that differs from the Current Expected String is received.

If you set the Path Trace Mode field to Manual, enter the string that the circuit destination should receive from the circuit source in the New Expected String field. If you set the Path Trace Mode field to Auto, skip this step.

Click the Disable AIS if TIM-P is detected check box if you want to suppress the alarm indication signal (AIS) when the STS Path Trace Identifier Mismatch Path (TIM-P) alarm is displayed. Refer to the Cisco ONS 15327 Troubleshooting Guide for descriptions of alarms and conditions.

Note

Remote Defect Indicator (RDI) conditions on TIM-P are not generated in this software release.

On the Edit Circuit window (with Show Detailed Map chosen) right-click the circuit source port and choose Edit Path Trace from the shortcut menu.

In the Circuit Path Trace window, enable the path trace expected string by choosing Auto or Manual from the Path Trace Mode drop-down menu:

•

Auto—Uses the first string received from the port at the other end as the baseline string. An alarm is raised when a string that differs from the baseline is received.

•

Manual—Uses the Current Expected String field as the baseline string. An alarm is raised when a string that differs from the Current Expected String is received.

If you set Path Trace Mode to Manual, enter the string that the circuit source should receive from the circuit destination in the New Expected String field. If you set Path Trace Mode to Auto, skip this step.

Click the Disable AIS and RDI if TIM-P is detected check box if you want to suppress the alarm indication signal (AIS) when the STS Path Trace Identifier Mismatch Path (TIM-P) alarm is displayed. Refer to the Cisco ONS 15327 Troubleshooting Guide for descriptions of alarms and conditions.

Note

Remote Defect Indicator (RDI) conditions on TIM-P are not generated in this software release.

Step 9

After you set up the path trace, the received string appears in the Received field on the path trace setup window. Figure 8-4 shows an example. The following options are available:

•

Click Hex Mode to display path trace in hexadecimal display. The button name changes to ASCII Mode. Click it to return the path trace to ASCII display.

•

Click Default to return to the path trace default settings (Path Trace Mode is set to Off and the New Transmit and New Expected Strings are null).

The Expect and Receive strings are updated every few seconds if the Path Trace Mode field is set to Auto or Manual.

When you display the detailed circuit window, path trace is indicated by an M (manual path trace) or an A (automatic path trace) at the circuit source and destination ports. Figure 8-5 shows an example.

DLP-B137 Provision Path Trace on OC-N Ports


Purpose	Use this task to monitor a path trace on OC-N ports within the circuit path.
Tools/Equipment	The OC-N ports you want to monitor must be on OC-N cards capable of receiving path trace. See Table 8-3.
Prerequisite Procedures	264 Provision Path Trace on Circuit Source and Destination Ports 60 Log into CTC
Required/As Needed	As needed
Onsite/Remote	Onsite or remote
Security Level	Provisioning or higher

Step 1

Display the node where path trace was provisioned on the circuit source and destination ports.

Step 3

Choose the STS circuit that has path trace provisioned on the source and destination ports, then click Edit.

Step 4

On the Edit Circuit window, click the Show Detailed Map check box at the bottom of the window. A detailed circuit graphic showing source and destination ports appears.

Step 5

In the detailed circuit map right-click the circuit OC-N port (the square on the left or right of the source node icon) and choose Edit Path Trace from the shortcut menu.

Note

The OC-N port must be on a receive-only card listed in Table 8-3. If not, the Edit Path Trace menu item will not appear.

Step 6

In the Circuit Path Trace window, enable the path trace expected string by choosing Auto or Manual from the Path Trace Mode drop-down menu:

•

Auto—Uses the first string received from the port at the other end as the baseline string. An alarm is raised when a string that differs from the baseline is received. For OC-N ports, Auto is recommended, since Manual mode requires you to trace the circuit on the Edit Circuit window to determine whether the port is the source or destination path.

•

Manual—Uses the Current Expected String field as the baseline string. An alarm is raised when a string that differs from the Current Expected String is received.

Step 7

If you set the Path Trace Mode field to Manual, enter the string that the OC-N port should receive in the New Expected String field. To do this, trace the circuit path on the detailed circuit window to determine whether the port is in the circuit source or destination path, then set the New Expected String field to the string transmitted by the circuit source or destination. If you set the Path Trace Mode field to Auto, skip this step.

Table Of Contents

Manage Circuits

Before You Begin

NTP-B199 Locate and View Circuits

DLP-B262 Filter the Display of Circuits

DLP-B131 Search for Circuits

DLP-B229 View Circuits on a Span

NTP-B151 Modify Circuit Characteristics

DLP-B230 Change a Circuit State

DLP-B231 Edit a Circuit Name

DLP-B232 Change Active and Standby Span Color

DLP-B233 Edit UPSR Circuit Path Selectors

NTP-B416 Convert a CTC Circuit to TL1 Cross-Connects

NTP-B417 Upgrade TL1 Cross-Connects to CTC Circuits

NTP-B152 Delete Circuits

NTP-B78 Create a Monitor Circuit

NTP-B79 Create a J1 Path Trace

DLP-B264 Provision Path Trace on Circuit Source and Destination Ports

DLP-B137 Provision Path Trace on OC-N Ports