Cisco ONS 15454 SDH Procedure Guide, Releases 4.1.1 and 4.5
Chapter 15, Convert Network Configurations
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Convert Network Configurations

Table Of Contents

Convert Network Configurations

Before You Begin

NTP-D154 Convert a Point-to-Point to a Linear ADM

DLP-D298 Check the Network for Alarms and Conditions

NTP-D155 Convert a Point-to-Point or a Linear ADM to a Two-Fiber MS-SPRing

DLP-D189 Verify that a 1+1 Working Slot is Active

NTP-D156 Convert a Point-to-Point or Linear ADM to an SNCP

NTP-D210 Convert an SNCP to a Two-Fiber MS-SPRing

NTP-D211 Convert a Two-Fiber MS-SPRing to a Four-Fiber MS-SPRing

NTP-D159 Modify an MS-SPRing

DLP-D24 Change an MS-SPRing Node ID

NTP-D235 Manage MS-SPRing Manual Ring Switches

DLP-D301 Initiate an MS-SPRing Manual Ring Switch

DLP-D241 Clear an MS-SPRing Manual Ring Switch


Convert Network Configurations


This chapter explains how to convert from one SDH topology to another in an ONS 15454 SDH network. For initial network turn up, see Chapter 6, "Turn Up Network."


Note The procedures in this chapter do not apply to DWDM (Software Release 4.5) nodes.


Before You Begin

Before performing any of the following procedures, investigate all alarms and clear any trouble conditions. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide as necessary.

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

1. D154 Convert a Point-to-Point to a Linear ADM—Complete as needed.

2. D155 Convert a Point-to-Point or a Linear ADM to a Two-Fiber MS-SPRing—Complete as needed.

3. D156 Convert a Point-to-Point or Linear ADM to an SNCP—Complete as needed.

4. D210 Convert an SNCP to a Two-Fiber MS-SPRing—Complete as needed.

5. D211 Convert a Two-Fiber MS-SPRing to a Four-Fiber MS-SPRing—Complete as needed.

6. D159 Modify an MS-SPRing—Complete as needed.

7. D235 Manage MS-SPRing Manual Ring Switches—Complete as needed.

NTP-D154 Convert a Point-to-Point to a Linear ADM

Purpose

This procedure upgrades a point-to-point configuration (two nodes) to a linear add/drop multiplexer (ADM) configuration (three or more nodes).

Tools/Equipment

None

Prerequisite Procedures

NTP-D124 Provision a Point-to-Point Network, page 6-4

Required/As Needed

As needed

Onsite/Remote

Onsite

Security Level

Provisioning or higher



Note Optical transmit and receive levels should be in their acceptable range as shown in the specifications section for each card in Table 2-5 on page 2-32.



Note In a point-to-point configuration, two STM-N cards are connected to two STM-N cards on a second node. You can use Slots 1 to 4 and 14 to 17 (STM-1, STM1-8, STM-4, STM4-4, and STM-16 cards only) or Slot 5 to 6 and 12 to 13 (any STM-N card except the STM4-4) if connections between nodes are consistent. For example, Slot 5 on the first point-to-point node connects to Slot 5 on the second point-to-point node for the working path, and Slot 6 connects to Slot 6 for the protect path. The working STM-N ports have data communications channel (DCC) terminations, and the STM-N cards are in a 1+1 protection group.



Step 1 Complete the "DLP-D60 Log into CTC" task on page 3-23 at either of the point-to-point nodes. If you are already logged in, continue with Step 2.

Step 2 Complete the "DLP-D298 Check the Network for Alarms and Conditions" task.

Step 3 Log into the node that will be added to the point-to-point configuration.

Step 4 Complete the "NTP-D24 Verify Card Installation" procedure on page 4-2 to ensure that the new node has two STM-N cards with the same rate as the point-to-point nodes.

Step 5 Complete the "NTP-D35 Verify Node Turn Up" procedure on page 6-2 for the new node.

Step 6 Physically connect the fibers between the point-to-point node and the new node.

Step 7 On the new node, create a 1+1 protection group for the STM-N cards that will connect to the point-to-point node. See the "DLP-D73 Create a 1+1 Protection Group" task on page 4-28.

Step 8 Complete the "DLP-D253 Provision SDH DCC Terminations" task on page 6-5 for the working STM-N cards in the new node that will connect to the linear ADM network. Make sure to set the Port State in the Create SDCC Termination dialog box to IS.


Note DCC failure alarms appear until you create DCC terminations in the point-to-point node.


Step 9 Display the point-to-point node that will connect to the new node in CTC node view.

Step 10 Ensure that the point-to-point node has STM-N cards installed that can connect to the new node.

Step 11 Create a 1+1 protection group for the STM-N cards that will connect to the new node. See the "DLP-D73 Create a 1+1 Protection Group" task on page 4-28 for instructions.

Step 12 Create DCC terminations on the working STM-N card that will connect to the new node. See the "DLP-D253 Provision SDH DCC Terminations" task on page 6-5. In the Create SDCC Termination dialog box, set the port state to IS.

Step 13 Display the new node in node view.

Step 14 Complete the "NTP-D28 Set Up Timing" procedure on page 4-20 for the new node. If the new node is using line timing, set the working STM-N card as the timing source.

Step 15 Display the network view to verify that the newly created linear ADM configuration is correct. Two green span lines should appear between each linear node.

Step 16 Click the Alarms tab. Verify that no unexpected alarms are displayed.

Step 17 Repeat the procedure to add an additional node to the linear ADM.

Stop. You have completed this procedure.


DLP-D298 Check the Network for Alarms and Conditions

Purpose

This task verifies that no alarms or conditions exist on the network.

Tools/Equipment

None

Prerequisite Procedures

DLP-D60 Log into CTC, page 3-23

Required/As Needed

As needed

Onsite/Remote

Remote

Security Level

Retrieve or higher



Step 1 From the View menu, choose Go to Network View. Verify that all affected spans on the network map are green.

Step 2 Verify that the affected spans do not have active switches on the network map. Span ring switches are graphically displayed on the span with the letters "L" for lockout ring, "F" for Force ring, "M" for Manual ring, and "E" for Exercise ring.

Step 3 A second verification method can be performed from the Conditions tab. Click Retrieve Conditions and verify that no switches are active. Make sure the Filter button is not selected.

Step 4 Click the Alarms tab. Verify that no critical or major alarms are present, nor any facility alarms, such as LOS, LOF, AIS-L, AIS-P, SF, and SD. Make sure the Filter button is not selected.

If trouble is indicated (for example, a major alarm exists), resolve the problem before proceeding. See Chapter 9, "Manage Alarms," or, if necessary, refer to the Cisco ONS 15454 SDH Troubleshooting Guide.

Step 5 Return to your originating procedure (NTP).


NTP-D155 Convert a Point-to-Point or a Linear ADM to a Two-Fiber MS-SPRing

Purpose

This procedure upgrades a point-to-point configuration (two nodes) or a linear ADM configuration (three or more nodes) to a two-fiber multiplex section-shared protection ring (MS-SPRing).

Tools/Equipment

None

Prerequisite Procedures

NTP-D124 Provision a Point-to-Point Network, page 6-4 or

NTP-D38 Provision a Linear ADM Network, page 6-12

Required/As Needed

As needed

Onsite/Remote

Onsite

Security Level

Provisioning or higher



Caution This procedure is service affecting.


Note Optical transmit and receive levels should be in their acceptable range as shown in the specifications section for each card in the Cisco ONS 15454 SDH Reference Manual.



Step 1 Log into one of the nodes that you want to convert from a point-to-point or ADM to an MS-SPRing. See the "DLP-D60 Log into CTC" task on page 3-23 for instructions. If you are already logged in, continue with Step 2.

Step 2 Check for alarms and conditions. See the "DLP-D298 Check the Network for Alarms and Conditions" task for instructions.

Step 3 Right-click a span adjacent to the node you are logged into.

Step 4 From the shortcut menu, click Circuits. The Circuits on Span window appears.

Step 5 Verify that the total number of active VC4 circuits does not exceed 50 percent of the span bandwidth. In the Circuits column, there is a block titled "Unused." This number should exceed 50 percent of the span bandwidth.


Note If the span is an STM-16, no more than 8 VC4s can be provisioned on the span. If the span is an STM-64, no more than 32 VC4s can be provisioned on the span. If the span is an STM-4, no more than 2 VC4s can be provisioned on the span.



Caution If the first half of the capacity is exceeded, this procedure cannot be completed. Bandwidth must be 50 percent unassigned to convert to MS-SPRing. Refer to local procedures for relocating circuits if these requirements are not met.

Step 6 Repeat Step 3 through Step 5 for each node in the point-to-point or linear ADM that you will convert to MS-SPRing. If all nodes comply with Step 5, proceed to Step 7.

Step 7 Complete the "DLP-D189 Verify that a 1+1 Working Slot is Active" task for every 1+1 protection group that supports a span in the point-to-point or linear ADM network.

Step 8 Complete the "DLP-D155 Delete a Protection Group" task on page 12-20 at each node that supports the point-to-point or linear ADM span.

Step 9 Complete the "DLP-D214 Change the Service State for a Port" task on page 6-5 to put the protect ports out of service at each node that supports the point-to-point or linear ADM span.

Step 10 (Linear ADM only) Physically remove the protect fibers from all nodes in the linear ADM; for example, the fiber running from Node 2/Slot 13 to Node 3/Slot 13 can be removed (Figure 15-1).

Step 11 Create the ring by connecting the protect fiber from one end node to the protect port on the other end node. For example, the fiber between Node 1/Slot 5 and Node 2/Slot 5 can be rerouted to connect Node 1/Slot 5 to Node 3/Slot 13 (Figure 15-1).


Note If you need to physically remove any STM-N cards, do so now. In this example, cards in Node 2/Slots 5 and 13 can be removed. See the "NTP-D227 Remove and Replace a Card" procedure on page 2-28.


Figure 15-1 Linear ADM to MS-SPRing Conversion

Step 12 From the network view, click the Circuits tabs and complete the "DLP-D139 Export CTC Data" task on page 9-4 to save the circuit data to a file on your hard drive.

Step 13 Complete the "DLP-D253 Provision SDH DCC Terminations" task on page 6-5 at the end nodes; provision the slot in each node that is not already in the SDCC Terminations list (in the Figure 15-1 example, Port 1 of Node 1/Slot 5 and Port 1 of Node 3/Slot 13).

Step 14 For circuits provisioned on a VC4 that is now part of the protection bandwidth (VC4s 3 to 4 for an STM-4 MS-SPRing, VC4s 9 to 16 for an STM-16 MS-SPRing, and VC4s 33 to 64 for an STM-64), delete and recreate each circuit:


Caution Deleting circuits is service affecting.

a. Complete the "NTP-D152 Delete Circuits" procedure on page 11-16 for one circuit.

b. Create the circuit on VC4s 1 to 2 for an STM-4 MS-SPRing, 1 to 8 for an STM-16 MS-SPRing, or 1 to 32 for an STM-64 MS-SPRing on the fiber that served as the protect fiber in the linear ADM. See the "NTP-D189 Create a Manually Routed High-Order Circuit" procedure on page 8-50 for instructions.

c. Repeat Steps a and b for each circuit residing on an MS-SPRing protect VC4.

Step 15 Complete the "NTP-D126 Create an MS-SPRing" procedure on page 6-17 to put the nodes into an MS-SPRing.

Stop. You have completed this procedure.


DLP-D189 Verify that a 1+1 Working Slot is Active

Purpose

This task verifies that a working slot in a 1+1 protection scheme is active (and that the protect slot is in standby).

Tools/Equipment

None

Prerequisite Procedures

DLP-D60 Log into CTC, page 3-23

Required/As Needed

As needed

Onsite/Remote

Both

Security Level

Maintenance or higher



Step 1 In the node view, click the Maintenance > Protection tabs.

Step 2 In the Selected Group pane, verify that the working slot/port is shown as Working/Active. If so, this task is complete.

Step 3 If the working slot says Working/Standby, manually switch traffic to the working slot:

a. In the Selected Group pane, choose the Protect/Active slot.

b. In the Switch Commands field, choose Manual.

c. Click Yes in the confirmation dialog box.

Step 4 Verify that the working slot is carrying traffic (Working/Active).


Note If the slot is not active, look for conditions or alarms that might be preventing the card from carrying working traffic. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide.


Step 5 When the working slot is carrying traffic, clear the Manual switch:

a. In the Switch Commands field, choose Clear.

b. Click Yes in the confirmation dialog box.

Step 6 Verify that the working slot does not switch back to Standby, which might indicate a problem on the working span.

Step 7 Return to your originating procedure (NTP).


NTP-D156 Convert a Point-to-Point or Linear ADM to an SNCP

Purpose

This procedure upgrades a point-to-point system or linear ADM configuration to a subnetwork connection protection (SNCP).

Tools/Equipment

None

Prerequisite Procedures

NTP-D124 Provision a Point-to-Point Network, page 6-4 or

NTP-D38 Provision a Linear ADM Network, page 6-12

Required/As Needed

As needed

Onsite/Remote

Onsite

Security Level

Provisioning or higher



Caution This procedure is service affecting. All circuits are deleted and reprovisioned.


Step 1 Complete the "DLP-D60 Log into CTC" task on page 3-23 at a node on the point-to-point or linear ADM. If you are already logged in, continue with Step 2.

Step 2 Complete the "DLP-D298 Check the Network for Alarms and Conditions" task.

Step 3 Complete the "DLP-D189 Verify that a 1+1 Working Slot is Active" task for each node.

Step 4 Complete the "DLP-D155 Delete a Protection Group" task on page 12-20 for each 1+1 protection group that supports the point-to-point or linear ADM span.

Step 5 Complete the "DLP-D253 Provision SDH DCC Terminations" task on page 6-5 at the protect cards in all nodes.

Step 6 Complete the "NTP-D152 Delete Circuits" procedure on page 11-16 and the "NTP-D188 Create an Automatically Routed High-Order Circuit" procedure on page 8-47 to delete and recreate the circuits one at a time.


Caution Deleting circuits is service affecting.

Stop. You have completed this procedure.


NTP-D210 Convert an SNCP to a Two-Fiber MS-SPRing

Purpose

This procedure converts an SNCP to an MS-SPRing.

Tools/Equipment

None

Prerequisite Procedures

NTP-D44 Provision SNCP Nodes, page 6-32

Required/As Needed

As needed

Onsite/Remote

Both

Security Level

Provisioning or higher



Caution This procedure is service affecting. All circuits on the ring are deleted and reprovisioned.


Caution Read through this procedure completely before beginning the conversion.


Note Prior to beginning this procedure, you should have a unique ring ID number to identify the new MS-SPRing and a unique node ID number for each node on the ring.



Note Prior to beginning this procedure, optical transmit and receive levels should be in their acceptable range as shown in the specifications section for each card in the Cisco ONS 15454 SDH Reference Manual.



Step 1 Log into an ONS 15454 SDH on the network where you will begin the ring conversion. See the "DLP-D60 Log into CTC" task on page 3-23. If you are already logged in, continue with Step 2.

Step 2 Complete the "DLP-D298 Check the Network for Alarms and Conditions" task.

Step 3 From the View menu choose Go to Network View.

Step 4 Right-click a span adjacent to the node you are logged into.

Step 5 From the shortcut menu, click Circuits. The Circuits on Span window appears.

Step 6 Verify that the total number of active VC4 circuits does not exceed 50 percent of the span bandwidth. In the Circuits column, there is a block titled "Unused." This number should exceed 50 percent of the span bandwidth.


Note If the span is an STM-16, no more than 8 VC4s can be provisioned on the span. If the span is an STM-64, no more than 32 VC4s can be provisioned on the span. If the span is an STM-4, no more than 2 VC4s can be provisioned on the span.



Caution If the first half of the capacity is exceeded, this procedure cannot be completed. Bandwidth must be 50 percent unassigned to convert to MS-SPRing. Refer to local procedures for relocating circuits if these requirements are not met.

Step 7 Repeat Steps 1 to 6 for each node in the SNCP that you will convert to MS-SPRing. If all nodes comply with Step 6, proceed to Step 8.

Step 8 Save all circuit information:

a. In network view, click the Provisioning > Circuits tabs.

b. Record the circuit information using one of the following options:

From the File menu, click Print to print the circuits table.

From the File menu, click Export and choose the data format: HTML, CSV (comma separated values), or TSV (tab separated values). Click OK and save the file in a temporary directory.

Complete the "NTP-D195 Document Existing Provisioning" procedure on page 9-2.

Step 9 Delete the circuits:


Note This method uses the network view. To delete circuits one at a time from each node, see the "NTP-D152 Delete Circuits" procedure on page 11-16.


a. From network view, click the Circuits tab. All circuits on the ring appear.

b. With the Shift key pressed, click each circuit in the display. Each line in the display turns dark blue as it is selected.

c. After all circuits have been selected, click Delete. Allow several minutes for processing; the actual length of time depends on the number of circuits in the network.

Step 10 Complete the "NTP-D126 Create an MS-SPRing" procedure on page 6-17 to create the MS-SPRing.

Step 11 Complete the "NTP-D175 Two-Fiber MS-SPRing Acceptance Test" procedure on page 6-19.

Step 12 To recreate the circuits, see Chapter 8, "Create Circuits and Low-Order Tunnels" and choose the applicable procedure for the circuit type you want to enter.

Stop. You have completed this procedure.


NTP-D211 Convert a Two-Fiber MS-SPRing to a Four-Fiber MS-SPRing

Purpose

This procedure upgrades a two-fiber MS-SPRing to a four-fiber MS-SPRing. The conversion will be easier if the same east and west configuration is used on all nodes being upgraded.

Tools/Equipment

None

Prerequisite Procedures

NTP-D126 Create an MS-SPRing, page 6-17

Required/As Needed

As needed

Onsite/Remote

Onsite

Security Level

Provisioning or higher



Note Two-fiber STM-16 or STM-64 MS-SPRings can be converted to four-fiber MS-SPRings. To convert, you install two additional STM-16 or STM-64 cards at each two-fiber MS-SPRing node, then log into CTC and convert the MS-SPRing from two-fiber to four-fiber. The fibers that were divided into working and protect bandwidths for the two-fiber MS-SPRing are now fully allocated for working MS-SPRing traffic. A span upgrade can be performed prior to the two-fiber to four-fiber MS-SPRing conversion.



Note MS-SPRing protection channel access (PCA) circuits, if present, will remain in their existing VC4s. Therefore, they will be located on the working path of the four-fiber MS-SPRing and will have full MS-SPRing protection. To route PCA circuits on protection channels in the four-fiber MS-SPRing, delete and recreate the circuits after the upgrade. For example, if you upgrade a two-fiber STM-16 MS-SPRing to four-fiber, PCA circuits on the protection VC4s (VCs 8 to 16) in the two-fiber MS-SPRing will remain in their existing VC4s, which are working VC4s in the four-fiber MS-SPRing. Deleting and recreating the STM-16 PCA circuits moves the circuits to VC4s 1 to 7 in the protect bandwidth of the four-fiber MS-SPRing. To delete circuits, see the "NTP-D152 Delete Circuits" procedure on page 11-16. To create circuits, see Chapter 8, "Create Circuits and Low-Order Tunnels."



Note Prior to beginning this procedure, optical transmit and receive levels should be in their acceptable range as shown in the specifications section for each card in the Cisco ONS 15454 SDH Reference Manual.



Step 1 Complete the "DLP-D60 Log into CTC" task on page 3-23 to log into one of the two-fiber nodes that you want to convert.

Step 2 Complete the "DLP-D298 Check the Network for Alarms and Conditions" task.

Step 3 Install two STM-16 or STM-64 cards at each MS-SPRing node. You must install the same STM-N card rate as the two-fiber MS-SPRing. See "NTP-D16 Install the STM-N Cards" procedure on page 2-12 for installation procedures.

Step 4 Connect the fiber to the new cards. Use the same east-west connection scheme that was used to create the two-fiber connections.

Step 5 Complete the "DLP-D214 Change the Service State for a Port" task on page 6-5 to put the ports in service on each new STM-N card.

Step 6 Test the new fiber connections using procedures standard for your site.

Step 7 Convert the MS-SPRing:

a. Display the network view and click the Provisioning > MS-SPRing tabs.

b. Choose the two-fiber MS-SPRing you want to convert, then click the Upgrade to 4 Fiber button.

c. In the Upgrade MS-SPRing dialog box, set the amount of time that will pass before the traffic reverts to the original working path after the condition that caused the switch has been resolved. The default is 5 minutes.

d. Click Next.

e. Assign the east and west protection ports:

West Protect—Select the west MS-SPRing port that will connect to the west protect fiber from the drop-down menu.

East Protect—Select the east MS-SPRing port that will connect to the east protect fiber from the drop-down menu.

f. Click Finish.

Step 8 Click the Alarms tab. Make sure the Filter button is not selected. Verify that no critical or major alarms are present, nor any facility alarms, such as LOS, LOF, AIS-L, SF, and SD. If an alarm is present, resolve the problem before proceeding to the next step. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide for more information about alarms.

Step 9 Test the four-fiber MS-SPRing. See the "NTP-D176 Four-Fiber MS-SPRing Acceptance Test" procedure on page 6-26.

Stop. You have completed this procedure.


NTP-D159 Modify an MS-SPRing

Purpose

This procedure changes an MS-SPRing ring ID, node ID, or ring and span reversion times.

Tools/Equipment

None

Prerequisite Procedures

NTP-D126 Create an MS-SPRing, page 6-17

Required/As Needed

As needed

Onsite/Remote

Onsite or remote

Security Level

Provisioning or higher



Step 1 Complete the "DLP-D60 Log into CTC" task on page 3-23 at a node in the MS-SPRing that you want to modify. If you are already logged in, continue with Step 2.

Step 2 Check the MS-SPRing for outstanding alarms and conditions. See the "DLP-D298 Check the Network for Alarms and Conditions" task for instructions.


Note Some or all of the following alarms display during MS-SPRing setup: E-W MISMATCH, RING MISMATCH, APSCIMP, APSDFLTK, and MSSP-OSYNC. The alarms clear after you configure all the nodes in the MS-SPRing. For definitions of these alarms, see the Cisco ONS 15454 SDH Troubleshooting Guide.


Step 3 To change the MS-SPRing ring ID or the ring or span reversion times, complete the following steps. If you want to change a node ID, continue with Step 4.

a. Switch to network view and click the Provisioning > MS-SPRing tabs.

b. Click the MS-SPRing you want to modify and click Edit.

c. In the MS-SPRing window, change any of the following:

Ring ID—If needed, change the MS-SPRing ring ID (a number between 0 and 9999). Do not choose a number that is already assigned to another MS-SPRing.

Reversion time—If needed, change the amount of time that will pass before the traffic reverts to the original working path after a ring switch.

Span Reversion—(Four-fiber MS-SPRings only) If needed, change the amount of time that will pass before the traffic reverts to the original working path after a span switch.

d. Click Apply.

If you changed the ring ID, the MS-SPRing window closes automatically. If you only changed a reversion time, close the window by choosing Close from the File menu.

Step 4 To change an MS-SPRing node ID, complete the "DLP-D24 Change an MS-SPRing Node ID" task; otherwise, proceed to Step 5.

Step 5 In network view, verify the following:

A green span line appears between all MS-SPRing nodes.

All E-W MISMATCH, RING MISMATCH, APSCIMP, DFLTK, MSSP-OSYNC, and Node ID Mismatch alarms are cleared.


Note For definitions of these alarms, see the Cisco ONS 15454 SDH Troubleshooting Guide.


Stop. You have completed this procedure.


DLP-D24 Change an MS-SPRing Node ID

Purpose

This task changes an MS-SPRing node ID.

Tools/Equipment

None

Prerequisite Procedures

DLP-D60 Log into CTC, page 3-23

Required/As Needed

As needed

Onsite/Remote

Onsite or remote

Security Level

Provisioning or higher



Step 1 From the View menu choose Go to Network View.

Step 2 On the network map, double-click the node with the node ID you want to change.

Step 3 Click the Provisioning > MS-SPRing tabs.

Step 4 Choose a Node ID number. Do not choose a number already assigned to another node in the same MS-SPRing.

Step 5 Click Apply.

Step 6 Return to your originating procedure (NTP).


NTP-D235 Manage MS-SPRing Manual Ring Switches

Purpose

Use this procedure to initiate or clear an MS-SPRing Manual Ring switch.

Tools/Equipment

None

Prerequisite Procedures

NTP-D126 Create an MS-SPRing, page 6-17

Required/As Needed

As needed

Onsite/Remote

Onsite or remote

Security Level

Provisioning or higher



Caution Traffic is not protected during a Manual ring protection switch.


Step 1 Complete the "DLP-D60 Log into CTC" task on page 3-23 at the node where you want to initiate the Manual Ring switch. If you are already logged in, continue with Step 2.

Step 2 Complete the "DLP-D301 Initiate an MS-SPRing Manual Ring Switch" task as necessary.

Step 3 Complete the "DLP-D241 Clear an MS-SPRing Manual Ring Switch" task as necessary.

Stop. You have completed this procedure.


DLP-D301 Initiate an MS-SPRing Manual Ring Switch

Purpose

Use this task to perform an MS-SPRing Manual ring switch.

Tools/Equipment

None

Prerequisite Procedures

DLP-D60 Log into CTC, page 3-23

Required/As Needed

As needed

Onsite/Remote

Onsite

Security Level

Provisioning or higher



Caution Traffic is not protected during a Manual protection switch.


Step 1 From the View menu choose Go to Network View.

Step 2 Click the Provisioning > MS-SPRing tabs.

Step 3 Choose the MS-SPRing and click Edit.


Tip To move an icon to a new location, for example, to see MS-SPRing channel (port) information more clearly, click an icon on the Edit MS-SPRing network graphic and while pressing Ctrl, drag the icon to a new location.


Step 4 Right-click any MS-SPRing node channel (port) and choose Set West Protection Operation (if you chose a west channel) or Set East Protection Operation (if you chose an east channel).


Note For two-fiber MS-SPRings, the squares on the node icons represent the MS-SPRing working and protect channels. You can right-click either channel. For four-fiber MS-SPRings, the squares represent ports. Right-click either working port.


Step 5 In the Set West Protection Operation dialog box or the Set East Protection Operation dialog box, choose MANUAL RING from the drop-down menu. Click OK.

Step 6 Click Yes in the two Confirm MS-SPRing Operation dialog boxes.

Step 7 Verify that the channel (port) displays the letter "M" for Manual ring. Also verify that the span lines between the nodes where the Manual switch was invoked turn purple, and that the span lines between all other nodes turn green. This confirms the Manual switch.

Step 8 From the File menu, choose Close.

Step 9 Return to your originating procedure (NTP).


DLP-D241 Clear an MS-SPRing Manual Ring Switch

Purpose

Use this task to clear a Manual ring switch.

Tools/Equipment

None

Prerequisite Procedures

DLP-D60 Log into CTC, page 3-23

Required/As Needed

As needed

Onsite/Remote

Onsite

Security Level

Provisioning or higher



Caution Traffic is not protected during a Manual ring switch.

Step 1 Display the network view.

Step 2 Click the Provisioning > MS-SPRing tabs.

Step 3 Choose the MS-SPRing and click Edit.


Tip To move an icon to a new location, for example, to see MS-SPRing channel (port) information more clearly, click an icon on the Edit MS-SPRing network graphic and while pressing Ctrl, drag the icon to a new location.


Step 4 Right-click the MS-SPRing node channel (port) where the Manual ring switch was applied and choose Set West Protection Operation or Set East Protection Operation, as applicable.

Step 5 In the dialog box, choose CLEAR from the drop-down menu. Click OK.

Step 6 Click Yes in the Confirm MS-SPRing Operation dialog box. The letter "M" is removed from the channel (port) and the span turns green.

Step 7 From the File menu, choose Close.

Step 8 Return to your originating procedure (NTP).