Procedure 9-2.2: Add new Alcatel-Lucent 1665 DMX node to BLSR

Important!

This is not a standalone procedure. Perform this procedure only as directed by Procedure 9-2: Add new Alcatel-Lucent 1665 DMX node to network.

Steps

Important!

This procedure assumes that the new Alcatel-Lucent 1665 DMX shelf has been equipped with the required circuit packs, software has been installed, and the shelf has passed the looped transmission tests. If not, refer to Chapter 5, Node turnup procedures.

A new Alcatel-Lucent 1665 DMX node may be added to a bidirectional line switched ring (BLSR) using the following:

A BLSR supports up to 16 nodes.

Complete the following steps to add a new Alcatel-Lucent 1665 DMX node to an OC-48/192 BLSR.

 
1

From the System View menu at a node in the OC-48/192 BLSR,

  1. Select View → Protection.

  2. Select the required 2F BLSR protection group and click Select.

  3. Click on the Provisionable Parameters tab and observe the provisioned value of the Automatic Ring Discovery parameter. Determine whether Automatic Ring Discovery is enabled or disabled and click Close.


2

Important!

For BLSR applications, the port Application parameter must be provisioned 2F BLSR.

Up to 15 BLSR protection groups may be supported by a single network element when the Main slots are equipped with Very Large Fabric LNW59, LNW82, or LNW504 OLIU circuit packs.

From the System View menu at the new node, select Configuration → Equipment to access the required ports and provision the port parameters according to the work instructions.

Result:

The system reports a default K-bytes alarm.

Reference:

Procedure 4-4: Provision OLIU circuit packs/ports for service


3

Select View → Equipment to access the required ports and verify that the ports were provisioned correctly.


4

From the system view at the new node,

  1. Select Configuration → Equipment.

  2. Select the Ring ID tab and expand the required ring by clicking on the plus sign (+).

  3. Select the required 2F BLSR protection group and click Select.

  4. Provision the required protection group parameters according to the work instructions, then click Apply to make the changes.

  5. Click Close.


5

From the System View menu at the new node,

  1. Select View → Protection.

  2. Select the required 2F BLSR protection group and click Select.

  3. Click on the Provisionable Parameters tab and verify that the protection group parameters were provisioned correctly. Then click Close.


6

Important!

The LAPD Role parameter must be provisioned differently at each end of an optical span. For example, if the LAPD Role parameter is provisioned to user-side at one end of an optical span, then the LAPD Role parameter must be provisioned network-side at the other end of the optical span.

From the System View menu at the new node,

  1. Select Configuration → DCC Terminations.

  2. Select the required DCC Port dcc-m1-1 or dcc-{a,b,c,d,g}1-{n}, and provision the DCC terminations according to the work instructions.

  3. Click Apply to make changes.

  4. Select the required DCC Port dcc-m2-1 or dcc-{a,b,c,d,g}2-{n}, and provision the DCC terminations according to the work instructions.

  5. Click Apply to make changes.

  6. Click Close.

Result:

The system reports inconsistent DCC values and section DCC channel failed alarms. These alarms clear when the new node is connected to BLSR.

Reference:

Procedure 6-4: Provision DCC terminations


7

From the System View menu at the new node, select View → DCC Terminations, verify that the DCC terminations were provisioned correctly and click Close.


8

If the new node is added to the BLSR using the Main OLIU circuit packs, determine from either the Network Operations Center (NOC) or the work instructions the synchronization for the new node. If required, select Configuration → Timing/Sync and provision the synchronization parameters according to the work instructions or office records.

Reference:

Procedure 6-5: Network Element synchronization provisioning


9

Determine from either the Network Operations Center (NOC) or the work instructions all the other nodes in the existing ring. Verify through the NOC all existing cross-connections that exist on the adjacent nodes to where the new node will be located. Also, note the source or destination, cross-connection type (for example, 2F BLSR add/drop, 1-way), and cross-connection rate (for example, STS1, STS3c). These will be pass-through cross-connections at the new node.

Important!

It may be helpful to make a sketch of the network to visualize the required pass-through cross-connections at the new node.

To verify the cross-connections, at the adjacent West node select View → Cross-Connections. On the left side of the screen, select the required circuit pack and click Select. Record the Src (source tributary AID), Src NE Name (source network element name) Type, Rate, Dest (destination tributary AID), Dest NE Name (destination network element name), and CKT ID (circuit ID) of the cross-connections that result in traffic directly to and/or from the other adjacent node. These will be pass-through cross-connections at the new node.


10

If...

Then...

automatic ring discovery (Release 3.0 and later releases) is enabled at the new node,

At the new node, select View → Protection to access the required 2F BLSR protection group and verify that the Auto Squelch Map parameter is Auto.

If required, select Configuration → Equipment to access the required 2F BLSR protection group and provision the Auto Squelch Map to Auto.

Continue with the next step.

manual ring discovery (Release 2.1) is enabled at the new node,

Important!

The manual ring map must be updated manually at each node in the ring.

Perform the following:

  1. At the new node, edit and activate the manual ring map.

  2. At the existing nodes, edit the manual ring map to add the new node, but do NOT activate the updated manual ring maps.

  3. Continue with the next step.

Procedure 9-4: Provision manual ring map


11
DANGER 

NOTICE

Service-disruption hazard

If VT1.5/STS-N pass-through cross-connections are not provisioned at the new node, service interruptions can occur.

Pass-through cross-connections must be provisioned to support existing traffic on the ring through the new node.

At the new node, enter the required VT1.5/STS-N pass-through cross-connections (based on the cross-connection information retrieved in Step 9) by selecting Configuration → Cross-Connections → Create a New Cross-Connection.


12

At each node in the BLSR, verify that no BLSR protection switches are present, select View → Rolling Events. Under the line reading RTRV-COND-ALL determine if any protection switches are displayed.

Remove all BLSR protection switches before continuing with this procedure.

Reference:

Alcatel-Lucent 1850 Transport Service Switch (TSS-5) Alarm Messages and Trouble Clearing Guide, 365-372-402


13

Important!

The Force to Protection, Ring switch may cause transmission hits (less than 60 ms).

Perform the following: (Refer to the following figure.)

  • At the West Node, from the System View menu select Fault → Protection Switch. Select the required 2F BLSR protection group (according to the work instructions) and perform a protection switch in the East direction with switch type Force to Protection, Ring. Click Apply. A dialog box appears asking you to confirm executing this command. Click Yes. After the protection switch completes, click Close.

  • At the East Node, from the System View menu select Fault → Protection Switch. Select the required 2F BLSR protection group (according to the work instructions) and perform a protection switch in the West direction with switch type Force to Protection, Ring. Click Apply. A dialog box appears asking you to confirm executing this command. Click Yes. After the protection switch completes, click Close.

View the figure

Legend:

Line 1W: Line 1W (West port) is the port in slot 1 of the 2F BLSR protection group (for example, Main-1 or FN-A-1).

Line 1E: Line 1E (East port) is the port in slot 2 of the 2F BLSR protection group (for example, Main-2 or FN-A-2).


14
DANGER 

NOTICE

Service-disruption hazard

Removal of wrong fiber connections will result in a service interruption.

Ensure that you remove only the fiber connections for the optical span being discontinued.

Perform the following: (Refer to the following figure.)

  • At the West Node, disconnect the optical fibers connected to the East Node.

  • At the East Node, disconnect the optical fibers connected to the West Node.

View the figure

Legend:

Line 1W: Line 1W (West port) is the port in slot 1 of the 2F BLSR protection group (for example, Main-1 or FN-A-1).

Line 1E: Line 1E (East port) is the port in slot 2 of the 2F BLSR protection group (for example, Main-2 or FN-A-2).


15

Perform the following: (Refer to the following figure.)

  • At the West, New, and East nodes, connect all transmit fibers.

  • At the West, New, and East nodes, measure the optical power level in the receive direction and attenuate if necessary.

  • At the West, New, and East nodes, connect all receive fiber.

Refer to Procedure 14-4: Perform connection and verification of optical facility.

View the figure

Legend:

Line 1W: Line 1W (West port) is the port in slot 1 of the 2F BLSR protection group (for example, Main-1 or FN-A-1).

Line 1E: Line 1E (East port) is the port in slot 2 of the 2F BLSR protection group (for example, Main-2 or FN-A-2).


16

Important!

As the ring is connected, nodes automatically communicate with each other using the data communications channel (DCC) and build a ring map. If successful, automatic ring discovery builds a ring map at each node and the Ring Discovery in Progress condition clears. If unsuccessful, the ring map is not complete and alarms are reported.

If automatic ring discovery is enabled, wait until the Ring Discovery in Progress condition clears.

If other alarms/conditions are reported, refer to the Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302 and clear the alarms/conditions.


17

From the System View menu at the new node, select Administration → OSI Neighbor Map and verify that the new node is connected to the required adjacent nodes.

Important!

If the report indicates wrong (or no) fiber connections and DCC-related alarms are reported, select View → DCC Terminations to obtain the View DCC Termination report and verify that the DCC terminations are provisioned correctly. If required, check fiber integrity and verify the node NSAP address is correct using the Administration → View NE Administration command.


18

If required at the new node, select View → Timing/Sync and verify the operational synchronization mode of the new node.

If the Timing Mode is holdover, check that the incoming timing references are connected. Also check Mode Switching (NA, revertive, or nonrevertive). If timing inputs are used, click the Timing Input Ports tab and check the Input and Output Format.


19

If Automatic Ring Discovery is disabled (that is, manual ring discovery), activate the manual ring maps at the existing nodes in the network. Otherwise, continue with the next step.

Select Configuration → Activate Manual Ring Map. Select the required Ring ID and click Select.

Result:

A dialog box appears asking you to confirm activating the manual ring map. Click OK. The inactive manual ring map is now activated.


20

If the work instructions specify that the Auto Squelch Map parameter should be Manual at the new node, select Configuration → Equipment to access the required 2F BLSR protection group and provision the Auto Squelch Map parameter to Manual.


21

Perform the following:

  • At the West Node, from the System View menu select Fault → Protection Switch. Select the required 2F BLSR protection group and clear the protection switch in the East direction with switch type Clear. Click Apply. A dialog box appears asking you to confirm executing this command. Click Yes. After the protection switch clears, click Close.

  • At the East Node, from the System View menu select Fault → Protection Switch. Select the required 2F BLSR protection group and clear the protection switch in the West direction with switch type Clear. Click Apply. A dialog box appears asking you to confirm executing this command. Click Yes. After the protection switch clears, click Close.

Important!

The Clear switch may cause transmission hits (less than 60 ms). Wait for alarms to clear.


22

From the System View menu at the East and West nodes,

  1. Select View → Protection.

  2. Select the required 2F BLSR protection group and click Select.

  3. Observe the Ring Node APS (Automatic Protection Switch) State, East Switch Request State, West Switch Request State, East Channel State, and West Channel State parameters. Verify that the protection switches have cleared and click Close.


23

At the new node and the adjacent nodes, click the Alarm List button and verify that no alarms are present. If required, clear any alarms that are present.

Reference:

Alcatel-Lucent 1665 Data Multiplexer (DMX) Alarm Messages and Trouble Clearing Guide, 365-372-302


24

Important!

Establishing service requires that the proper slots in each terminating node be properly equipped with the correct circuit pack(s) for the type of service being established. It also requires numerous cross-connections in each of the nodes representing the path of the required service. Additionally, transmission tests should be performed to verify the continuity and quality of the established circuit.

The new node is now ready for initial service to be established.

Reference:


End of steps

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