Create CEM service

Perform the following steps to create an end to end ELine CEM service:

1. Go to Configuration > Layer 2 > Services menu and click Complete Services option. The Complete Services page is displayed.
2. Click on . A series of new windows will be displayed for step-by step creation of a service.

• Step 1: General Attributes
  1. Enter a name for the service.
  2. Select the Technologies as 'MPLS-TP', Service Type as 'ELINE' and the Domain as 'Qos Domain'.
  3. Select Circuit Emulation check box. On selecting, Configure CESIWF is added to steps of service creation on left panel of the General Attributes window. The parameters 'Capacity' and 'CESIWF Count' will be displayed to enter the options.
  4. Do one of the following:

     > To disable OAM on the service, select OAM as 'None' from drop down menu.

     > To enable OAM on the service, select OAM as 'BFD Config'. Select the BFD Configuration parameters displayed.

     > To enable PWSM on the service, select OAM as 'Pw Status'.Select the Pw Status Configuration parameters displayed.

  5. Select Enable PSC check box to enable Protection State Coordination, if desired. Enter rest other details and click Next.

     

Refer General Attributes parameters table in the topic Create MPLS-TP service for description of parameters on General Attributes page.

• Step 2: Adding End Points
  1. Click Add on End Points page to choose the end point and the UNI port for the service.
  2. Under Network element column, select the desired node as an endpoint.

     There are two ways of searching the desired node from the list as follows:

     > Enter the IP address/user label of the NE in the text box provided and click (Search Node by IP Address or UserLabel). Or,

     > Click (Add switches using map view) and select desired NEs from the Topology selection window launched. Click Done.

  3. The ports are displayed for the selected switch, add UNI by selecting the desired port. In case of TJ1600 select the LAG interface; for TJ1400 select the CEM Ethernet logical port [for example, CEM-ETH port].
  4. Under VLAN > First Tag column, enter the VLAN value. The VLAN has to be assigned for every service. Create a VLAN database for this purpose; one VLAN per site.

     To view the used VLAN range, select the port and click Show Used VLans. View Used VLAN Range(s) window is displayed with a list of used VLAN values for the selected port.

     To view the bandwidth utilization, click View BW. View Port BW Utilization window is displayed with the bandwidth utilization details of Ingress and Egress Port.

     

  5. Click Add Uni.
  6. Similarly, repeat step a to e (of Step 2: Adding End Points) to add the second end point and uni (service must have two endpoints).

     

  7. To associate the UNI with a Capacity Distribution Profile, select a UNI port and click Manage CDP. Manage CDP Port window is displayed. Associate the port with desired profile. Click OK.
  8. Click Next. The PseudoWires page is displayed.

End Points parameters

• Step 3: PseudoWires

The PseudoWires page of Create Service provides the options to add or remove protection, selection of pseudowire path manually or automatic path detection, and MA configuration.

• To edit MA configuration parameters, select the MA Configuration tab and select or enter the required values.
• To create unprotected or protected pseudowire, un-check/check the (Protection) check box under PseudoWires. The check box will be selected by default.
• Pseudowire path selection can be done in two ways as follows:

To find path for the pseudowire automatically,

1. Enable Find Path button by selecting (Auto Path) check box and then select check box against the added end points. The check boxes will be selected by default.
2. Click Find Path. Path found successfully message is displayed.
3. Click OK and select the pseudowire endpoint (Sw1--Sw2) to see its path.

   Graphical representation of the pseudowire detected automatically is displayed under the View tab as shown in the following figure. Details of work path, protect path, excluded switches, and excluded tunnels is available under Details:

   

NOTE: When finding the pseudowire path automatically, the user is provided an option to exclude switches/tunnels. Select Excluded Switches and Excluded Tunnels tab. Click Add button and select the desired nodes and/links. Click Exclude Nodes or Exclude Links followed by Done. Remove button can be used to delete the added data. Select Find Path. Pseudowire path is calculated once again, excluding the selected switches/tunnels in the path.

To find path for the pseudowire manually,

1. Uncheck (Auto Path) check box and then select the added end points. The Manual Path button is displayed under the View tab.
2. Click Manual Path. The topology selection window is displayed.
3. There are two ways in which the pseudowire path can be added, which is explained as follows:

   (i) Direct Path Selection: This option is used for direct path selection between two end points with no intermediate nodes in between.

   Select a direct path/link between the two selected end points (highlighted in black) and click Add Work. The pseudowire path is added and the link color changes from pink to blue. To add protection (if (Protection) check box was checked), select another path/link and click Add Protect.

   

   Click Done. The graphical representation of the pseudowire added is displayed on the PseudoWires page under View tab along with work path and protect path details under Details column as shown in the following figure:

   

   (ii) Partial Link Selection: This option is used when the user has to add more than one link to create a pseudowire path between the two end points.

   Select the Partial Link Selection check box. Select the path/link and click Add link. Similarly, add the additional links between intermediate nodes connecting the two selected end points. The path/link gets highlighted in cyan color. Click the Add Work. The pseudowire path is added and the link color changes from cyan to blue. To add protection (if (Protection) check box was checked), select Partial Link Selection check box again (if desired) and select another path/link. Click Add Links > Add Protect. Click Done. In case path addition fails, the partial link selection will be reset.

   

   Graphical representation of the pseudowire added is displayed on the PseudoWires page under View tab along with work path details under Details column.

4. Click Next.

   NOTE: An additional PW Status Info page will be displayed if OAM was selected as 'Pw Status' on General Attributes page. For more information refer to Step 4: PW Status Info in the topic Create MPLS-TP service with PWSM.

• Step 4: Configure CESIWF

  

1. To add one IWF for one E1, click Add. To add in bulk click Bulk Add. The Configure CESIWF for Source and Destination page is displayed.

   

2. Default selection for Work TDM Channel and Protect TDM Channel for Source and Destination endpoint will be displayed.
3. Select the Enable CESIWF Protection check box in case of node endpoint with CEF5 card. By default, CESIWF protection is enabled on CEF4 card and the check box will be selected (not editable).

   Uncheck the option if node endpoint is having CEF1. CESIWF protection is not supported on CEF1 cards. The user can also have protected CESIWF on one endpoint and unprotected endpoint on other end point.

4. Enter the Receive and Transmit ECID for Source. By default, same value is applicable for Destination.

   To view and validate the ECID(s) for the selected port,

   (i) Click Show Used ECIDs. View Used ECID page is displayed showing the used [existing and/or planned] ECID(s) and TDM Channel(s), if any.

   

   (ii) Select the required Network Element and the corresponding Switch followed by the Port.

   (iii) Do one of the following:

   > To view used ECIDs, select the action as Show used ECIDs from the drop down menu. The used ECID values for the selected port is displayed under the right column.

   > To filter TDM channel, select the action as Filter TDM Channel from drop down menu and enter the port number in TDM Channel text box in ci-si-pn format. Click Go. A message will be displayed whether that TDM channel is free for use or not.

   > To filter ECID, select the action as Filter ECID from drop down menu and enter the ECID number in ECID Value text box. ECID must be a number in range 1 - 1048575. Click Go. A message will be displayed whether the ECID is free for use or not.

   (iv) Click Close to exit this window.

5. Click Ok. The IWF is configured as shown in the following figure. Click Add for adding another CESIWF (if desired).

   

   A parameter 'Select CESIWF for Circuit Creation' for automatic creation of logical CEM circuits is displayed while creating CEM services on TJ1400P node and CEM1 card. To enable the option click , check box will be displayed against each CESIWF pairs to select the CESIWF(s).

   

6. Click Next to view the summary of the service created.

Configure CESIWF for Source and Destination parameters

• Step 5: Summary

On Summary page of Create Service, the end points with the connecting pseudowire is displayed as shown in the following figure:

1. From the drop down menu, select Create to create the service or Create and Activate to create and activate the service as desired.
2. Click Finish. A success message is displayed. Service creation command is sent successfully.
3. Click OK. The status of the service can be checked in Complete Services page.

The service created act as CEM_Service_TL for TDM circuits.