Create P2P OTN circuits

Points to Remember

While creating an OTN Circuit, consider the following points:

If the SrcTrafficType is selected SDH, then the DestTrafficType should also be SDH.
If the SrcTrafficType is selected as Ethernet (ETH), then the DestTrafficType should also be ETH. The circuit creation is supported with ODU0 and ODU2E capacity over OTU2/OTU2E/OTU4 TL.
On creating ODU4 circuit, HO TL will be created between remote ends. The HO TL can be used for creating lower order circuits.
On discovering ODU4 circuit, HO TL will be created between remote ends. The HO TL can be used for discovering lower order circuits.
SDH to SDH and ETH to ETH OTN circuits are displayed under SDH/PDH/VCG Circuits tab.
ODU2e capacity circuit creation is also supported on OTU2e TL.
TTM support for add source/destination protection is not supported.

Perform the following steps for creation of an OTN circuit:

Go to Configuration > Layer 1 > Create Circuit menu and click P2P/MEP Circuit option. Create Circuit is displayed in a new browser window.
Under Create Circuit section, do the following steps:
1. Select the Circuit Type as 'P2P' and Sub Type as 'OTN Circuit'.
2. Depending on the circuit capacity desired to create, select the Capacity as 'ODU0/ODU1/ODU2/ODU2E/ODU1F/ODU4/ODUflex' from the drop down options.
3. Enter value for other desired parameters under this section.
Under Source Information section, do the following steps:
1. Based on the traffic source and dropping points for the circuit, select the SrcTrafficType from the drop down options.
2. Do one of the following:
  > Click the Node check box and enter the IP address of the source node in the IP text box; or
  
  > Enter name of the source node in the IP text box.
3. Select the desired port from the available options under Port field. Options are displayed only when ports of defined capacity are available on that node.
4. Click M (Select TimeSlots) link provided against TimeSlot field. OTN Channels window is displayed. Manual and Auto time slot selection, both options are available on this window.
5. Do one of the following for selecting the time slots:
  > Manually: Under CHANNELS, click the desired channel number(s) and click Add Channel. The channels(s) will be displayed under Selected CHANNELS. Click Apply.
  
  > Automatically: Click Auto button. Depending on the Capacity selected in Step 2b, the required number of channels will automatically get listed under Selected CHANNELS. Click Apply.
  
  The selected channel(s) will now be displayed in TimeSlot field on Create Circuit window.
6. If user desires to add protection to the source port, click Add source protection link and select the Port and TimeSlot as done in Step 3c to 3e.
Under Destination Information section, based on the traffic source and dropping points for the circuit, select the DestTrafficType from the drop down options. Enter value for the desired parameters. Refer to Step 3 for details.
Enter value for other desired parameters. For parameter description, the default and acceptable values supported, refer to the Attributes of Create Circuit- OTN table.
Click Start Route Selection. The window as follows is displayed:
Select the Source node and click Expand button. All outgoing TLs will get displayed under Out Going Links for <node IP> (EMS name).
Double click the desired link. The graphical view of the nodes with selected link gets displayed as shown in the figure "OTN Circuit Creation- Graphical View" follows:
Do one of the following:
- Select Create to create the circuit.
- Select Create and Activate to create and activate the circuit.
A Create Circuit: Success window is displayed. Click Manage Circuit link to view the details of the circuit created or click Close to exit the window.

Attributes of Create Circuit- OTN

Attribute	Description

Common Circuit Info
Circuit Type	Allows you to select the type of circuit by clicking on the radio button: P2P MEP
Sub Type	Select the sub circuit type as 'OTN Circuit' from the drop down menu.
Circuit name	Allows you to enter a name for the circuit. Acceptable values include characters A to Z, a to z, 0 to 9, _(underscore), -(hyphen), .(dot), &(ampersand), space.
Customer	Enter the name of the customer. The drop-down list will be displayed after entering the character in the field. If the drop-down list does not display any customer names, the user can create customer by clicking on the C link available against this field. The Create Customer page is displayed. For more information, refer to the Manage Customers section.
Capacity	Allows you to select the capacity for circuit creation. Values displayed in the drop down options depend on the Circuit Type selected by the user. ODU0 ODU1 ODU2 ODU2E ODU1F ODU4 ODUflex
Direction	The direction is always Bi (Bi-directional).
Copies	Allows you to enter the number of circuit copies desired to create. This parameter is displayed for OTN and P2P circuit type.
Higher Order	Select the check box if higher order circuit has to be created. NOTE: Single Node Higher Order circuit can be discovered in the TJ5500 by enabling the singleton support.
Enable CST	Select the check box to enable Client Signal Termination. This option is supported only for OTN circuits. NOTE: Circuit creation involving CST is only supported for ODU1 and ODU2 capacities.
Time slot selection	By default the time slot selection is in 'Manual' for OTN circuits.
Class Of Service	Select the type of protection required from the drop down menu. Unprotected: The circuit will have only one dedicated work path. Protected: The circuit will have one work path and one protect path. In case of failure in work path, the traffic switches to protect path. Y Cable: The circuit will have end to end paths which includes work and protect path with source and destination client protection.
TL BandWidth Calculation	Select the check box to view the bandwidth on the Topological links, displayed after Route creation.
Source/Destination Information
SrcTrafficType DestTrafficType	Allows the user to select the source and destination traffic pattern from the options: PDH SONET/SDH ETH OTN FC
Node/IP	Select the Node check box and enter the IP Address of the Source/Destination node in IP text box provided; or enter the node name in IP text box. On entering a letter, the list pertaining to that letter will be displayed.
Port	On entering a valid IP, available ports will be displayed in the drop down options depending on the capacity selected. Select the desired port.
TimeSlot	Click the M link and select the desired time slots.
Add/Remove source protection	Click the link to add or remove protection to the Source port. This option is not applicable to VCG circuit types. For adding protection, enter the Port and TimeSlot details.
Add/Remove destination protection	Click the link to add or remove protection to the Destination port. This option is not applicable to VCG circuit types. For adding protection, enter the Port and TimeSlot details.
Start Route Creation	Click this button to initiate route creation after entering valid circuit creation details.