Create P2P/MEP circuits

Circuits can be created across multiple EMS and Partitions in NMS. Following types of circuits can be created:

P2P/MEP circuit
Singleton circuit

To create P2P/MEP circuit, go to Configuration > Layer 1 > Create Circuit menu and click P2P/MEP Circuit. Create Circuit window is displayed in a new tab.

Create Circuit window

Create P2P/MEP Circuit Icons/Buttons

Number	Icons/Buttons	Operation
1	Mode	Displays the different mode: Work, Protect, Backup, and Protect Continue.
2	Refresh	Resets the parameters on the Create Circuit window. On clicking, a message All information on this page will be lost. Do you want to reset the page? will be displayed. Click OK to continue.
3	Pan icon	Allows the user to move the screen where circuit is displayed in all the directions.
4	Expand	Displays outgoing links of selected node with EMS and port details.
5	Delete	Deletes the selected node and work or protection group.
6	Show/Hide Labels	Displays the port details in the graphical view.
7	rearrange the graph	Re-arranges the graphical view displayed.
8	Show Alarms on selected path	Displays the alarms of the selected path.
9	Show Link Status	Displays the link status of the path.
10	Create Circuit	Creates a circuit in planned (pending) state in NMS database.
11	Create and Activate Circuit	Creates a circuit in NMS database as well as participative nodes in the circuit.
12	Close	Click the button to close the Create Circuit window.
13	Reversion	Allows you to provision the circuit in revertive and non-revertive mode and it is applicable only for protective circuits.
14	Properties	Displays the attributes and values of the selected node or the route details.
15	All Routes	Displays the routes existing on a circuit as WorkPath, ProtectPath. Click the desired path link to view the details of the Path under Properties section. The selected path will also get highlighted in pink in graphical view of the circuit.

NOTE: When the pan icon () is clicked, the icon shape is changed to the other pan icon (). This icon allows the user to move the screen where circuit is displayed using the arrow button placed on the top left side of the page.

Attributes of Create Circuit

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 to be created from the drop down menu: SDH/PDH/VCG DWDM Circuit OTN Circuit
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. This parameter is not displayed for DWDM circuit type. VT1.5/VC11 VT2/VC12 STS1/VC3 STS3/VC4 STS12/VC4_4C STS48/VC4_16C STS192/VC4_64C ODU0 ODU1 ODU2 ODU2E 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.
Links	Enter the number of links required. This is applicable only for VCG circuits.
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 NMS 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 'Auto' for SDH/PDH/VCG circuits and '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. Diamond Service: The circuit will have three end to end paths which includes work, protect, and backup paths.
TL BandWidth Calculation	Select the check box to view the bandwidth on the Topological links, displayed after Route creation.
Frequency Selection	This parameter is displayed for DWDM Circuit Type only. Manual: Select the radio button for manual selection of time slots. On selection, M link will get displayed against the Frequency parameter under Source Information. Auto: Select the radio button for automatic selection of time slots.
Provisioning selection	This parameter is displayed for DWDM Circuit Type only. Frequency: Frequency based selection. Port: Port based selection.
Source/Destination Information
SrcTrafficType DestTrafficType	Allows the user to select the source and destination traffic pattern from the options: PDH VCG SONET/SDH RADIO_PDH RADIO_SDH/RADIO_SONET ETH OTN FC This parameter is not displayed for DWDM circuit type.
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 the Capacity selected. Select the desired port.
TimeSlot	If manual selection of time slots was selected, click the M link and select the desired time slots. If auto selection of time slots was selected, the TimeSlot will be automatically selected.
Frequency	This parameter is applicable for DWDM circuit type only.
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.
NOTE: The source and destination protection should be on the same nodes for Point-to Point (P2P) circuits whereas the source and destination protection can be on different nodes for Multi End Point (MEP) circuits.

Modifying the Timeslots

perform the following steps to modify the time slots of a circuit:

Click Configuration > Layer 1 > Create Circuit menu and click P2P/MEP Circuit. The Create Circuit window is displayed in a new browser window.
Enter the details for Create Circuit, Source information and Destination Information.
Click Start Route Creation. The graphical view is shown at the right side of the window.
The user has to manually select the path from source to destination. A table with all outgoing topological links from source node is displayed. It can be seen by selecting the node (source or any other node) and then clicking on "Expand" button. The table contains topological links outgoing from the selected/highlighted node, with port details.
Double-click the desired topological link in the table to select the path.
For creating protect path, select the class of service as "Protected".
Select a node for creating the protect path.
Click WorkPath to see the work path. The work path is highlighted. The Properties section displays the details about the object selected in All Routes section.
Click ProtectPath to see the protect path. The protect path is highlighted. The Properties section displays the details about the object selected in All Routes section.
Select the trunk from the create circuit window to modify the time slots.
Select the desired time slot from the Properties window after clicking the R button.
Select the Create option. The circuit will be in planned state in NMS and it will be stored in the NMS database OR Select the Create & Activate option. The cross connects will be provisioned on the node as well as on NMS.