Configuring SS7

The SS7 Configuration procedure creates an SS7 signaling stack along with link sets, links, and routes. Once the stack etc is created, an SS7 Channel group along with its ISUP group and CICs can be configured. The procedure below displays the basic steps needed to configure each object. Following each step is a link to the object being configured. The link will have more in depth descriptions of each of the fields within that object that can be used to determine configurations for your local network. Follow procedure below to configure a basic SS7 Signaling scenario. Below is a Quick Start diagram displaying the objects.

DG_tree_ClientView_ss7config.png

Configure SS7 Stack

Configure the SS7 signaling stack along with its links and Routes. Follow procedure below.

Note: Before proceeding, verify that the Basic Configurations topic has been achieved. The Basic Configurations topic sets up objects such as TDM Spans and TDM Profiles needed prior to starting the Configuring SIP procedure.

  1. Right click on the IMG Name object and select New Signaling. In the Signaling object that appears, there is no configuration needed. Refer to the Signaling topic for more information on this topic.

  2. Right Click on the Signaling object and select New SS7. In the object page that appears, Standalone will be displayed in the Redundancy Configuration field. Accept this setting. For more information refer to SS7 Signaling Object

  3. Right Click on the SS7 Standalone object and select New SS7 Stack. The Stack ID is automatically populated with next available number. In the OPC (Originating Point Code) field enter the point code of the SS7 Stack being configured. For more information refer to SS7 Stack topic.

Configure SS7 Link Set

A signaling link set is an abstract path between the 2020 IMG and an APC (Adjacent Point Code). Within each link set, multiple physical signaling links can be added. A signaling stack must be assigned to all links in a link set. A typical configuration consists of two link sets. When configuring multiple SS7 stacks, the Link Set ID's assigned to each signaling stack must be different. For example, if Link Set ID is assigned to Stack 1, it cannot also be assigned to Stack 2.

  1. Right Click on the SS7 Stack and select New SS7 Link Set. The link set ID is automatically populated with the next available ID.

  2. In the APC (Adjacent Point Code) enter the point code to which this link set will be connected. The format of the APC needs to follow the format given to the OPC. For example if the OPC is ITU 97, which follows the format 3-8-3, the APC should also be running ITU 97 and follow the 3-8-3 format. For more information on configuring the Link Set pane refer to SS7 Link Set object.

Configure SS7 Link

A signaling link is a point-to-point connection between two SS7 point codes (For example: A 2020 IMG and an STP). The signaling link is configured under the signaling link set. The place holder assigns a physical location in the 2020 IMG (timeslot) and a previously configured signaling link set to a signaling link. When configuring multiple stacks, the Link ID's assigned to each signaling stack must be different. For example, if Link ID:1 is assigned to Stack 1, it cannot also be assigned to Stack 2.

  1. Right Click the desired SS7 Link Set and select New SS7 Link. The Link ID field is automatically populated with the next available ID.

  2. In the IMG field will be all the nodes created within the Logical Node Group. Select from drop down menu which 2020 IMG the link being created is associated with.

  3. In the Interface - Offset field, select the Bearer Span/Interface Offset that the link will be created on. The Interface - Offset field drop-down menu will include all Bearer Spans/Interface Offsets available on the specific node selected. By default the first available span is displayed. Select which span to configure the signaling link on.

  4. Select from drop down menu the Channel that the link will be created on. For more information on the individual fields in the SS7 Link pane refer to SS7 Link topic.

Configure SS7 Routes

The path the SS7 signaling messages pass going from the OPC (Originating Point Code) to the DPC (Destination Point Code) is the SS7 Route. When configuring multiple SS7 stacks, the Route ID's assigned to each signaling stack must be different. For example, if Route ID:1 is assigned to Stack 1, it cannot also be assigned to Stack 2.

  1. Right Click SS7 Link Set and select New SS7 Route. The SS7 Route pane appears. The Route ID field is automatically populated with the next available ID.

  2. The Route Type field is automatically populated with New Route. This field has a drop down menu with other selections for when configuring combined link sets. Use the default if not configuring combined link sets.

  3. Enter the final Destination Point Code for this network in the New DPC field.

ITU - Point codes range from 0-0-0 to 7-255-7.

ANSI - Point codes range from 0-0-0 to 255-255-255.

  1. The Existing DPC field is automatically populated with the same value as entered in the New DPC field unless combined Link Sets are being configured. If combined link sets are being configured then the option of entering a DPC is allowed.

  2. Use drop down menu in the Priority field to assign a priority to a route when there are multiple routes to the same destination.

  3. Use the Comments field to enter a meaningful name to identify the route. For more information on the SS7 Route pane refer to the SS7 Route topic.

Configure Channel Groups, ISUP Groups, and CICs

Configure an SS7 Channel Group to communicate with the local SS7 network. Under each channel group a group of CICs or ISUP group is configured. Follow procedure below.

  1. Right click on the IMG EMS object and select New Routing Configuration. The Routing Configuration object is container object and no configuration is needed. Refer to Routing Configuration topic for more information on this object.

  2. Right Click on the Routing Configuration object and select New Channel Groups. The Channel Groups object is a container object for multiple channel groups. No configuration is needed here. For more information refer to Channel Groups topic.

  3. Right click on the Channel Groups object and select New Channel Group. In the Name field, enter a name for the Channel Group being configured.

  4. Select SS7 from the drop down menu in the Signaling Type field. For more information on configuring the SS7 Channel Group refer to Channel Group topic.

  5. Right Click on the SS7 Channel Group created and select New ISUP Group. Select the SS7 stack from drop down menu in the OPC-DPC field. The stack selected will be controlling the ISUP group being configured. For more information refer to ISUP Group-ANSI, ISUP Group-ITU topic.

  6. Right Click on ISUP Group created and select New Circuits. The IMG Name field will have drop down menu displaying all 2020 IMG's created under the logical node group. Select a 2020 IMG node.

  7. Select the interface that the CICs will be communicating through from drop down menu in the IMG Interface field. The selection Signaling refers to the four T1/E1 interfaces on rear of 2020 IMG. The selection Bearer refers to either the TDM Spans from the DS3 interface or the TDM spans from the Optical Interface.

  8. The circuits or CIC's created on this node will be controlled by the ISUP group created above. Refer to the Circuits - CIC's topic for more information on configuring this object.

Below is screen capture of ClientView Tree when finished with procedure:

SC_Tree_ClientView_SS7Stack_Config.png