SS7 Route

The Signaling Route is the path the signaling message takes to pass between two SS7 endpoints. The route is the path from the Originating Point Code (OPC) to an Adjacent Point Code (APC). The Signaling Route has three basic elements:

Destination Point Code - The point code of the final destination SS7 network entity.

Adjacent Point Code - The point code of the SS7 Network Entity that is adjacent to the originating SS7 network entity. The signaling would need to pass through this network entity to get to its final destination

Signaling Link/Link Set - The links to carry the messaging from destination to destination.  More than one link is used to transmit the messaging. These links are combined into Link Sets.

This SS7 Route object defines a route from the 2020 IMG to an SS7 destination (DPC). See below for more information.

 

ClientView Pane

IMG EMS > Logical IMG > IMG Name > Signaling > SS7 > SS7 Route

SC_SS7_Route.png
 

Maximum Objects

Up to 512 routes to 128 destinations per 2020 IMG Logical Node Group

 

Related Topics and Dependencies

To configure an SS7 Route, the SS7 Stack, SS7 Link Set, and SS7 Link must first be configured.

Configuring SS7

 

Field Descriptions

Route ID

The Route ID Field identifies the SS7 Route being configured. The Route ID field is automatically populated with the next available ID. The ID can be changed by clicking in the Route ID field and selecting a new Route ID from drop down list. The Route ID's range from Route ID 0 to Route ID 511.

 

Route Type

The Route Type has two basic selections. The first is New Route which is used when configuring a route to a destination endpoint. In this configuration the Combined Linkset ID and Existing DPC fields will be green and cannot be modified. The second is Combined Linkset (Enabled or Disabled). The Combined Linkset establishes the availability of alternate routing configurations that can each serve as a primary path, providing load sharing across the network. Within a combined link set, every link is given an equal priority in the routing assignments to the same destination. This means that the more paths that exist to a specific destination in a network, the more reliably messages can be transmitted, even when one or more configured routes fail or experience power outage for any reason. The combined link set will contain links to both Signal Transfer Points (STPs) in an SS7 network that are paired for redundancy and connected to each other by cross links.

New Route - Select New Route whenever the route being configured is the first route to either an Adjacent Point Code (APC) or Destination Point Code (DPC). The Combined Linkset ID and Existing DPC will be grayed out and cannot be modified when selecting New Route.

Existing Route (Combined Link Set Disabled) - Select Existing Route (Combined Link Set Disabled) whenever the route being configured is going to an Adjacent Point Code (APC) through an existing route already configured. These are usually cross routes.

Existing Route (Combined Link Set Enabled) - Select Existing Route (Combined Link Set Enabled) when creating a route to an existing Destination Point Code (DPC). The route being configured will use all existing routes that are configured to get to that DPC. For example, there could be three STP/APC's configured to communicate with the 2020 IMG and these STP/APC's are also already configured to communicate with the DPC. By using this setting, the 2020 IMG will load share the messaging to the DPC using all existing routes.

 

Combined Linkset ID

This field will be enabled only if the Route type is set to Existing Route (Combined Link Set Enabled). This field is a pull-down menu of all configured linksets.

 

New DPC

This field identifies the Point Code of the Destination. Point codes can be expressed in dotted decimal or decimal format. This field can be modified if the Route Type is configured as New Route. Enter the Point Code of the APC/STP that this route is communicating with. The Point Code being entered is the point code of an adjacent STP or the point code of an adjacent STP going through another adjacent STP (Cross Route).

 

Existing DPC

This field will be enabled only if the Route type is set to Existing Route (Combined Link Set Disabled) or Existing Route (Combined Link Set Enabled). When configuring a route to a destination the point codes of all existing destinations will be available in a drop down menu.

 

Priority

This field identifies the priority of the route when there are multiple routes to the same destination. This field will be disabled when the route type is set to Existing Route (Combined Link Set Enabled) because all the routes within the combined link set will have the same priority. Below are a set of rules to follow:

 

Comments

Enter a description of this route, such as the location and type of the Destination. (For example: Chicago 5ESS.)

 

Display Table

For easy reading, the Display Table establishes a list of the configured SS7 Routes with Route ID's, DPC's, priorities, etc.