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In this section:

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Excerpt

Use the GW Sig Port window to configure a signaling port for gateway-to-gateway (GW to GW) call signaling. The gateway-to-gateway signaling protocol transports call signaling messages between SBC (and GSX) instances over a TCP connection and requires that an external PSX is part of the network. The SBC supports gateway-to-gateway signaling on all platforms, including virtualized SBC SWe deployments.

The parameters to define the GW signaling port differ based on your type of SBC platform. For cloud-based deployments of SBC SWe (I-SBC or D-SBC), the parameters include IP Var so that the IP address for the port can be specified using a metavariable rather than a static IP address. For other SBC platforms, use the IP Address V4 or V6 parameter to enter a specific IP address.

The SBC supports a single GW signaling port at a time. The GW signaling port must be defined within the default address context and the defaultSigZone zone and assigned an index value of 1.

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View GW Sig Port

On the SBC main screen, go to choose a path:

  • All > Address Context > Zone > GW Sign Port
  • Configuration > System Provisioning > Category: Base Provisioning > Signaling Ports >
 GW
  • GW Sig Port
.

The GW Sig Port window is displayed. The following figure shows the window for an I-SBC or D-SBC (cloud) deployment that includes the IP Var parameter.


The following figure shows the window for non-cloud deployment, including the IP Address V4 or V6 parameter.

Create the GW Sig Port

To create a new GW Sig Port,

  1. Select default from the Address Context drop-down and defaultSigZone from the Zone drop-down.
  2. Click the New GW Sig Port on the GW Sig Port List panel.

The Create New GW Sig Port window is displayed. The following example shows the parameters for an I-SBC or D-SBC deployment.



GW Sig Port Parameters

Parameter

Length/Range

Description

Index

1-625234688

Set the index for the gateway signaling port to 1.

IP Interface Group Name

N/A

Choose the name of the IP interface group used by this signaling port.

Dscpvalue

0-63The SCP value for packets from this GW signaling port. The default value is 0.

IP Address

IPv4/IPv6 format

Specify the IP address for the gateway signaling listening port in IPv4 or IPv6 format.

This is a required parameter visible on hardware systems and SBC SWe systems that do not use metavariables.

Note: For cloud-based I-SBC, D-SBC and SBC SWe deployments, this parameter is not visible.

Port Number

1-65535

The logical port number of the TCP port to use for this connection. The default is 2569.

Role

N/A

The main role of the signaling port:

  • Primary (default) – the port that makes gateway signal link connection requests to other 
    Spacevars
    0product
    , using its IP address as the local address for listening.
  • Secondary – an alternate port that is used for listening only and cannot be used to establish new gateway signal links.

When no primary port exists, the 

Spacevars
0product
 cannot issue connection requests to other 
Spacevars
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s, whereby calls that require them are disconnected.

When a secondary port is configured as primary, the previous primary is automatically made secondary.

Mode

N/A

The operational state of the Gateway signaling service:

  • In Service (default) – the signaling port listens for incoming gateway signal link connection requests.
  • Out Of Service – the signal port is unavailable for incoming gateway signal link connection requests and thus cannot be used to create new gateway signal links to other 
    Spacevars
    0product
    s.

State

N/A

The administrative state of this gateway signaling port:
• Disabled – Inactive
• Enabled – Active

IP Var

0-255

Specify the metavariable to use to assign an IP address to the gateway signaling port in an I-SBC or D-SBC deployment. 

Note: This parameter is visible for only I-SBC and D-SBC deployments in the SBC SWe.

Edit the GW Sig Port

To edit any of the GW Sig Ports in the list, click the radio button next to the specific Gw Sig Port name.

  1. Click the radio button next to the name of the entry you want to edit. The Edit GW Sig Port window opens.

  2. Change the variable value and click Save.

Delete the GW Sig Port

To delete a GW Sig Port,

  1. Click the radio button next to the name of the entry you want to delete.
  2. Click the delete icon (X) at the end of the row.
  3. Confirm the deletion when prompted.