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F5 SDC Troubleshooting Guide

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3 IP Connectivity

This section describes troubleshooting issues and solutions relating to IP connectivity.

Failed to Activate SCTP Associations

3.1.1 Error Description

Dialogic application (gctload) tries to activate a SCTP association and then a M3UA layer

using system.txt and config.txt files. If these files were not configured correctly, the assertions

of SCTP are left in a Not Active state and then the heart bit messages of M3UA are not sent.

3.1.2 Causes

The Installer creates and configures system.txt/and config.txt files. Any wrong configuration

causes failure of SCTP/M3UA layer activation.

3.1.3 Symptoms

Dialogic SCTP stack cannot work together with Linux native SCTP stack. The regular

diameter scenarios, such as CCR will not work.

 In system.txt file, SCTP is not configured to use native SCTP.

- There is a collision between native SCTP used by CPF and dialogic

version of SCTP used by Dialogic.

 License file of Dialogic is not installed according to requirements.

- The gctload application cannot activate any SS7 layer implementation

application (M3UA,SCCP,TCAP)

 The config.txt file is configured with wrong parameters:

- OPC,DPC,SCTP PORTs and IPs (remote and local)

- SIGTRAN Signaling Link Initiate command (SNSLI)

3.1.4 Resolution

The following are ways to resolve the issue:

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Red Hat NETWORK 4.0.5 - CHANNEL MANAGEMENTT GUIDE Anleitung zur Fehlerbehebung Seite 11