User guide

Dialogic

DSI Development Package for Linux - Release Notes Release 6.2.9

Release 6.2.9

1 Overview

This release is a maintenance release containing a number of important

corrections relating to the operation of the SS7MD board. It also includes

important changes to SCTP and MST binaries and a number of minor changes

and corrections to M3UA and MAP.

The release is fully backwards compatible with the previous release.

1.1 Applicability

This release is suitable for all users.

Due to the important corrections included in this release, all users of the

SS7MD card should upgrade existing deployments to this release as soon as

practical in order to avoid potential issues including board lock-up.

All users of the Sigtran Monitoring software (MST) should also upgrade to this

release to avoid potential message loss of some M3UA messages.

1.2 Resolved Customer Issues

Updates to resolve the following customer issues are included in this release:

IPY00091767, IPY00092738.

2 New Functionality

2.1 SS7MD – Use of Protected Monitoring Points

This release enhances SS7MD support for monitoring by introducing a new

mode of operation for use when attaching to a Protected Monitoring Point

(PMP). In this mode the receiver sensitivity of the E1/T1 interfaces on the

SS7MD is increased to compensate for the loss introduced by the PMP.

The new mode of operation is selected using the ‘liu_type’ parameter in the

LIU_CONFIG command in config.txt. When monitoring using a PMP ‘liu_type’

should be set to 8 for E1 interfaces and 9 for T1 interfaces.

When connecting to a PMP this should be the preferred mode of operation.

2.2 SS7MD – Link status for AAL5 Monitor Links

This release enhances the mechanism for generating IN SERVICE / OUT OF

SERVICE indications for an AAL5 Monitored Link so that if the rate of received

messages falls below a fixed threshold of 10 messages per second the link is

deemed to be out of service. Under normal operating conditions the link

management messages will ensure that traffic exceeds this rate. Link state is

indicated using the ATM_MSG_LINK_STATE (0x026b) message defined in the

SS7MD Programmer’s Manual.