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DSI Signaling Server SGW Mode User Manual Issue 5

Chapter 10: Signaling Server SNMP

10.1 Overview

The Signaling Server supports two distinct SNMP offerings:

• A basic offering supporting a simple SNMP MIB: DK4032 SNMP. (See Section 10.1.2)

• An extended SNMP offering comprehensive support for status and traps, Distributed Structure

Management Information (DSMI) SNMP. On SS7G21 and SS7G22 systems DSMI SNMP requires the

purchase of the SS7SBG20SNMP software license. On the SS7G31 and SS7G32 systems the DSMI SNMP

license is included with the purchased SGW license. (See Section 10.1.1.)

SNMP operation is disabled by default.

Activating SNMP

SNMP support can be activated for:

• Basic SNMP, by setting the CNSNS MMI command's SNMP parameter to DK4032.

• Extended SNMP operation (if licensed) by setting the CNSNS MMI command's SNMP parameter to DSMI.

The server should be restarted using the MNRSI command to activate the SNMP agent.

10.1.1 DSMI SNMP

DSMI SNMP functionality allows the configuration of V1 (RFC 1157), V2c (RFC 1901) or V3 (RFC 2571) SNMP

traps notifying external SNMP managers of alarm conditions and configuration state changes for the objects

supported on the MIB.

For all objects represented within the DSMI MIB — and these include platform hardware components as well

as configuration aspects — the MIB will maintain current object state and alarm conditions affecting the

object.

SNMP traps can be configured on a per-object basis such that the remote SNMP manager is notified

whenever the object is created, destroyed or the object state changed. Traps can also be configured to notify

the manager of all events affecting the object. SNMP traps identify the event affecting the object — be it an

alarm indication or configuration state change — and an event severity level.

For details of the DSMI SNMP MIB, supported alarms, SNMP traps and configuration refer to the Dialogic

DSI Signaling Servers SNMP User Manual. (U05EPP01).

10.1.2 DK4032 SNMP

DK4032 SNMP supports an SNMP version 1 managed agent to allow a remote management platform to

interrogate the current alarm status of the Signaling Server. Variables are supported from the MIB II system

branch and from an enterprise MIB. The MIB provides read-only access to all variables.

The MIB II system branch provides basic information about managed node, that is, the Signaling Server. The

Enterprise-specific branch of the MIB provides information as to the number of outstanding alarms, grouped

by Category and Class (see Chapter 8, “Alarm Fault Code Listing”).

You should then use your SNMP manager to communicate with Signaling Server, using the SNMP UDP port

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