Avaya Media Gateway G350, Maintenance Manual

Page: 286 / 332

Alarming
Background terms
286 Maintenance of the Avaya G350 Media Gateway
June 2004
Alarm classifications
Alarms are classified depending on their effect on system operation:
•
MAJOR alarms identify failures that cause a critical degradation of service. These alarms require
immediate attention.
•
MINOR alarms identify failures that cause some service degradation but that do not render a
crucial portion of the system inoperable. Minor alarms require attention. However, typically a
minor alarm affects only a few trunks, stations, or a single feature.
•
WARNING alarms identify failures that cause no significant degradation of service or equipment
failures external to the switch. These failures are not reported to INADS or to the attendant
console.
•
ON-BOARD problems originate in the circuitry on the alarmed Media Module.
•
OFF-BOARD problems originate in a process or component that is external to the Media Module.
Background terms
Table 154, Alarming Background Terms, on page 286 gives a useful explanation of terms.
Table 154: Alarming Background Terms
Term Explanation
TRAP A trap is an event notification that is sent to the SNMP trap manager and
received from the Media Gateway, or RTCP Monitor (Avaya VisAbility).
ALARM Some traps are determined to be an alarm. If determined to be an alarm they
are sent to an appropriate alarm management site, such as INADS.
INADS Initialization and Administration System, a software tool used by Avaya
services personnel to initialize, administer, and troubleshoot customer
communications systems remotely.
SNMP Simple Network Management Protocol, the industry standard protocol
governing network management and the monitoring of network devices and
their functions.
RTCP Real Time Control Protocol, contained in IETF RFC 1889.
ISM Intelligent Site Manager, a VPN gateway on the customer’s LAN that
provides a means for services personnel to access the customer’s LAN in a
secure manner via the Internet.
VPN Virtual Private Network, a private data network that makes use of the public
telecommunication infrastructure, maintaining privacy through the use of a
tunneling protocol and security procedures.