Specifications

Alarms and troubleshooting features
Issue 1 January 2008 39
● Protection against DoS (Denial of Service) attacks via:
- MSS notifications. The G450 identifies predefined or custom-defined traffic patterns as
suspected DoS attacks and generates SNMP notifications, referred to as Managed
Security Services (MSS) notifications. MSS notifications are intercepted and, if certain
conditions are met, may be forwarded to the Avaya Security Operations Center (SOC)
as INADS alarms. The SOC is an Avaya service group that handles DoS alerts,
responding as necessary to any DoS attack or related security issue.
- SYN cookies, which protect against a well-known TCP/IP attack in which a malicious
attacker targets a vulnerable device and effectively prevents it from establishing new
TCP connections.
Alarms and troubleshooting features
The G450 has extensive features for error detection, alarms, and troubleshooting. Detailed
diagnostic information and troubleshooting are provided by software-based solutions accessible
by laptops in the field or remotely from an administrator’s computer. Administration for the
Avaya G450 Media Gateway, 03-602055, provides a comprehensive guide to configuring and
using these solutions.
Front panel LEDs
LEDs on the front panel of the G450 and the media modules give a quick overall understanding
of the health of the system and subsystems. When alarms or problems occur, LEDs indicate
that a technician’s attention is needed.
Automatic error detection
During normal operations, software or firmware automatically detects and attempts to fix or
circumvent error conditions. Errors are detected in two ways:
● Firmware on a system component during ongoing operations
● A “periodic test” or a “scheduled test” started by software
A technician can run more comprehensive tests on demand.