Avocent Network Device SPC420 - Manual (Page 23)

Chapter 1: Product Overview 3
You may configure one or more spoke (backup) servers in addition to the hub server. The hub
server is responsible for maintaining the master copy of the database in a DSView 3 software
system. Only one server in a DSView 3 software system may be configured as the hub server.
Spoke servers perform database replication with the hub server. The hub server acts as the
coordinator for database replication between itself and all of the other spoke servers in a DSView 3
software system. A hub server and a spoke server both offer the same DSView 3 software
functionality to a user. The distinction of hub or spoke refers only to the database replication role
that the server plays and not with the functionality that the server provides. Adding one or more
spoke servers to a DSView 3 software system provides redundancy and the ability to distribute
DSView 3 software functionality across multiple sites.
After the hub server and optional spoke server(s) are configured, you may create and configure the
type of access levels for users within your network environment. You may also set up event logs to
record full details of user access and other events.
DSView 3 software client
A DSView 3 software client is a computer with a web browser that can access the DSView 3
management software installed on the DSView 3 server.
Third party products
Third party products are not a part of the DSView 3 software, but are supported for use with it.
External authentication servers - An external authentication server enables the DSView 3 server to
broker authentication requests from users requesting access to the DSView 3 software system.
SNMP managers - The SNMP (Simple Network Management Protocol) manager monitors the
managed appliances and receives SNMP traps from the DSView 3 software on the server. An
example of an SNMP manager is the HP OpenView product.
Third party Telnet viewers - A third party Telnet viewer may be used for serial sessions instead of
the DSView 3 software Telnet Viewer.
Third party session software - Third party software such as RDP or VNC, when properly installed
and configured on the target device, may be enabled for use within the DSView 3 software for
initiating sessions with the target device. At the beginning of a session, the RDP viewer allows
users to map local resources for use with virtual media.
NOTE: RDP is only available on supported Windows system clients.
Partner products
Environmental monitoring with Uptime Devices
DSView 3 software can help you access Uptime Devices SensorHub environmental monitoring
equipment so you can quickly detect environmental conditions (equipment to track temperature,
humidity, airflow, water, voltage and contact closures) that could adversely affect operation of
servers and other network devices. Visit www.uptimedevices.com for ordering information.