Avocent DSView 3 Installer/User Manual page 368

350 DSView 3 Software Installer/User Guide
For a CPS or CCM appliance, the local port is typically the serial connection at which a
terminal can be connected directly to the appliance (CCM appliances have a dedicated console
port). A command line interface (CLI) is used to control the appliance and access switched
serial ports.
Managed appliance
Managed appliances include DS1800 digital switches, DSI5100 IPMI proxy appliances, DSR
switches, CPS appliances, CCM appliances, EVR1500 environmental monitor and control
appliances and generic appliances (such as routers).
MIB (Management Information Base)
MIB is a database of objects that can be monitored by a network management system (NMS).
SNMP uses standardized MIB formats that allow any SNMP tools to monitor any device
defined by an MIB.
NAT (Network Address Translation)
NAT is an Internet standard that enables a local-area network (LAN) to use one set of IP
addresses for internal traffic and a second set of addresses for external traffic. A NAT box
located between the LAN and Internet makes all necessary IP address translations.
NAT serves three main purposes:
• Provides a type of firewall by hiding internal IP addresses.
• Enables a company to use more internal IP addresses. Since they're used internally only,
there's no possibility of conflict with IP addresses used by other companies
and organizations.
• Allows a company to combine multiple ISDN connections into a single
Internet connection.
NAT device
A NAT device is a network address translation (NAT) device enables the use of more internal
IP addresses than the number that are assigned. A NAT device provides IP addresses that are
not exposed outside of the device. The DSView 3 management software will not support
network configuration where the DSView 3 software server and CPS appliances, CCM
appliances, DS1800 digital switches or DSR switches are separated by a NAT device.
Negative hysteresis
Negative hysteresis is the unsigned number of counts added to the raw threshold value, which
creates the re-arm point for all sensor thresholds that are less than zero (0). A negative
hysteresis value of 0 indicates that any thresholds less than zero do not contain hysteresis.
OSCAR interface
The OSCAR interface is a tool that is built in to Avocent appliances and allows a user
connected to the local KVM port to display and change settings in a DS1800 digital switch or
DSR switch. The OSCAR interface also allows a local user to connect to target devices.