User guide

Other managed appliances may be supported by a plug-in.
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 server and KVM
switch or serial console appliance 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 KVM switch.
The OSCAR interface also allows a local user to connect to target devices.
Appendices 453