User guide

LDAP (Lightweight Directory Access Protocol)
LDAP is a set of protocols for accessing information directories. LDAP is based on
standards contained in the X.500 standard, but is significantly simpler. Unlike X.500,
LDAP supports TCP/IP, which is necessary for Internet access. Because LDAP is a
simpler version of X.500, it is sometimes called X.500-lite.
Local port
The local port is the physical connection through which a KVM switch or serial
console appliance can be accessed without accessing a network connection.
For a KVM switch, the local port is typically the KVM connection at which a
keyboard, mouse and monitor can be connected directly to the switch. An onscreen
display may be invoked to control the KVM switch and access switched KVM ports.
For a serial console 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 KVM switches, serial console appliances, EVR1500
environmental monitor and control appliances and generic appliances (such as routers).
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.
Appendices 445