EMC Connectrix ED-64M, User Manual

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Connectrix ED-64M User Guide
Glossary
Link Incident A problem detected on a fiber optic link; for example, loss of light, or
invalid sequences.
Load Balancing The ability to distribute traffic over all network ports that are the
same distance from the destination address by assigning different
paths to different messages. Increases effective network bandwidth.
Loopback Plug In a fiber optic environment, a type of duplex connector used to wrap
the optical output signal of a device directly to the optical input.
Loopback Test Test that checks attachment or control unit circuitry, without checking
the mechanism itself, by returning the output of the mechanism as
input.
LUN Logical Unit Number; a number, assigned to a storage device, that
(in combination with the storage device node port’s WWN)
represents a unique identifier for a logical device on a storage area
network.
M
MAC Address Media Access Control address, the hardware address of a device
connected to a shared network.
Maintenance Port RS-232 connector on a Connectrix switch where a PC running an
ASCII terminal emulator can be attached or dial-up connection made
for specialized maintenance support.
Managed Product
A hardware product that can be managed using the Connectrix
Product Manager. For example, a Connectrix switch is a managed
product.
Management Session Exists when a user logs on to the Connectrix Management software
and successfully connects to the product server. The user must
specify the network address of the product server at logon time.
Media Access Control See MAC Address.
Megabyte (MB) A unit of measure for storage size, loosely one million bytes. One
megabyte actually equals 1,048,576 bytes.
MIB Management Information Base, a related set of objects (variables)
containing information about a managed device and accessed via
SNMP from a network management station.