LevelOne GTL-2691 User Manual

Page 1617

LOSSARY

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INK

GGREGATION

See Port Trunk.

LLDP

Link Layer Discovery Protocol is used to discover basic information about

neighboring devices in the local broadcast domain by using periodic

broadcasts to advertise information such as device identification,

capabilities and configuration settings.

MD5

MD5 Message-Digest is an algorithm that is used to create digital

signatures. It is intended for use with 32 bit machines and is safer than the

MD4 algorithm, which has been broken. MD5 is a one-way hash function,

meaning that it takes a message and converts it into a fixed string of digits,

also called a message digest.

MIB

Management Information Base. An acronym for Management Information

Base. It is a set of database objects that contains information about a

specific device.

MRD

Multicast Router Discovery is a A protocol used by IGMP snooping and

multicast routing devices to discover which interfaces are attached to

multicast routers. This process allows IGMP-enabled devices to determine

where to send multicast source and group membership messages.

MSTP

Multiple Spanning Tree Protocol can provide an independent spanning tree

for different VLANs. It simplifies network management, provides for even

faster convergence than RSTP by limiting the size of each region, and

prevents VLAN members from being segmented from the rest of the group.

ULTICAST

WITCHING

A process whereby the switch filters incoming multicast frames for services

for which no attached host has registered, or forwards them to all ports

contained within the designated multicast VLAN group.

MVR

Multicast VLAN Registration is a method of using a single network-wide

multicast VLAN to transmit common services, such as such as television
channels or video-on-demand, across a service-provider’s network. MVR

simplifies the configuration of multicast services by using a common VLAN

for distribution, while still preserving security and data isolation for

subscribers residing in both the MVR VLAN and other standard VLAN

groups.

NTP

Network Time Protocol provides the mechanisms to synchronize time

across the network. The time servers operate in a hierarchical-master-

slave configuration in order to synchronize local clocks within the subnet

and to national time standards via wire or radio.