Admin Guide

Dynamic Host
Configuration
Protocol (DHCP)
A standard Internet protocol that dynamically configures hosts on an
Internet Protocol (IP) network for either IPv4 or IPv6. DHCP extends the
Bootstrap Protocol (BOOTP).
Dynamic Random
Access Memory
(DRAM)
A read-write random-access memory, in which the digital information is
represented by charges stored on the capacitors and must be repeatedly
replenished to retain the information.
File Transfer
Protocol (FTP)
A protocol that governs transferring files between nodes, as documented in
RFC 959. FTP is not secure and does not encrypt transferred data. Use
FTP access only after you determine it is safe in your network.
forwarding database
(FDB)
A database that maps a port for every MAC address. If a packet is sent to a
specific MAC address, the switch refers to the forwarding database for the
corresponding port number and sends the data packet through that port.
Generalized Regular
Expression Parser
(grep)
A Unix command used to search files for lines that match a certain regular
expression (RE).
I/O module An I/O module is a module that provides network connectivity for various
media (sometimes called Layer 0) and protocol types. I/O modules are also
called Ethernet modules.
Institute of Electrical
and Electronics
Engineers (IEEE)
An international professional society that issues standards and is a member
of the American National Standards Institute, the International Standards
Institute, and the International Standards Organization.
Internet Control
Message Protocol
(ICMP)
A collection of error conditions and control messages exchanged by IP
modules in both hosts and gateways.
Internet Group
Management
Protocol (IGMP)
IGMP is a host membership protocol used to arbitrate membership in
multicast services. IP multicast routers use IGMP to learn the existence of
host group members on their directly attached subnets.
Layer 1 Layer 1 is the Physical Layer of the Open System Interconnection (OSI)
model. Layer 1 interacts with the MAC sublayer of Layer 2, and performs
character encoding, transmission, reception, and character decoding.
Layer 2 Layer 2 is the Data Link Layer of the OSI model. Examples of Layer 2
protocols are Ethernet and Frame Relay.
Layer 3 Layer 3 is the Network Layer of the OSI model. An example of a Layer 3
protocol is Internet Protocol (IP).
Link Aggregation
Control Protocol
(LACP)
A network handshaking protocol that provides a means to aggregate
multiple links between appropriately configured devices.
Glossary
January 2017 Administering Avaya VSP 7200 Series and 8000 Series 248
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