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MLD:
MLD is an acronym for Multicast Listener Discovery for IPv6. MLD is used by
IPv6 routers to discover multicast listeners on a directly attached link, such as
IGMP is used in IPv4. The protocol is embedded in ICMPv6, instead of using a
separate protocol.
MVR:
Multicast VLAN Registration (MVR) is a protocol for Layer 2 (IP)
-
networks that
enables multicast
-
traffic from a source VLAN to be shared with subscriber
-
VLANs.
The main reason for using MVR is to save bandwidth by preventing duplicate
multicast streams being sent in the core network. Instead, the stream(s) are
received on the MVR
-
VLAN and forwarded to the VLANs where hosts have
requested it/them (Wikipedia).
N
NAS:
NAS is an acronym for Network Access Server. The NAS acts as a gateway to the
guard access to a protected source. A client connects to the NAS, and the NAS
connects to another resource to ask whether the client's supplied credentials
are valid. Based on the answer, the NAS then allows or disallows access to the
protected resource. An example of a NAS implementation is IEEE 802.1X.
NetBIOS:
NetBIOS is an acronym for Network Basic Input/Output System. It is a
program that allows applications on separate computers to communicate
within a Local Area Network (LAN). It is not supported on a Wide Area Network
(WAN).
The NetBIOS gives each computer in the network both a NetBIOS name and an
IP address corresponding to a different host name. It provides the session and
transports services described in the Open Systems Interconnection (OSI)
model.
NFS:
NFS is an acronym for Network File System. It allows hosts to mount partitions
on a remote system and use them as though they are local file systems.
NFS allows the system administrator to store resources in a central location on
the network to provide authorized users continuous access to them. This
means NFS supports sharing of files, printers, and other resources as persistent
storage over a computer network.
NTP:
NTP is an acronym for Network Time Protocol, a network protocol for
synchronizing the clocks of computer systems. NTP uses UDP (datagrams) as
transport layer.
O
OAM:
OAM is an acronym for Operation Administration and Maintenance.
It is a protocol described in ITU
-
T Y.1731 used to implement carrier Ethernet
functionality. MEP functionality like CC and RDI is based on this.
