Huawei OptiX OSN 550 Configuration Manual page 458

A Glossary and Acronyms
MTU
Multiprotocol Label
Switching
Multi-service
transmission platform
Multicast
Multiple Spanning
Tree Protocol
Multiplex Section
Overhead
Multiplex Section
Protection
Multiplexing
A.14 N
NE
NE Explorer
network element
network node interface The interface at a network node which is used to interconnect with another network node.
network segment
NLP
NMS
NNI
NPC
A-20
Maximum Transmission Unit
A technology that uses short tags of fixed length to encapsulate packets in different link
layers, and provides connection-oriented switching for the network layer on the basis of
IP routing and control protocols. It improves the cost performance and expandability of
networks, and is beneficial to routing.
A platform based on the SDH platform, capable of accessing, processing and transmitting
TDM services, ATM services, and Ethernet services, and providing unified management
of these services.
A process of transmitting data packets from one source to many destinations. The
destination address of the multicast packet uses Class D address, that is, the IP address
ranges from 224.0.0.0 to 239.255.255.255. Each multicast address represents a multicast
group rather than a host.
A protocol that can be used in a loop network. Using an algorithm, the MSTP blocks
redundant paths so that the loop network can be trimmed as a tree network. In this case,
the proliferation and endless cycling of packets is avoided in the loop network. The
protocol that introduces the mapping between VLANs and multiple spanning trees. This
solves the problem that data cannot be normally forwarded in a VLAN because in STP/
RSTP, only one spanning tree corresponds to all the VLANs.
The overhead that comprises rows 5 to 9 of the SOH of the STM-N signal. See SOH
definition.
A function, which is performed to provide capability for switching a signal between and
including two multiplex section termination (MST) functions, from a "working" to a
"protection" channel.
A procedure by which multiple lower order path layer signals are adapted into a higher
order path or the multiple higher order path layer signals are adapted into a multiplex
section.
See network element
The main operation interface, of the network management system, which is used to
manage the telecommunication equipment. In the NE Explorer, the user can query,
manage and maintain the NE, boards, and ports on a per-NE basis.
An NE contains both the hardware and the software running on it. One NE is at least
equipped with one system control and communication(SCC) board which manages and
monitors the entire network element. The NE software runs on the SCC board.
A part of an Ethernet or other network, on which all message traffic is common to all
nodes, that is, it is broadcast from one node on the segment and received by all others.
Normal Link Pulse
Network Management System
See network node interface
Network Parameter Control
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
Issue 02 (2011-06-30)