user manual

Tsunami MP.11 Installation and Management
Glossary 83
CPN 63708 Issue Date: 02/05/2003
Simple Network Management Protocol (SNMP)
A protocol used for the communication between a
network management application and the devices it
is managing. The network management application
is called the SNMP manager; the devices it manages
have implemented SNMP agents. Not only the MP.11
but also almost every network device contains a
SNMP agent. The manageable objects of a device
are arranged in a Management Information Base,
also called MIB. The Simple Network Management
Protocol (SNMP) allows managers and agents to
communicate for accessing these objects.
Spanning Tree Protocol (STP)
The Spanning Tree Protocol (STP) can be used to
create redundant networks (“hot standby”) and to
prevent loops. If enabled, spanning tree prevents
loops by disabling redundant links; if a link fails, it
can automatically enable a backup link.
Subnet Mask
A subnet mask is a bit mask that defines which part
of an IP address is used for the network part and
which part for a host (computer) number. A subnet
mask is like an IP address represented by four
numbers in the range 0 - 255 separated by dots.
When the IP address 172.17.23.14 has a subnet
mask of 255.255.255.0, the network part is
172.17.23 of the host number is 14. See also IP
address.
Table
Tables hold parameters for several related items.
For example, you can add several potential
managers to the SNMP IP access table. Tables can
be displayed using with the Web Interface,
command line interface and SNMP.
Topology
Topology is the physical layout of network
components (cable, stations, gateways, hubs, and
so on).
Trap
A trap is used within SNMP to report an unexpected
or unallowable condition.
Triusingl File Transfer Protocol (TFTP)
Triusingl File Transfer Protocol (TFTP) is a
lightweight protocol for transferring files that is like
a simple form of File Transfer Protocol (FTP). A TFTP
client is implemented on the MP.11; using the
upload and download commands, the MP.11 can
respectively copy a file to or from a TFTP server.
TFTP server software is provided on the MP.11 CD-
ROM.
Upload
Uploading a file means copying a file from a network
device to a remote server. In case of the MP.11
uploading means transferring a file from the MP.11
to a TFTP server. See also download.
Upstream
Upstream means a data stream from the end users
to the central part of the network. See also
downstream.
WEP
The Wired Equivalent Privacy (WEP) algorithm is the
standard encryption method used to protect wireless
communication from eavesdropping.
WORP
The Wireless Outdoor Router Protocol (WORP) was
designed to optimize long distance links and
multipoint networks with Hidden Node effect to
eliminate collisions and loss of bandwidth.