3Com Traffix Transcend Traffix Manager User Manual page 173

OSI
packet
physical layer
presentation layer
probe
protocol
protocol number
RMON-1
RMON-2
segment
SNMP
subnet mask
Open Systems Interconnection, a body of standards set by the
International Standards Organization to define the activities that must
occur when computers communicate. The OSI Reference Model is a
7-layer framework within which communications protocols and
standards have been defined.
A unit of information that contains data, origin information and
destination information, which is switched as a whole through a
network.
The first layer of the OSI Reference Model. This layer manages the
transfer of individual bits of data over wires, or whichever medium is
used to connect workstations and peripherals.
The sixth layer of the OSI Reference Model. This layer controls the
formatting and translation of data.
Standalone RMON-1 or RMON-2 agent responsible for gathering
network data on a remote segment and passing it up to a central
management station. Usually configured and controlled by the client.
As used in Traffix Manager, this is the RMON-2 decoding of the type of
traffic seen on the network.
The port or program number as defined by the parent protocol. For
example, if you are adding a TCP child protocol, the protocol number
will be the TCP port number.
Remote MONitoring. Subset of SNMP MIB II which allows monitoring
and management capabilities by addressing up to ten different groups
of information. Defined in IETF document RFC 1757.
Extends the capability of RMON-1 to include protocols above the MAC
layer.
For the purposes of the Traffix Manager reporter, a segment is
considered to be the interface on a particular agent on your network.
Simple Network Management Protocol. A protocol originally designed
to be used in managing TCP/IP internets.
A filtering system for IP addresses. It distinguishes the network ID part
of an IP address from the host ID part. A subnet mask is a 32-bit
number expressed as four decimal numbers, in the range 0 to 255,
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LOSSARY