Agilent Technologies J3916A Manual do Utilizador descarregar pdf (Página 168)

Glossary

148

Subnet Mask

Identifies the subnet field of a network address and is a 32-bit Internet address

written in dotted-decimal notation. A subnet mask is used to divide a network into

sub networks.

SVC (Switched Virtual Circuit)

A virtual circuit which is dynamically created and torn down when no longer

active.

Synchronous Data Link Control (SDLC)

This level 2 protocol was developed by IBM. While it is not actually a standard

(as being defined by a standards organization) it is commonly used. All data

transmissions are in frames, and the starting flag, address, and control fields are

known as Header information and the FCS and ending flags are known as Trailer

information.

Terminal Equipment.

Telemetry Port

The Telemetry port only receives packets destined for the port’s IP address, can

transmit packets onto the network, and is used for SNMP communications to the

probe. It requires the IP Address, Subnet Mask, and Default Gateway IP Address

fields. The following apply to Monitor/Transmit ports:

HP OpenView can discover the interface

The interface is IP addressable

The interface responds to RMON groups 1 through 9 queries

The interface will transmit all traps from the probe

The interface will transmit all extended RMON packet samples from

Monitor-only ports, Monitor/Transmit ports, and itself.

Terminal

An input/output device that permits interaction with a probe or computer. The

device can be a display and keyboard, or a personal computer. An ASCII terminal,

or PC emulating an ASCII terminal, can be connected to the probe for

configuration, monitoring, and troubleshooting the probe.

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Agilent Technologies J3916A Manual do Utilizador Página 168