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Communications by Mind Map: Communications
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Communications

Basic Types of communication

List 1

Timed Sequence [aka stream]

Open Sequence [aka file]

Message [aka packet]

List 2

Sequence, Open, Closed

Transfer Modes

CO-CS

CO-PS

CL-PS

Forwarding Modes

Destination based ( destination aware )

Channel based ( destination un-aware ) ( aka 'broadcast medium' )

Properties of Information

Copying

Merging

Measuring

Transport Processing Functions

Labeler

Encoder

Adapter

Termination

Layer Processor

Forwarder

Equivocation Handler

Identification of Information

Resource

Forwarding Point

Forwarding Address

Sequence of Next-hops

Communication Instance

Access Point

Axioms

Telecommunications networks are concerned with the conveyance of information between senders and recipients when the senders and recipients are separated geographically

The means by which communications can be conveyed by telecommunications networks (resources) is normally limited and therefore needs to be shared amongst many communications

A telecommunication network needs to be able to select (and therefore identify) a sender of a communication and to select (and therefore identify) the intended recipients of that communication

The information content of a communication conveyed by the telecommunications network is sometimes subject to loss

The resources of a telecommunications network are administered by one or more organizations

Topological Components

Layer Network

Subnetwork

Link

Access Group

Failure Modes

CO-CS

Loss

Mis-Connection

CO-PS

Loss

Mis-Connection

Mis-Merge

CL-PS

Loss

Impairments

Symbol related

Symbol value degeneration

Symbol order degeneration

Symbol timing degeneration

Symbol delivery degeneration

Symbol non-delivery

Forwarding relationship related

Unexpected symbols (Ingress port with attached sender)

Symbol miss-delivery (egress port with attached receiver is added)

Ingress port with attached sender is removed

Egress port with attached receiver is removed

Short-break (forwarding relationship modified etc.)