Header

Sections

Archive

Su	Mo	Tu	We	Th	Fr	Sa

			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31

Syndication

Newsletter

Subscribe to newsletter:

Home : CCNP : A Typical Modem Connection

Email to a friend email

email

Print version print

print

A Typical Modem Connection

Jul 22,2008 by admin

small font

medium font

large font

A Typical Modem Connection

The devices involved in a modem connection belong to one of two groups: data terminal equipment (DTE) or data communications equipment (DCE).

NOTE

Interestingly, the Electronic Industries Association (EIA) defines DCE as data communications equipment. However, the International Telecommunication Union-Telecommunications Standards Sector (ITU-TSS, or ITU-T) defines DCE as data circuit-terminating equipment.

Examples of the DTE devices are

PCs
Routers
Mainframe computers

DCE devices include

Modems
Channel service units/data service units (CSUs/DSUs)

Related news

No matching news for this article

Did you enjoy this article?

(total 0 votes)

comment

Comments (0 posted)

More Top News

WAN Optimization

Managing Applications

Testing New Applications

Reducing Application Latency

Managing Distributed Servers

Protecting Data on Distributed Servers

Providing Timely Remote Service and Support

Using Centralized Management Methods

Facing the Unavoidable WAN

Changing the Application Business Model

Consolidating and Protecting Servers in the New IT Operational Model

Server Consolidation

Compliance, Data Protection, Business Continuity, and Disaster Recovery

Business Continuance and Disaster Recovery

Networks and Application Performance

Understanding Why TCP Adds Latency

Checksum Verification

Data Reordering

Understanding How Other Protocols Add Latency

Understanding the Physics Aspect of Latency

Serialization Delays

Processing Delays

Forwarding Delays

Understanding Application Protocol Latency

Application and Protocol Barriers to Application Performance

Application Protocols

CCNP

Types of Remote-Access Users

Remote-Access Technologies

Cable Modem Services

Building a CCNP Remote-Access Lab

Creating WANs by Using a Cisco Router as a Frame Relay Switch

Configuring the Clock Rate on a DCE Interface

show controller Command

Configuring a Cisco Router as a Frame Relay Switch

Configuring a Basic Frame Relay Switch

Entire Frame Relay Configuration

Creating Asynchronous, ISDN, PPP, DDR, Dial Backup, AAA, and Security Labs

Modem Connections and Operation Overview

A Typical Modem Connection

Communication Between DTE Devices

DTE-to-DCE Communication

Modem Control Functions

DCE-to-DCE Communication

RJ-45 Wiring and Cables

DTE-to-DCE Wiring

Data Compression and Error Control

Configuring the Modem (DCE)

Connecting to the Modem (DCE)

Differentiating Between a Forward and Reverse Connection to a Modem

Configuring a Reverse-Telnet Session

Cisco IOS

Configuring the Router via TFTP

Saving Router Configuration to Server

Booting the Router Using a Remote Configuration File

Storing Configuration Files Larger Than NVRAM

Clearing the Startup Configuration

Loading a New IOS Image

Booting a Different IOS Image

Booting over the Network

Copying an IOS Image to a Server

Copying an IOS Image Through the Console

Deleting Files from Flash

Partitioning Flash

Using the Router as a TFTP Server

Generating Large Numbers of Router Configurations

Changing the Configurations of Many Routers at Once

Extracting Hardware Inventory Information

Backing Up Router Configurations

Configuration Archiving

Locking Configuration Access

Creating Command Aliases

Managing the Router's ARP Cache

Tuning Router Buffers

Auto Tuning Buffers

Using the Cisco Discovery Protocol

Disabling the Cisco Discovery Protocol

Using the Small Servers

Enabling HTTP Access to a Router

Enabling Secure HTTP (HTTPS) Access to a Router

Using Static Hostname Tables

Voice Over IP

Robbed-Bit Signaling

Channel Associated Signaling T1

E1 Channel Associated Signaling

Framing and Signaling

Channel Associated Signaling - E1

Enabling VoIP Fax and Modem Transmission

Cisco Fax Relay

T.37 Fax Store and Forward

Fax Pass-Through

Modem Pass-Through

Navigating Your Hands-On Lab

Initial Configuration

Router R1's Configuration

Router R2's Configuration

Router R3's Configuration

Router R1's show ip route Output

Router R2's show ip route Output

Router R3's show ip route Output

Router R1's ping 10.7.7.2 Output

Voice Interface Configuration

Configuring Voice Ports

Voice Applications

PBX-to-PBX Calls

CallManager-to-CallManager Calls

On-Net to Off-Net Calls

Voice Port Call Types Type of Call

LAN Switching Foundation Technologies

Broadcasts and Multicasts

Introducing Spanning Tree Protocol

Spanning Tree Blocking

Spanning Tree Operations

Switch1 Becomes Root

Spanning Tree Interface Costs Bandwidth

Bridge Protocol Data Unit Format

Spanning Tree Port Transitions and Timers

Topology Changes in STP

Topology Change Because of a Link Failure

LAN Switch Architecture

Receiving Data—Switching Modes

Cut-Through Mode

Fragment-Free Mode

Store-and-Forward Mode

Shared Bus Switching

Frame Flow in a Shared Bus

Crossbar Switching

Port Buffered Memory

Oversubscribing the Switch Fabric

Congestion and Head-of-Line Blocking

In the Beginning—Catalyst 5000/5500 (Project Synergy)

Catalyst 5000/5500 Switch Components

Catalyst 5000/5500 Models Model

Network Management Processor (NMP)

Master Communications Processor (MCP).

Nonvolatile random-access memory (NVRAM)

Most Popular

OSI Upper Layers

Autonegotiation Configurations for 10/100 Ethernet Configuration NIC (Speed/Duplex)

In the Beginning—Catalyst 5000/5500 (Project Synergy)

Enabling Secure HTTP (HTTPS) Access to a Router

Most Commented

Featured Author

admin