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"Fault-tolerant computer systems are systems designed around the concepts of fault tolerance. In essence, they have to be able to keep working to a level of satisfaction in the presence of faults. ...
Most fault-tolerant computer systems are designed to be able to handle several possible failures, including hardware-related faults such as hard disk failures, input or output device failures, or other temporary or permanent failures; software bugs and errors; interface errors between the hardware and software, including driver failures; operator errors, such as erroneous keystrokes, bad command sequences, or installing unexpected software; and physical damage or other flaws introduced to the system from an outside source." [Fault-tolerant computer system. Wikipedia]
The computer network diagram example "Cisco LAN fault-tolerance system" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.
LAN fault-tolerance system
LAN fault-tolerance system, workgroup switch, router, network cloud, multilayer switch, eMac, IP phone,
Used Solutions

Local area network (LAN). Computer and Network Examples

Local area network (LAN) diagram
A local area network (LAN) is a devices network that connect with each other in the scope of a home, school, laboratory, or office. Usually, a LAN comprise computers and peripheral devices linked to a local domain server. All network appliances can use a shared printers or disk storage. A local area network serve for many hundreds of users. Typically, LAN includes many wires and cables that demand a previously designed network diagram. They are used by IT professionals to visually document the LANs physical structure and arrangement.
ConceptDraw - Perfect Network Diagramming Software with examples of LAN Diagrams. ConceptDraw Network Diagram is ideal for network engineers and network designers who need to draw Local Area Network diagrams.
How to Draw a Computer Network
How to Draw a Computer Network

Ring Network Topology

The Ring Network Topology Diagram examples was created using ConceptDraw DIAGRAM software with Computer and Networks solution.

network topology diagram software, network icons, network diagram template, networking icons available, how to draw a network diagram Computer Network Diagrams

network topology diagram software, network icons, network diagram template, networking icons available, how to draw a network diagram
Computer Network Diagrams solution extends ConceptDraw DIAGRAM software with samples, templates and libraries of vector icons and objects of computer network devices and network components to help you create professional-looking Computer Network Diagrams, to plan simple home networks and complex computer network configurations for large buildings, to represent their schemes in a comprehensible graphical view, to document computer networks configurations, to depict the interactions between network's components, the used protocols and topologies, to represent physical and logical network structures, to compare visually different topologies and to depict their combinations, to represent in details the network structure with help of schemes, to study and analyze the network configurations, to communicate effectively to engineers, stakeholders and end-users, to track network working and troubleshoot, if necessary.
The vector stencils library "Cisco network topology" contains 89 symbols of Cisco network devices and design elements for drawing computer network topology diagrams.
"There are two basic categories of network topologies:
(1) Physical topologies,
(2) Logical topologies.
The shape of the cabling layout used to link devices is called the physical topology of the network. This refers to the layout of cabling, the locations of nodes, and the interconnections between the nodes and the cabling. The physical topology of a network is determined by the capabilities of the network access devices and media, the level of control or fault tolerance desired, and the cost associated with cabling or telecommunications circuits.
The logical topology in contrast, is the way that the signals act on the network media, or the way that the data passes through the network from one device to the next without regard to the physical interconnection of the devices." [Network topology. Wikipedia]
The symbols example "Cisco network topology - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ computer-networks-cisco
Router
Router, router,
Broadband router
Broadband router , broadband router,
Router firewall
Router firewall, router with firewall ,
Wireless router
Wireless router, wireless router,
Workgroup switch
Workgroup switch, workgroup switch,
ATM switch
ATM switch, ATM switch ,
ISDN switch
ISDN switch, ISDN switch,
Multilayer switch
Multilayer switch, multilayer switch ,
Protocol translator
Protocol translator, protocol translator,
Communications server
Communications server, communications server, access server,
Transpath
Transpath, transpath,
Bridge
Bridge, bridge,
Terminal server
Terminal server, terminal server,
Route switch processor
Route switch processor, route switch processor,
Content engine (cache director)
Content engine (cache director), content engine, cache director,
Management engine (ME 1100)
Management engine (ME 1100), Management Engine, ME 1100,
Switch processor
Switch processor, switch processor,
ITP
ITP, ITP,
Voice gateway
Voice gateway, voice gateway,
BBSM
BBSM, BBSM,
ATA
ATA, ATA,
SIP Proxy server
SIP Proxy server, SIP Proxy server,
NetRanger
NetRanger, netranger,
Cisco 1000
Cisco 1000, Cisco 1000,
IP
IP, IP,
System controller
System controller, system controller,
ACE
ACE, ACE,
Directory server
Directory server, directory server,
ADM
ADM, ADM,
Cisco Unity Express
Cisco Unity Express, Cisco Unity Express,
Unity server
Unity server, unity server,
Cisco security
Cisco security, Cisco security,
CallManager
CallManager, callmanager, call manager,
DSLAM
DSLAM, DSLAM,
H.323
H.323, H.323 ,
CDM (Content Distribution Manager)
CDM (Content Distribution Manager), CDM, content distribution manager,
ICM
ICM, ICM,
Access point
Access point, access point,
Wireless bridge
Wireless bridge, wireless bridge,
Wireless connectivity
Wireless connectivity, wireless connectivity,
Guard
Guard, guard,
Mobile access router
Mobile access router, mobile access router,
Carrier Routing System (CRS)
Carrier Routing System (CRS), Carrier Routing System, CRS,
Vault
Vault, vault,
Workstation
Workstation, workstation,
PC
PC, PC,
Macintosh
Macintosh, Macintosh,
Cloud, gold
Cloud, gold, network cloud,
Cloud, white
Cloud, white, cloud,
Cloud, standard color
Cloud, standard color, cloud,
Cisco security management
Cisco security management, security management,
PBX
PBX, PBX,
DPT
DPT, DPT,
Government building
Government building, government building ,
Headquarters, blue
Headquarters, blue, headquarters, generic building,
Router in building
Router in building, router in building,
Man
Man, man,
Woman
Woman, woman,
Workgroup switch, subdued
Workgroup switch, subdued, workgroup switch,
Router, subdued
Router, subdued, router,
File server
File server, file server,
Firewall, horizontal
Firewall, horizontal, firewall,
Firewall, vertical
Firewall, vertical, firewall,
Firewall, vertical, subdued
Firewall, vertical, subdued, firewall,
Lock
Lock, lock,
Key
Key, key,
Lock and key
Lock and key, lock, key, lock and key,
Car
Car, car,
Truck
Truck, truck,
File cabinet
File cabinet, file cabinet,
Breakout box
Breakout box, breakout box,
Breakout box, blue
Breakout box, blue, breakout box,
Host
Host, host,
Relational database
Relational database, relational database, database,
Modem
Modem, modem,
BBS (Bulletin Board System)
BBS (Bulletin Board System), BBS, bulletin board system,
Satellite
Satellite, satellite,
Satellite dish
Satellite dish, satellite dish,
UPS
UPS, UPS,
RPS
RPS, RPS,
MAU
MAU, MAU,
PAD
PAD, PAD,
PAD X.28
PAD X.28, PAD X.28,
Diskette
Diskette, diskette,
Contact center
Contact center, contact center,
Page icon
Page icon, page icon,
Antenna
Antenna, antenna,
Antenna, blue
Antenna, blue, antenna,
Radio tower
Radio tower, radio tower,
Used Solutions

Cisco networking, Cisco network icons, Cisco icon Cisco Network Diagrams

Cisco networking, Cisco network icons, Cisco icon
Cisco Network Diagrams solution extends ConceptDraw DIAGRAM with the best characteristics of network diagramming software. Included samples, templates and libraries of built-in standardized vector Cisco network icons and Cisco symbols of computers, network devices, network appliances and other Cisco network equipment will help network engineers, network designers, network and system administrators, as well as other IT professionals and corporate IT departments to diagram efficiently the network infrastructure, to visualize computer networks topologies, to design Cisco computer networks, and to create professional-looking Cisco Computer network diagrams, Cisco network designs and schematics, Network maps, and Network topology diagrams in minutes.

rack, rack mount, rack solutions, server rack Rack Diagrams

rack, rack mount, rack solutions, server rack
The Rack Diagrams solution, including a vector stencil library, a collection of samples and a quick-start template, can be useful for all who deal with computer networks. Choosing any of the 54 library's vector shapes, you can design various types of Rack diagrams or Server rack diagrams visualizing 19" rack mounted computers and servers.

How to Draw a Computer Network Diagrams

How to Draw a Computer Network Diagrams
Computer and Networks Drawing Solution of ConceptDraw Solution Park, which includes: Extended Cisco libraries, Wireless network, New Interactive Voice Response libraries, Rack diagram library and template objects.

Cisco Design

Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park provides 14 libraries with 450 ready-to-use predesigned vector objects that can be used for quickly and easily drawing the professional Cisco Network Diagrams.