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"There are two definitions for wireless LAN roaming:
Internal Roaming (1): The Mobile Station (MS) moves from one access point (AP) to another AP within a home network because the signal strength is too weak. An authentication server (RADIUS) performs the re-authentication of MS via 802.1x (e.g. with PEAP). The billing of QoS is in the home network. A Mobile Station roaming from one access point to another often interrupts the flow of data among the Mobile Station and an application connected to the network. The Mobile Station, for instance, periodically monitors the presence of alternative access points (ones that will provide a better connection). At some point, based on proprietary mechanisms, the Mobile Station decides to re-associate with an access point having a stronger wireless signal. The Mobile Station, however, may lose a connection with an access point before associating with another access point. In order to provide reliable connections with applications, the Mobile Station must generally include software that provides session persistence.
External Roaming (2): The MS (client) moves into a WLAN of another Wireless Internet Service Provider (WISP) and takes their services (Hotspot). The user can independently of his home network use another foreign network, if this is open for visitors. There must be special authentication and billing systems for mobile services in a foreign network." [Wireless LAN. Wikipedia]
This Cisco roaming wireless local area network diagram example 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.
WLAN diagram
WLAN diagram, wireless connectivity, smartphone, network cloud, multilayer switch, laptop, computer, notebook, laptop computer, iPhone 4, dual mode access point , access point,

Personal area (PAN) networks. Computer and Network Examples

A Personal area network (PAN) is a computer network that is used for data transmission between different personal devices (computers, telephones, digital devices, etc.) and for connecting to the higher level network and Internet. PANs can be wired with computer buses (USB and FireWire). A wireless personal area network (WPAN) can be made using the network technologies such as Bluetooth, IrDa, UWB, Z-Wave, ZigBee, Body Area Network. A personal area network handles the interconnection of IT devices at the surrounding of a single user. Generally, PAN contains from following such appliances: cordless mice and keyboards, cordless phone, Bluetooth handsets.
This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the Personal area network.

Cisco LAN. Cisco icons, shapes, stencils and symbols

The ConceptDraw vector stencils library Cisco LAN contains symbols for drawing the computer local area network diagrams.
The vector stencils library "Cisco LAN" contains 23 symbols of local area network (LAN) devices and equipment for drawing Cisco LAN topology diagrams.
"Network topology describes the layout of interconnections between devices and network segments. At the Data Link Layer and Physical Layer, a wide variety of LAN topologies have been used, including ring, bus, mesh and star, but the most common LAN topology in use today is switched Ethernet. At the higher layers, the Internet Protocol (TCP/ IP) has become the standard, replacing NetBEUI, IPX/ SPX, AppleTalk and others.
Simple LANs generally consist of one or more switches. A switch can be connected to a router, cable modem, or ADSL modem for Internet access. Complex LANs are characterized by their use of redundant links with switches using the spanning tree protocol to prevent loops, their ability to manage differing traffic types via quality of service (QoS), and to segregate traffic with VLANs. A LAN can include a wide variety of network devices such as switches, firewalls, routers, load balancers, and sensors.
LANs can maintain connections with other LANs via leased lines, leased services, or the Internet using virtual private network technologies. Depending on how the connections are established and secured in a LAN, and the distance involved, a LAN may also be classified as a metropolitan area network (MAN) or a wide area network (WAN)." [Local area network. Wikipedia]
The symbols example "Cisco LAN - 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
Sun workstation
Sun workstation, Sun workstation ,
Workstation
Workstation, workstation,
PC
PC, PC,
Macintosh
Macintosh, Macintosh,
Terminal
Terminal, terminal,
Mini VAX
Mini VAX, mini VAX, VAX, VSM, DECnet,
Printer
Printer, printer,
Laptop
Laptop, laptop,
File server
File server, file server, application server,
Monitor
Monitor, monitor,
Web cluster
Web cluster, Web cluster,
ATM fast gigabit etherswitch
ATM fast gigabit etherswitch, ATM fast gigabit etherswitch,
HP Mini
HP Mini, HP Mini,
Supercomputer
Supercomputer, supercomputer,
LAN2LAN
LAN2LAN, LAN2LAN,
LAN to LAN
LAN to LAN, LAN to LAN,
Web server
Web server, Web server, www server,
Web browser
Web browser, Web browser,
Repeater
Repeater, repeater,
PDA
PDA, PDA,
General appliance
General appliance, general appliance, intelligence engine 2100 series,
PC, blue
PC, blue, PC,
Mini VAX, blue
Mini VAX, blue, mini VAX, VAX, VSM, DECnet,
This wireless network diagram sample shows ultra high performance WLANs.
"A wireless local area network (WLAN) links two or more devices using some wireless distribution method (typically spread-spectrum or OFDM radio), and usually providing a connection through an access point to the wider Internet. This gives users the ability to move around within a local coverage area and still be connected to the network. Most modern WLANs are based on IEEE 802.11 standards, marketed under the Wi-Fi brand name. WLANs were once called LAWNs (for local area wireless network) by the Department of Defense." [Wireless LAN. Wikipedia]
The wireless network diagram example "Ultra high performance WLANs" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Wireless Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
Wireless network diagram
Wireless network diagram, window, switch, router, network cloud, laptop computer, notebook, firewall, door, coverage, cellular phone, mobile phone, Wi-Fi access, Smart Wi-Fi access point, Smart WLAN controller, wireless services gateway, Active Directory Server,

Internet Connectivity. Computer and Network Examples

The Internet Connectivity of the computers, mobile devices, computer networks to the Internet enables the users to access the various Internet services. There are many ways and technologies of the connection to the Internet with different data signaling rates: Wireless, Ethernet cable, Optical fiber, Dial-up, DSL, broadband Internet access, etc.
This example was created in ConceptDraw DIAGRAM using the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park and shows how the customers connect to ISPs and ISPs connect between the tiers (peering and transit).
The vector stencils library "Wireless networks" contains 82 icon symbols for drawing wireless computer network diagrams and equipment layout plans.
"A wireless network is any type of computer network that uses wireless data connections for connecting network nodes.
Wireless networking is a method by which homes, telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations.
Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure.
Examples of wireless networks include cell phone networks, Wi-Fi local networks and terrestrial microwave networks." [Wireless network. Wikipedia]
The clip art example "Wireless networks - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Wireless Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ wireless-networks
Building 1
Building 1, building,
Building 4
Building 4, building,
Coverage (Blue)
Coverage (Blue), coverage,
Wireless Connectivity
Wireless Connectivity, wireless connectivity,
Network Cloud
Network Cloud, network cloud,
Cloud
Cloud, cloud,
Wi-Fi Access
Wi-Fi Access, Wi-Fi access,
Tree
Tree, tree,
Computer
Computer, computer,
Laptop Computer
Laptop Computer, laptop computer, notebook,
Server
Server, server,
Wireless Network Storage
Wireless Network Storage, wireless network storage,
Router
Router, router,
Wireless Router
Wireless Router, wireless router,
Switch
Switch, switch,
Wireless Access Point
Wireless Access Point, wireless access point,
1U Hub Switch
1U Hub Switch, hub, switch, Ethernet,
2U Hub Switch
2U Hub Switch, hub, switch, Ethernet,
1U Server
1U Server, server,
2U Server
2U Server, server,
3U Server
3U Server, server,
4U Server
4U Server, server,
Outdoor Access Point
Outdoor Access Point, outdoor access point,
Indoor Access Point
Indoor Access Point, indoor access point,
Outdoor Wi-Fi Access Point
Outdoor Wi-Fi Access Point, outdoor Wi-Fi access point,
Access Point
Access Point, access point, bridge, repeater,
Outdoor Mesh Node
Outdoor Mesh Node, outdoor mesh node,
Outdoor Mesh Node
Outdoor Mesh Node, outdoor mesh node,
Outdoor Access Node
Outdoor Access Node, outdoor access node,
Outdoor Access Node
Outdoor Access Node, outdoor access node,
Base Station
Base Station, base station,
Cellular Phone
Cellular Phone, cellular phone, mobile phone,
Outdoor Mesh Node
Outdoor Mesh Node, outdoor mesh node,
Active Directory Server
Active Directory Server, Active Directory Server,
Smart WLAN Controller
Smart WLAN Controller, Smart WLAN controller, wireless services gateway,
Smart WLAN Controller
Smart WLAN Controller, Smart WLAN controller, wireless services gateway,
Smart Wi-Fi Access Point
Smart Wi-Fi Access Point, Smart Wi-Fi access point,
Indoor Wi-Fi Access Point
Indoor Wi-Fi Access Point, indoor Wi-Fi access point,
Firewall
Firewall, firewall,
Coverage (Yellow)
Coverage (Yellow), coverage,
Coverage (O-Shaped)
Coverage (O-Shaped), coverage,
Outdoor Mesh Node
Outdoor Mesh Node, outdoor mesh node,

Network Components

Drawing the network diagrams is a complex process which requires a lot of efforts, time and artistic abilities. ConceptDraw DIAGRAM offers the Network Layout Floor Plans Solution from the Computer and Networks Area with variety of predesigned network components for drawing network layout floor plans in minutes.
"A wireless network is any type of computer network that uses wireless data connections for connecting network nodes. Wireless networking is a method by which homes, telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure. Examples of wireless networks include cell phone networks, Wi-Fi local networks and terrestrial microwave networks." [Wireless network. Wikipedia]
This wireless router network diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
Network diagram
Network diagram, workstation, wireless router, webcam, web camera, modem, laptop computer, inkjet printer, iPhone 4, home theater, disk, digital camera, desktop PC, cloud, Web-camera, MP3 player, DVD player,
"A local area network (LAN) is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building using network media. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their smaller geographic area, and non-inclusion of leased telecommunication lines. Ethernet over twisted pair cabling, and Wi-Fi are the two most common technology standards currently used to build LANs." [Local area network. Wikipedia]
This local area network (LAN) topology diargam example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
LAN topology diagram
LAN topology diagram, wireless router, switch, server, scanner, router, radio waves, laptop computer, inkjet printer, iPhone 4, desktop PC, cloud, IP phone,

Wireless Network Drawing

The Wireless Network solution helps users to quickly transition from an idea to the implementation of a wireless computer network.
ConceptDraw DIAGRAM is well placed to provide experienced and comprehensive assistance in the workplace.
The vector stencils, examples, and templates included to solution is a strong toolset for network engineer.

Wireless Networking for Mac

ConceptDraw DIAGRAM is a Wireless Network Drawing Mac OS software.

Network Gateway Router

Use ConceptDraw DIAGRAM diagramming and vector drawing software enhanced with Computer and networks solution to draw different types of network diagrams: physical layout and topology, LAN and WAN, Cisco, Apple, Wi-Fi wireless and Ethernet wired networks, etc.
Special libraries of highly detailed, accurate shapes and computer graphics, servers, hubs, switches, printers, mainframes, face plates, routers etc.

Office - Design Elements

Designing a workspace or office involves careful consideration of form and function. Conceptdraw offers you all nessesary office design elements in one library. Combine, match, design and create!

Cisco Network Design. Cisco icons, shapes, stencils, symbols and design elements

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.