Transcript Network Management and Mobility

Lecture 3
Network Management and
Mobility
Networked Devices
• Networked devices are devices that communicat
e with a network.
• Technologies include laptops, PDAs, cell and sma
rtphones, wikis, intranets, and extranets, GPSs, P
OS terminals, and RFID which allow information t
o be rapidly collected, processed, shared, and ac
ted upon for competitive survival and advantage
taking.
• Feature-rich wireless devices make collaboration
easier and more productive which indicates a m
ore integrated, always-connected business enviro
nment and lifestyle.
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Apple – Famous for its Creative
Connectivity – iPhone……
4G, LTE -> More comming
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Information on Internet Bulletin Boards,
Newsgroups, and Social Networking
Sites
Click to PCWorld Business
Center article for more….
Social Networks Go to
Work
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Social Networking Shrinks the World
• Social networking via mobile phones is shrinking
the world to the size of a small screen.
• Micro-blogging is the sending of messages up t
o 140 characters.
• With more than 3 billion mobile handsets in use
in the world (1 for every 2 people on the planet)
a powerful force for changes in business and col
laboration as well as politics and societies have e
merged.
• News media, universities, public safety, and othe
r organizations are using the technology to deliv
er information to a wide audience quickly.
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4.1 Business Networks
Business networks support 4 basic functions:
1. mobility
2. collaboration
3. relationships
4. Search
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Network basics
Figure 4.2 A signal is transmitted from a sender/source to a
receiver/destination via circuit or packet switching.
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Network Terminology
• Bandwidth: Throughput capacity or speed of a network.
• Protocol: Standards that govern how networked devices
exchange information.
• TCP/IP: Transmission control protocol/Internet Protocol)
are a suite of Internet protocols.
• Broadband: Short for broad bandwidth.
– Fixed-line broadband: Cable or DSL Internet connections.
– Mobile broadband: Wireless high-speed Internet access throug
h a portable modem, phone, or other device.
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4.2 Wireless Broadband Networks
• Enterprises are moving away from unsystematic
adoption of mobile devices and infrastructure to a
strategic build-out of mobile capabilities.
• Mobile infrastructure consists of technology,
software, support, security measures, and devices
to manage and deliver wireless communications.
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4.3 Networks Management and P
ortals
• When the network goes down or access is blocked, so
does the ability to operate or function.
• Damages when a company cannot operate or fulfill orders
include:
– lost sales and productivity
– Inability to send and receive payments
– inability to process payroll and inventory
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TCP/IP Networks
• The Internet protocol suite consists of the IP (Internet
Protocol) and TCP (Transport Control Protocol), or
TCP/IP.
• In preparation for transmission, data are digitized into
packets and sent via packet-switched networks, local
area networks (LAN), or wide area networks (WAN).
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Discovery
Discovery allows users to browse and
search data sources, in all topic areas, on
the Web.
– Search engines
– Metasearch engines
– Discovery of material in foreign languages
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Four Largest Search Engines
Google
Yahoo
Microsoft Network
Ask
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Metasearch Engines
Surf-Wax
Metacrawler
Mamma
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Publication of Material in Foreign
Languages
Translation products include:
– Altavista
– Google
– Trados
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Network Computing Infrastructures
• Intranets: a network serving the internal
informational needs of a company.
• Extranets: private, company-owned network that uses
IP technology to securely share part of a business’s
information or operations with suppliers, vendors,
partners, customers, or other businesses.
• Extranets can use virtual private networks (VPNs). VPN
s are created using specialized software and hardware
to encrypt/send/decrypt transmissions over the
Internet.
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Figure 4.7 Virtual Private Network (VPN)
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4.4 Collaboration
Messaging and collaboration tools include:
• older communications media such as email, videoconferencing, fax, and IM
• newer media such as blogs, podcasts, RS
S, wikis, VoIP, Web meetings, and torrent
s (for sharing very large files)
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Collaboration….contd.
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Virtual collaboration
Workflow technologies
Groupware
Teleconferencing
Videoconference
Web conferencing
Real-time collaboration tools
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Workflow and Groupware Technologies
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Telepresence Systems
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Leading Telepresence Systems
Cisco Telepresence 3000
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Collaboration Support Technologi
es
• Portals, intranets, extranets, and shared
workspaces are examples.
• Web 2.0 or Enterprise 2.0 technologies such as
wikis, blogs and microblogs, provide more
options to promote and support enterprise
collaboration.
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Minicase :
Wikis, Blogs, and Chats Support Collaboration at
DrKW
Wikis used in business
continue to grow.
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Wild About Wikis
By Rachael King
• Intel, Motorola, Sony—they're among
the companies using Webcollaboration tools to promote
products and foster teamwork among
employees
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Wikis are Web-based tools that make it
easy for users to add, remove, and change
online content. Employees at companies
such as Intel, Motorola, IBM, and Sony use
them for a host of tasks, from setting
internal meeting agendas to posting
documents related to new products.
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Many companies rely on wikis to engage
customers in ongoing discussions about
products. Wikis for Motorola and T-Mobile
handsets serve as continually updated user
guides. TV networks including ABC and
CBS are creating fan wikis that let viewers
interact with each other as they unravel
mysteries from such shows as Lost and CSI:
Crime Scene Investigation. Read about
these and other ways companies are
warming to wikis. A link is included where
the wiki is open to the public.
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