Lectures notes for 2010 - KTH
Lectures notes for 2010 - KTH Lectures notes for 2010 - KTH
Intranet Telephone System On January 19, 1998, Symbol Technologies and Cisco Systems announced that they had combined the Symbol Technologies’ NetVision wireless LAN handset and Cisco 3600 to provide a complete wireless local area network telephone system based on Voice-Over-IP technology. (White Paper) The handset use wireless LAN (IEEE 802.11) infrastructure and a voice gateway via Cisco 3600 voice/ fax modules. The system conforms to H.323. "I believe that this is the first wireless local area network telephone based on this technology" -- Jeff Pulver Seamless roaming via Symbol’s pre-emptive roaming algorithm with load balancing. Claim each cell can accommodate ~25 simultaneous, full-duplex phone calls. Current Ericsson is a partner with Symbol, using Ericsson’s WebSwitch2000 Maguire Intranet Telephone System 9: 47 of 71 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
“The wireless workplace will soon be upon us 1 Wireless LANs Telia has strengthened its position within the area of radio-based data solutions through the acquisition of Global Cast Internetworking. The company will primarily enhance Telia Mobile’s offering in wireless LANs and develop solutions that will lead to the introduction of the wireless office. A number of different alternatives to fixed data connections are currently under development and, later wireless IP telephony will also be introduced. … The acquisition means that Telia Mobile has secured the resources it needs to maintain its continued expansion and product development within the field of radio-based LAN solutions. Radio LANs are particularly suitable for use by small and medium-sized companies as well as by operators of public buildings such as airports and railway stations. Today’s radio-LAN technology is based on inexpensive products that do not require frequency certification. They are easy to install and are often used to replace cabled data networks in, for example, large buildings. …” [emphasis added by Maguire] 1. Telia press annoucement: 1999-01-25 Maguire Wireless LANs 9: 48 of 71 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
- Page 571 and 572: Argument against Reservation Given,
- Page 573 and 574: This lecture we have discussed: •
- Page 575 and 576: [13] B. Fenner and D. Meyer (Editor
- Page 577 and 578: • Network Management • SNMP •
- Page 579 and 580: Network Management Process Network
- Page 581 and 582: Version 1 SNMP Version 2 - in 1992-
- Page 583 and 584: SNMP • SNMPv1 • only 5 commands
- Page 585 and 586: Case Diagram To understand the rela
- Page 587 and 588: Remote MONitoring (RMON) [ RMON MIB
- Page 589 and 590: RMON1 Statistics Information collec
- Page 591 and 592: EtherStatsEntry ::= SEQUENCE { ethe
- Page 593 and 594: HostEntry ::= SEQUENCE { HostEntry
- Page 595 and 596: The Matrix Group Matrix group consi
- Page 597 and 598: Information collected from network
- Page 599 and 600: Network Management Systems • HP O
- Page 601 and 602: • Web based Interfaced Management
- Page 603 and 604: DMI 2.0 has three groups: • Compo
- Page 605 and 606: Common Information Model (CIM) •
- Page 607 and 608: Inter-domain Management task force
- Page 609 and 610: Applications • E-mail • E-mail
- Page 611 and 612: Deregulation ⇒ New regulations
- Page 613 and 614: Latency 1 Usability FAX relay/broad
- Page 615 and 616: Voice Gateway 2B+D or 30B+D or …
- Page 617 and 618: Fax Support Both store-and-forward
- Page 619 and 620: Cisco Voice Over IP Enables Cisco 3
- Page 621: 2,400/4,800/7,200/9,600/14,400 bps
- Page 625 and 626: Carriers offering VOIP “Equant, a
- Page 627 and 628: Economics "Can Carriers Make Money
- Page 629 and 630: Patents Mixing voice and data in th
- Page 631 and 632: Deregulation ⇒ Trends • replaci
- Page 633 and 634: RTP: Real-Time Transport Protocol D
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- Page 637 and 638: SIP Invite 1 INVITE sip:bob@biloxi.
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- Page 641 and 642: ENUM IETF’s E.164 Number Mapping
- Page 643 and 644: Web Services Using protocols built
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- Page 649 and 650: Internet Protocol Version 6 (IPv6)
- Page 651 and 652: • Wireless computers • supporti
- Page 653 and 654: Device Control • Control everyday
- Page 655 and 656: IPv6 header format version 4 bits C
- Page 657 and 658: Simplifications IPv6 builds on 20 y
- Page 659 and 660: Payload length Payload length is th
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“The wireless workplace will soon be upon us 1<br />
Wireless LANs<br />
Telia has strengthened its position within the area of radio-based data solutions through the<br />
acquisition of Global Cast Internetworking. The company will primarily enhance Telia<br />
Mobile’s offering in wireless LANs and develop solutions that will lead to the introduction of<br />
the wireless office. A number of different alternatives to fixed data connections are currently<br />
under development and, later wireless IP telephony will also be introduced.<br />
…<br />
The acquisition means that Telia Mobile has secured the resources it needs to maintain its<br />
continued expansion and product development within the field of radio-based LAN solutions.<br />
Radio LANs are particularly suitable <strong>for</strong> use by small and medium-sized companies as well as by<br />
operators of public buildings such as airports and railway stations.<br />
Today’s radio-LAN technology is based on inexpensive products that do not require frequency<br />
certification. They are easy to install and are often used to replace cabled data networks in,<br />
<strong>for</strong> example, large buildings.<br />
…”<br />
[emphasis added by Maguire]<br />
1. Telia press annoucement: 1999-01-25<br />
Maguire Wireless LANs 9: 48 of 71<br />
maguire@kth.se <strong>2010</strong>.03.21 Internetworking/Internetteknik