Lectures notes for 2010 - KTH
Lectures notes for 2010 - KTH Lectures notes for 2010 - KTH
How does this avoid the “B-ISDN debacle”? Internetworking is completely different from the B-ISDN: • Rather than a single cell based circuit switched network - the focus is on interconnecting networks via a common network layer protocol • Lots of products and lots of vendors selling these products • note: there is significant competition with a very fast development cycle • The technology is “good enough” vs. trying to be an improved version of ISDN (think of examples from Clayton Christianson’s The Innovator’s Dilemma: When New Technologies Cause Great Firms to Fail [23]) • It exploits the very rapid advances at the edge of the network - which the users pay for! • Encourages both cooperation by different network operators and competition between different network operators! ⇒ network connectivity as a commodity using commodity products to deliver a wide range of services Maguire How does this avoid the “B-ISDN debacle”? 1: 25 of 104 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
Internetworked Architecture H … MH AP H … R WLAN R switch WAN FDDI R switch Token Ring R switch IWU Ethernet LANs switch R BTS BSC … … MH Cellular networks R IWU MSC HLR/VLR MH Ad hoc PAN MH MH PSTN Figure 2: Internet and PSTN ⇒ Multiple network technologies - internetworked together • Facilitates disaggregation - since functionality can be located anywhere on the internet • Note that some of the routers act as gateways between different types of networks. Maguire Internetworked Architecture 1: 26 of 104 maguire@kth.se 2010.03.21 Internetworking/Internetteknik
- Page 17 and 18: Problems with multiple connections.
- Page 19 and 20: Module 6: SCTP ....................
- Page 21 and 22: Module 7: Dynamic Routing .........
- Page 23 and 24: BGP Open Message ..................
- Page 25 and 26: IGMP Implementation Details........
- Page 27 and 28: Capacity Assignment ...............
- Page 29 and 30: Network Management Systems ........
- Page 31 and 32: Module 10: IPv6 ...................
- Page 33 and 34: Why IPv6? .........................
- Page 35 and 36: Wireless WANs . . . . . . . . . . .
- Page 37 and 38: Module 12: IPSec, VPNs, Firewalls,
- Page 39 and 40: Module 13: Future and Summary......
- Page 41 and 42: Peer to peer networking ...........
- Page 43 and 44: Module 14: Some exercises..........
- Page 45 and 46: Welcome to the Internetworking cour
- Page 47 and 48: Goals, Scope and Method Goals of th
- Page 49 and 50: Learning Outcomes Following this co
- Page 51 and 52: Prerequisites • Datorkommunikatio
- Page 53 and 54: Topics • What an internet is and
- Page 55 and 56: Grades: A..F (ECTS grades) • To g
- Page 57 and 58: Written Assignment Goal: to gain an
- Page 59 and 60: Literature The course will mainly b
- Page 61 and 62: Lecture Plan Subject to revision!
- Page 63 and 64: Context of the module Communication
- Page 65 and 66: How can we deal with all of these d
- Page 67: Basic concepts open-architecture ne
- Page 71 and 72: Trends: Shifting from traditional t
- Page 73 and 74: IP traffic growing exponentially! T
- Page 75 and 76: Growth rates Some people think the
- Page 77 and 78: Increasing Data Rates “Ethernet
- Page 79 and 80: The Internet Today Local … Local
- Page 81 and 82: Implicit vs. Explicit Information V
- Page 83 and 84: Encapsulation Appl header user data
- Page 85 and 86: • Transport layer • Port number
- Page 87 and 88: IP “Protocol” field (RFC 1700)
- Page 89 and 90: Decimal Keyword Protocol References
- Page 91 and 92: Decimal Keyword Protocol References
- Page 93 and 94: Decimal Keyword Protocol References
- Page 95 and 96: Basic communication mechanism: data
- Page 97 and 98: Common Used Simple Services Name TC
- Page 99 and 100: Simple Campus Network WAN ISP’s r
- Page 101 and 102: How important are switches vs. rout
- Page 103 and 104: Ethernet Encapsulation (RFC 894) DS
- Page 105 and 106: IEEE 802 Numbers of Interest “…
- Page 107 and 108: SLIP Problems ⇒CSLIP ≡ Compress
- Page 109 and 110: PPP: Point to Point Protocol PPP (R
- Page 111 and 112: PPP summary • support for multipl
- Page 113 and 114: Loopback interface summary • loop
- Page 115 and 116: Using VIF for tunneling TCP UDP ...
- Page 117 and 118: Figure 16: Start the program, then
How does this avoid the “B-ISDN debacle”?<br />
Internetworking is completely different from the B-ISDN:<br />
• Rather than a single cell based circuit switched network - the focus is<br />
on interconnecting networks via a common network layer protocol<br />
• Lots of products and lots of vendors selling these products<br />
• note: there is significant competition with a very fast development cycle<br />
• The technology is “good enough” vs. trying to be an improved version<br />
of ISDN (think of examples from Clayton Christianson’s The Innovator’s<br />
Dilemma: When New Technologies Cause Great Firms to Fail [23])<br />
• It exploits the very rapid advances at the edge of the network - which<br />
the users pay <strong>for</strong>!<br />
• Encourages both cooperation by different network operators and<br />
competition between different network operators!<br />
⇒ network connectivity as a commodity using commodity products to deliver a<br />
wide range of services<br />
Maguire How does this avoid the “B-ISDN debacle”? 1: 25 of 104<br />
maguire@kth.se <strong>2010</strong>.03.21 Internetworking/Internetteknik
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