Giới thiệu về IP version 6

... OE&|FOÔSxDFK,3wÊDFK,3FKLDUDOS$%&'(+LQWL~GQJKWOS$%YJQKWOS&FÔQOS'Y(7êFKằFLQWHUQHW~DQJ~GQKFKRPãF~ÂFKNKFNK{QJSKyQQzQFKảQJWDFKQJKLzQFằXOS~X 162 4class a :0class b 10 class c 110net id host idnet idhost idnet idhost id 1328octet 1octet 4octet 3octet 2 8 162 4321 1 1 0Class d 8 162 4321 1 1 1 0class e 4XDFXWU¶FFFO±S~£DFK,3FK¶QJWDF§QKQ[WVDX%LWQKQGQJOQKºQJELW~XWLzQF´DO±S$OF´DO±S%OF´DO±S&O/S'FĐELW~XWLzQ~QKQGQJOFÔQOS(FĐEÂW~XWLzQ~QKQGQJOwÊDFKOS$wÊDFKPQJÂWY~ÊDFKP\FKWUzQWáQJPQJQKLXwÊDFKOS%wÊDFKPQJYáDSKLY~ÊDFKP\FKWUzQWáQJPQJYáDSKLwÊDFKOS&wÊDFKPQJQKLX~ÊDFKP\FKWUzQWáQJPQJÂWiD ... 4XDFXWU¶FFFO±S~£DFK,3FK¶QJWDF§QKQ[WVDX%LWQKQGQJOQKºQJELW~XWLzQF´DO±S$OF´DO±S%OF´DO±S&O/S'FĐELW~XWLzQ~QKQGQJOFÔQOS(FĐEÂW~XWLzQ~QKQGQJOwÊDFKOS$wÊDFKPQJÂWY~ÊDFKP\FKWUzQWáQJPQJQKLXwÊDFKOS%wÊDFKPQJYáDSKLY~ÊDFKP\FKWUzQWáQJPQJYáDSKLwÊDFKOS&wÊDFKPQJQKLX~ÊDFKP\FKWUzQWáQJPQJÂWiD FK 9QJ pD FK 6 PuQJ WL pD 6 Pt\ FK WL pDOS Oô WKX\W VÔ GÂQJ WUlQ WÊQJ PuQJ$ Wá~Q % Wá~Q &Wá~Q 'Wá~Q.K{QJSKyQ(Wá~Q.K{QJSKyQiD FK 9QJ pD FK %LW QKQ GuQJ 6 ELW GQJ pOS VÔ GÂQJ ... NKLQLPOLzQTXDQWLYLFSKyQ~ÊDFKFFPQJFRQ'HIDXOW0DVN*LWUÊWUQ~ÊDFKPQJ~}F~ÊQKQJKĂDWU}FFKRWáQJOS~ÊDFK$%&7KẳFFKWOJLWUÊWKSSKyQFDRQKWNKLWWFELW~XEQJWURQJFF2FWHWGQKFKR~ÊDFKPQJ1HW,''HIDXOW0DVN /S$ /S% /S& 6XEQHW0DVNJLWUÊWUQFDWáQJPQJFRQ6XEQHW0DVNONWKSFD'HIDXOW0DVNYLJLWUÊWKSSKyQFDRQKWFDFFELWO\WáFF2FWHWFD~ÊDFKP\FKVDQJSKQ~ÊDFKPQJ~WR~ÊDFKPQJFRQ6XEQHW0DVNEDRJLđFàQJ~LNPYL~ÊDFKPQJWLzXFKXQ...

... requirement. IP does have something similar: the type of service (ToS) field in IPv4or the priority field in IPv6. Both fields have codes that specify differentlevels of loss treatment. In addition, in IP ... achievingjust that.BUFFERING IN ATM SWITCHES AND IP ROUTERSBoth IP and ATM networks move data about in discrete units. Networknodes, whether handling ATM cells or IP packets, have to merge trafficstreams ... 0-470-84 166 -4 (Electronic)BUFFER MANAGEMENT11traffic. The Integrated Services Architecture (ISA), Resource ReservationProtocol (RSVP), Differentiated Services (DiffServ), and MultiprotocolLabel...

... bufferLocation: Chapter 9, page 1 46 Model: multiple ON–OFF sources – excess-rate analysisUse: combined burst-scale loss and delay analysis – suitable for IP andATM scenarios with multiple flows (e.g. RSVP), ... bufferCLP – loss probabilityLocation: Chapter 9, page 1 36 Model: multiple ON–OFF sources – bufferless analysisUse: burst-scale loss model for IP or ATM – for delay-sensitive traffic,or, combined ... Chapter 11, page 183Model: multiple ON–OFF sources – excess-rate analysisUse: token bucket configuration for traffic conditioning of aggregate IP flowsFormulas: see multiple ON–OFF sources – excess-rate...

... Suppose24 calls are unsuccessful, then c D 240, ccD 2 16, and clD 24. ThusA D240 ð 324 ð 60 D 0.5EL D24 ð 324 ð 60 D 0.05 EC D2 16 ð 324 ð 60 D 0.45 ELater in this chapter we will introduce ... of 1 .6 E. If all 10 circuits are put together intoone group, then 3.1 E can be offered for the same probability of blockingof 0.001. In the first case the offered trafficpercircuitis0.16E;inthesecond ... larger the group of circuits, the better thecircuit loading efficiency.00.10.20.30.40.50 .6 01234 56 Offered trafficAverage offered trafficper circuit B = 0.02B = 0.01B = 0.005B = 0.001Figure...

... CBR connections multiplexed together, we obtain the following:twDwD0.422 166 66 7D 2.532µsThe average time in the system is thentqD twC s D 2.532 C 2.831 D 5. 363 µsAnother way ... meanservice time, i.e. D  Ð sfor a single-server queue. With one thousand 64 kbit/s CBR sources, thearrival rate is 166 66 7 cell/s. We have calculated that the service time of acell is 2.831µs, ... SchormansCopyright © 2000 John Wiley & Sons LtdISBNs: 0-471-49187-X (Hardback); 0-470-84 166 -4 (Electronic) 66 PERFORMANCE EVALUATIONimportant to real-time services, e.g. voice and video. Little’s...

... sequence of burstsof cells. Such traffic sources, based on a cell-rate description are coveredin Chapter 6. The multiplexing of bursts from different sources through an ATMbuffer has to take ... SchormansCopyright © 2000 John Wiley & Sons LtdISBNs: 0-471-49187-X (Hardback); 0-470-84 166 -4 (Electronic)78FUNDAMENTALS OF SIMULATIONAell rateTimeA burst offixed cell rateAn event ... is:FUNCTION U = generate random numberx := 171 Ð x mod30 269 y := 172 Ð y mod30307z := 170 Ð z mod30323U := x/30 269  + y/30307 + z/30323temp := truncUU := U — tempEND...

... Geometric  166 667 Ð 2.831 Ð 10 6 , jFigure 6. 6. A Comparison of Negative Exponential and Geometric Distributions,and the Mathcad Code to Generate x, y Values for Plotting the Graph 86 TRAFFIC ... shown in Figure 6. 4for a load of 47.2% (i.e. the 1000 CBR source example from Chapter 4). Thearrival rate is 166 66 7 cell/s which corresponds to an average inter-arrivaltime of 6 µs. The cell ... 2.5e−005Time0.010.11F(t)F,t :D 1  eÐti:D 1 250x1i:D i Ð 107y1i:D F 166 667 , x1ij:D 1 8x2j:D j Ð 2 Ð 831 Ð 10 6 y2j:D 1Figure 6. 4. Graph of the Negative Exponential Distribution for a Load...