PPT-Discovery and DNS Mike Freedman COS 461: Computer

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Discovery and DNS Mike Freedman COS 461 Computer Networks httpwwwcsprincetoneducoursesarchivespr20cos461 httpmosaiccnfoliocomB101CW2011Article581 Relationship Between

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Discovery and DNS Mike Freedman COS 461: Computer: Transcript

Discovery and DNS Mike Freedman COS 461 Computer Networks httpwwwcsprincetoneducoursesarchivespr20cos461 httpmosaiccnfoliocomB101CW2011Article581 Relationship Between Layers 2 logical link name Routing Mapping Link to. cos eV RF RF RF RF RF RF RF RF RF RF eV eV cos cos cos cos RF RF RF RF RF eV eV eV RF RF RF RF RF RF RF eV eV cos cos cos 66 65 RF RF RF RF RF eV eV cos sin 66 65 5666 566 56 56 566 56 66 65 66 Theabovecalculationalsoallowsustoobtain~J2,~J2=J2z+1 2(J+J+JJ+)=(jhcos)2+1 2q jh(1+cos)(jh(1cos)+h)q jh(1+cos)q jh(1cos)(jh(1+cos)+h)q jh(1cos)=j(j+1)h2:(25)3.3WaveFunctionsWe 20.sin(+)=sincos+sincos21.sin()=sincossincos22.cos(+)=coscossincos23.cos()=coscos+sincos24.tan(+)=tan+tan 1tantan25.tan()=tantan 1+tantanDoubleAngl 1+x=1+x=2+O(x2):E(x;l)=E0"cos 2l + lxd 22!+cos 2l + lx+d 22!#=2E0cos2l +2 lx2+d2 4cos2d lxwherewealsousedcos+cos=2cos+ 2cos 2.Theoscillatorydependenceonxofthemeasur M(i)sin1002+sin(i) N(i)cos(i)sin1002A12=NPi=1sin2(i)sin(i)cos(i) (M(i)sin100)2sin(i)cos(i) (N(i)cos(i)sin100)2A13=NPi=1sin(i)cos(i)cos(i) (M(i)sin100)2A22=NPi=1sin(i)sin(i) M( @x=sincos@ @x=coscos r@ @x=sin rsin@r @y=sinsin@ @y=cossin r@ @y=cos rsin@r @z=cos@ @z=sin rThepositionvectorR=xi+yj+zkiswrittenR=rer:(sphericalcoordinates)IfR=R(t)isaparameterize 5,461,4395,461,4395,461,4395,461,4395,461,4395,461,4395,461,4395,461,4395,461,439 2,514,4782,514,4782,514,4782,514,4782,514,4782,514,4782,514,4782,514,4782,514,478 2,084,9302,084,9302,084,9302,084,930 Port numbers for applications. MAC addresses for . hardware. IP . addresses for a way to send data in a smart, routable way. Addressing So Far. Problems with MACs/IPs/Ports. Humans . are . bad at. remembering strings of numbers. 1. Topic. How do nodes share a single link? Who sends when, e.g., in . WiFI. ?. Explore with a simple model. Assume no-one is in charge; this is a distributed system. CSE 461 University of Washington. 1. Topic. How do nodes share a single link? Who sends when, e.g., in . WiFI. ?. Explore with a simple model. Assume no-one is in charge; this is a distributed system. CSE 461 University of Washington. 1. Topic. How do nodes share a single link? Who sends when, e.g., in . WiFI. ?. Explore with a simple model. Assume no-one is in charge; this is a distributed system. CSE 461 University of Washington. Applications. Updated 2-10-15. History. On ARPANet, host names were mapped to IP addresses in a . hosts.txt . file stored on a single master server. Other machines downloaded copies of . hosts.txt . periodically. COS 461: Computer Networks. http://. www.cs.princeton.edu. /courses/archive/spr20/cos461/. http://mosaic.cnfolio.com/B101CW2011Article581. Relationship Between Layers. 2. logical link . name . Routing: Mapping . Making Windows DNS Server Cloud Ready. ~Kumar Ashutosh, Microsoft. Windows DNS Server. Widely deployed in enterprises . Fair presence in the DNS resolver . space. Standards compliant and interoperable.

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