Internet Exchange Points (IXPs)

More documents

Recommendations

Info

How should the Internet evolveto better support multimedia?Integrated services philosophy:Fundamental changes inInternet so that apps canreserve end-to-endresourcesincluding bandwidthRequires new, complexsoftware in hosts & routersLaissez-faire: No major changesMore bandwidth whenneededContent distribution,application-layer multicastApplication layerDifferentiated servicesphilosophy:Fewer changes to Internetinfrastructure, yet provide1st and 2nd class service
Improving QOS in IP NetworksThus far: “making the best of best effort”Future: next generation Internet with QoSguarantees RSVP: signaling for resource reservations Differentiated Services: differential guarantees Integrated Services:firm guarantees simple modelfor sharing andcongestionstudies:
Page 1:
Internet Exchange Points (IXPs)
Page 4 and 5:
What is an Exchange Point Network A
Page 6 and 7:
Internet Exchange PointWhy peer? Co
Page 8 and 9:
Internet Exchange PointWhy peer? Mu
Page 10 and 11:
Internet Exchange PointWhy peer? So
Page 12 and 13:
Faculty Qualifications—PN• ONLY
Page 14 and 15:
Internet Exchange PointWhy peer? Pe
Page 16 and 17:
Internet Exchange Point SolutionEve
Page 18 and 19:
Why use an IXP? PEERING Shared medi
Page 20 and 21:
Why use an IXP? SAVES MONEY!!! Traf
Page 22 and 23:
Exchange Point DesignISP 6ISP 5 ISP
Page 24 and 25:
Peering at an IXP Each participant
Page 26 and 27:
Exchange Point examples LINX in Lon
Page 28 and 29:
DHCP: Dynamic HostConfiguration Pro
Page 30 and 31:
DHCP client-server scenarioDHCP ser
Page 32 and 33:
Computers use IP addresses.Why do w
Page 34 and 35:
hosts.txt does not scale✗ Huge fi
Page 36 and 37:
DNS is Hierarchical.(root)/ (root)u
Page 38 and 39:
DNS: iterated queriesroot name serv
Page 40 and 41:
Domain Names are (almost)unlimited
Page 42 and 43:
Commonly seen ResourceRecords (RRs)
Page 44 and 45:
Possible results from a Query POSIT
Page 46 and 47:
DNS is a Client-Serverapplication (
Page 48 and 49:
Three roles in DNS RESOLVERTakes re
Page 50 and 51:
ROLE 1: THE RESOLVER A piece of sof
Page 52 and 53:
How do you choose whichcache(s) to
Page 54 and 55:
Example: Unix resolverconfiguration
Page 56 and 57:
The trailing dot# dig lboro.ac.uk.
Page 58 and 59:
Understanding output from dig STATU
Page 60 and 61:
DNS recordsDNS: distributed db stor
Page 62 and 63:
DNS protocol, messagesName, type fi
Page 64 and 65:
HTTP overviewHTTP: hypertext transf
Page 66 and 67:
HTTP connectionsNonpersistent HTTP
Page 68 and 69:
Nonpersistent HTTP (cont.)5. HTTP c
Page 70 and 71:
Persistent HTTPNonpersistent HTTP i
Page 72 and 73:
HTTP request message:general format
Page 74 and 75:
Method typesHTTP/1.0 GET POST HEADa
Page 76 and 77:
HTTP response messagestatus line(pr
Page 78 and 79:
Trying out HTTP (client side) for y
Page 80 and 81:
Cookies: keeping “state” (cont.
Page 82 and 83:
User-server interaction:authorizati
Page 84 and 85:
Web caches (proxy server)Goal: sati
Page 86 and 87:
Content distribution networks(CDNs)
Page 88 and 89:
FTP(File Transfer Protocol)
Page 90 and 91: FTP: separate control, data connect
Page 92 and 93: E-Mail(SMTP, POP, IMAP)
Page 94 and 95: Electronic MailMail Serversmailbox
Page 96 and 97: Scenario: Alice sends messageto Bob
Page 98 and 99: Try SMTP interaction foryourself: t
Page 100 and 101: Mail message formatSMTP: protocol f
Page 102 and 103: MIME typesContent-Type: type/subtyp
Page 104 and 105: POP3 Short for Post Office Protocol
Page 106 and 107: POP3 (more) and IMAPMore about POP3
Page 108 and 109: POP3 vs IMAPWith IMAP, all your mai
Page 110 and 111: EximExim is an open source mail tra
Page 112 and 113: NAT: Network AddressTranslation Mot
Page 114 and 115: Private Addresses
Page 116 and 117: NAT: Network AddressTranslationImpl
Page 118 and 119: NAT: Network AddressTranslation 16-
Page 120 and 121: Provider NATs? ConsideredHarmful156
Page 122 and 123: TURN protocol Protocol for UDP/TCP
Page 124 and 125: STUN (RFC 3489) Defines operations
Page 126 and 127: Configuring NAT in LinuxLinux uses
Page 128 and 129: Multimedia Networking
Page 130 and 131: GoalsPrinciples Classify multimedia
Page 132 and 133: Streaming stored multimedia Streami
Page 134 and 135: Streaming live multimediaExamples:
Page 136 and 137: A few words about audiocompression
Page 138 and 139: Packet loss and delay Network loss:
Page 142 and 143: Principles for QOS Guarantees Examp
Page 144 and 145: Principles for QOS Guarantees Alloc
Page 146 and 147: Summary of QoS Principles
Page 148 and 149: Scheduling Policies: morePriority s
Page 150 and 151: Scheduling Policies: still moreWeig
Page 152 and 153: Diffserv ArchitectureEdge router: p
Page 154 and 155: Classification and Conditioning Pac
Page 156 and 157: Firewalls156
Page 158 and 159: Firewall goals All traffic from out
Page 160 and 161: Traditional packet filtersAnalyzes
Page 162 and 163: Access control listsApply rules fro
Page 164 and 165: Advantages and disadvantages oftrad
Page 166 and 167: Firewall lab: iptables iptables Pro
Page 168 and 169: iptables: Example commandiptables -
Page 170 and 171: iptables Options-p protocol type (t
Page 172 and 173: Firewall Lab: Part B Rules for outg
Page 174 and 175: Stateful filters: example Log each
Page 176: Demarcation Zone (DMZ)applicationga
show all

Internet Exchange Points (IXPs)

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?