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The Evolution of Programmable Networks: From Active Networks Slide title to Software Defined Networks 70 pt (SDN) CAPITALS Ahmad Rostami, PhD Slide subtitle Ericsson Research, Stockholm minimum 30 pt [email protected] Slide title Outline of Tutorial – I 44 pt ›  Programmability in Telephony Networks" Text and bullet level 1 ›  minimum 24 pt Introduction to Programmable Networks " Bullets level 2-5 › Definition (What) & Why we need that" minimum 20 pt › How can we evaluate different approaches " › Approaches to PN (How): A Quick Retrospective Review " Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ › Active Networks" ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ › (G)MPLS" ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ › ForCES" ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 2 Slide title Outline of Tutorial – II 44 pt ›  Software Defined Networking (SDN)" Text and bullet level 1 minimum 24 pt › Introduction & Basic Concept " Bullets level 2-5 › SDN Realization Example: OpenFlow" minimum 20 pt › SDN/OpenFlow Benefits and Issues" › SDN Controllers" Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ › SDN Use-case Example: Network Virtualization" ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ › Programmability Beyond Current SDN/OpenFlow" ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 3 Slide title Outline of Tutorial – III 44 pt ›  Network Function Virtualization (NFV)" Text and bullet level 1 minimum 24 pt › Relation to SDN " Bullets level 2-5 ›  SDN and NFV in Action: Unifying Cloud & Carrier minimum 20 pt Networks " ›  Pointers to Relevant Bodies" Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 4 Slide title 44 pt A quick look at the control in telephony networks Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt —OR— How was programmability Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ introduced into telephony ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ networks more than 20 ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ years ago? ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 5 Signaling System No. 7 (SS7) Slide title 44 pt STP STP SS7 Signaling Text and bullet level 1 Network minimum 24 pt SCP Bullets level 2-5 STP STP minimum 20 pt Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ SSP ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ Voice Circuits Networks ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl SSP ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ SSP ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ SSP: Service Switching Point STP: Signal Transfer Point Do not add objects or SCP: Service Control Point text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 6 Intelligent Networks (IN) – I Slide title 44 pt Value-Added ! Approach & ! Introduction of ! Telephony Services! Shortcomings! Text and bullet level 1 IN! minimum 24 pt Bullets level 2-5 Decouple the service The main approach minimum 20 pt Introduction of " intelligence from the to new services digital switches " basic call control in a was based on the " in 80´s opened switch. " pre-programmed Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? opportunities for @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef switches (SSPs)." " ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ offering new value- ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ Lack of " ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ added services: call ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ Programmability of " Push the service ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl forwarding, call ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ Switches led to intelligence to (a ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП waiting, …" few) centralized РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ lengthy process of ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ location inside the creating new network. " Services. " " Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 7 Intelligent Networks (IN) – I I Slide title 44 pt STP STP STP STP SS7 SS7 2 Text and bullet level 1 Signaling SCP Signaling SCP minimum 24 pt Network Network Bullets level 2-5 STP STP STP STP minimum 20 pt 1: Basic Call Handling 2: Service Intelligence Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ SSP SSP ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų 1&2 Voice Circuits SSP 1 Voice Circuits SSP ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹŲĹŲĻŴĻĽŴĽŃŶŶŃŹŅŹŅŻŻŇȘŇșŌ−Ō≤≥ŐfiŐflŔŔ ŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ Networks 1&2 Networks 1 SSP SSP ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ 1&2 1 ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Making the call control programmable enabled (facilitated) many interesting value-added services, e.g., 0800-xxx numbers. " Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 8 Slide title 44 pt Text and bullet level 1 minimum 24 pt Introduction to Bullets level 2-5 minimum 20 pt network Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef programmability ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 9 Classical Internet Slide title 44 pt Architecture Internet: an interconnection of comm. nodes each monolithically realizing forwarding & control based on a layered architecture! Text and bullet level 1 minimum 24 pt ! Bullets level 2-5 Forwarding & Control t n minimum 20 pt e m e g am ne Characters for Embedded font: at !"#$%&'()*+,-./0123456789:;<=>? Ms @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef y Server g´¶h·¸i¹jºk»¼lm½nÀoÁpÂqÃrÄsÅtuÆvÇwÈËxÌyÍÎzÏÐ{|Ñ}~Ò¡¢Ó£Ô¤¥Õ¦Ö§×¨©ØªÙ«Ú¬Û®¯Ü°±Ý²Þ³ k S IP Router ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ r ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų o ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ w €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl et N ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΦΨΧΪΨΫΆΩΈΪΉΫΊΌΰΎαΏβ γδεζηθικλνξορςΣΤΥ IP Router IP Router ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ L1-L3 Processing (Forwarding) " Application Processing (L4+) Do not add objects or End host text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 10

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Programmability Beyond Current SDN/OpenFlow. Outline of jects or ter area. ITC'26 Tutorial | A. Rostami | 2014-09-08 | Page 6 .. generic execution environments (EE). › Expose an ODL is mainly programmed in JAVA.
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From Active Networks to Software Defined Networks (SDN) PDF

89 Pages·2014·4.76 MB·English
by  Ahmad Rostami
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Preview From Active Networks to Software Defined Networks (SDN)

The Evolution of Programmable Networks: From Active Networks Slide title to Software Defined Networks 70 pt (SDN) CAPITALS Ahmad Rostami, PhD Slide subtitle Ericsson Research, Stockholm minimum 30 pt [email protected] Slide title Outline of Tutorial – I 44 pt ›  Programmability in Telephony Networks" Text and bullet level 1 ›  minimum 24 pt Introduction to Programmable Networks " Bullets level 2-5 › Definition (What) & Why we need that" minimum 20 pt › How can we evaluate different approaches " › Approaches to PN (How): A Quick Retrospective Review " Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ › Active Networks" ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ › (G)MPLS" ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ › ForCES" ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 2 Slide title Outline of Tutorial – II 44 pt ›  Software Defined Networking (SDN)" Text and bullet level 1 minimum 24 pt › Introduction & Basic Concept " Bullets level 2-5 › SDN Realization Example: OpenFlow" minimum 20 pt › SDN/OpenFlow Benefits and Issues" › SDN Controllers" Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ › SDN Use-case Example: Network Virtualization" ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ › Programmability Beyond Current SDN/OpenFlow" ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 3 Slide title Outline of Tutorial – III 44 pt ›  Network Function Virtualization (NFV)" Text and bullet level 1 minimum 24 pt › Relation to SDN " Bullets level 2-5 ›  SDN and NFV in Action: Unifying Cloud & Carrier minimum 20 pt Networks " ›  Pointers to Relevant Bodies" Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 4 Slide title 44 pt A quick look at the control in telephony networks Text and bullet level 1 minimum 24 pt Bullets level 2-5 minimum 20 pt —OR— How was programmability Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ introduced into telephony ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ networks more than 20 ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ years ago? ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 5 Signaling System No. 7 (SS7) Slide title 44 pt STP STP SS7 Signaling Text and bullet level 1 Network minimum 24 pt SCP Bullets level 2-5 STP STP minimum 20 pt Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ SSP ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ Voice Circuits Networks ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl SSP ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ SSP ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ SSP: Service Switching Point STP: Signal Transfer Point Do not add objects or SCP: Service Control Point text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 6 Intelligent Networks (IN) – I Slide title 44 pt Value-Added ! Approach & ! Introduction of ! Telephony Services! Shortcomings! Text and bullet level 1 IN! minimum 24 pt Bullets level 2-5 Decouple the service The main approach minimum 20 pt Introduction of " intelligence from the to new services digital switches " basic call control in a was based on the " in 80´s opened switch. " pre-programmed Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? opportunities for @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef switches (SSPs)." " ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ offering new value- ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ Lack of " ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ added services: call ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ Programmability of " Push the service ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl forwarding, call ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ Switches led to intelligence to (a ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП waiting, …" few) centralized РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ lengthy process of ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ location inside the creating new network. " Services. " " Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 7 Intelligent Networks (IN) – I I Slide title 44 pt STP STP STP STP SS7 SS7 2 Text and bullet level 1 Signaling SCP Signaling SCP minimum 24 pt Network Network Bullets level 2-5 STP STP STP STP minimum 20 pt 1: Basic Call Handling 2: Service Intelligence Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ SSP SSP ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų 1&2 Voice Circuits SSP 1 Voice Circuits SSP ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹŲĹŲĻŴĻĽŴĽŃŶŶŃŹŅŹŅŻŻŇȘŇșŌ−Ō≤≥ŐfiŐflŔŔ ŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ Networks 1&2 Networks 1 SSP SSP ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ 1&2 1 ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Making the call control programmable enabled (facilitated) many interesting value-added services, e.g., 0800-xxx numbers. " Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 8 Slide title 44 pt Text and bullet level 1 minimum 24 pt Introduction to Bullets level 2-5 minimum 20 pt network Characters for Embedded font: !"#$%&'()*+,-./0123456789:;<=>? @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef programmability ghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³ ´¶·¸¹º»¼½ÀÁÂÃÄÅÆÇÈËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞ ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΨΪΫΆΈΉΊΰαβγδεζηθικλνξορςΣΤΥ ΦΧΨΩΪΫΌΎΏ ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ Do not add objects or text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 9 Classical Internet Slide title 44 pt Architecture Internet: an interconnection of comm. nodes each monolithically realizing forwarding & control based on a layered architecture! Text and bullet level 1 minimum 24 pt ! Bullets level 2-5 Forwarding & Control t n minimum 20 pt e m e g am ne Characters for Embedded font: at !"#$%&'()*+,-./0123456789:;<=>? Ms @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdef y Server g´¶h·¸i¹jºk»¼lm½nÀoÁpÂqÃrÄsÅtuÆvÇwÈËxÌyÍÎzÏÐ{|Ñ}~Ò¡¢Ó£Ô¤¥Õ¦Ö§×¨©ØªÙ«Ú¬Û®¯Ü°±Ý²Þ³ k S IP Router ßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿĀāĂ ăąĆćĊċČĎďĐđĒĖėĘęĚěĞğĠġĢģĪīĮįİıĶķĹĺĻļĽľŁłŃ r ńŅņŇňŌŐőŒœŔŕŖŗŘřŚśŞşŠšŢţŤťŪūŮůŰűŲų o ŴŵŶŷŸŹźŻżŽŽžžƒȘșˆˇ˘˙˚˛˜˝ẀẁẃẄẅỲỳ–—‘’‚“”„†‡•…‰‹›⁄ w €™ĀĀĂĂĄĄĆĆĊĊČČĎĎĐĐĒĒĖĖĘĘĚĚĞĞĠĠĢĢĪĪĮĮİĶĶ ĹĹĻĻĽĽŃŃŅŅŇŇŌŌŐŐŔŔŖŖŘŘŚŚŞŞŢŢŤŤŪŪŮŮŰŰ ŲŲŴŴŶŶŹŹŻŻȘș−≤≥fifl et N ΆΈΉΊΌΎΏΐΑΒΓΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦ ΧΦΨΧΪΨΫΆΩΈΪΉΫΊΌΰΎαΏβ γδεζηθικλνξορςΣΤΥ IP Router IP Router ЁЂЃЄЅІЇЈЉЊЋЌЎЏАБВГДЕЖЗИЙКЛМНОП РСТУФХЦЧШЩЪЫЬЭЮЯАБВГДЕЖЗИ ЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯЁЂ ЃЄЅІЇЈЉЊЋЌЎЏѢѢѲѲѴѴҐҐәǽẀẁẂẃẄẅỲỳ№ L1-L3 Processing (Forwarding) " Application Processing (L4+) Do not add objects or End host text in the footer area ITC’26 Tutorial | A. Rostami | 2014-09-08 | Page 10

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Programmability Beyond Current SDN/OpenFlow. Outline of jects or ter area. ITC'26 Tutorial | A. Rostami | 2014-09-08 | Page 6 .. generic execution environments (EE). › Expose an ODL is mainly programmed in JAVA.
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