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Register a new userImproving BandWidth Utilization in Software Defined Networks (SDN)
تحسين استهلاك عرض الحزمة في الشبكات المعرفة بالبرمجيات
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Tishreen University ورقة بحثية
Publication date
2020
fields
Informatics Engineering
and research's language is
العربية
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Shamra Editor
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تعد الشبكات المعرفة بالبرمجيات Software Defined Networks(SDN) النقلة النوعية في مجال الشبكات لكونها تفصل عناصر التحكم عن عناصر التوجيه، واقتصرت وظيفة عناصر التوجيه على تنفيذ القرارات التي ترسل إليها من المتحكم عن طريق بروتوكول التدفق المفتوح OpenFlow Protocol(OF) الذي يستخدم بشكل أساسي في SDN.نوضح في هذا البحث الاستفادة من المفهوم الجديد الذي قدمته الشبكات المعرفة بالبرمجيات، حيث تجعل إدارة الشبكة أسهل، فبدلاً من كتابة القواعد على كل جهاز، نقوم ببرمجة التطبيق الذي نريده في المتحكم، وتقوم أجهزة البنية التحتية بتنفيذ الأوامر الواردة إليها من المتحكم. ولكي نحقق أفضل أداء لهذه التقنية لا بد من تطبيق جودة الخدمة Quality of Service (QoS) ضمنها، حيث تشمل جودة الخدمة عدة معايير أهمها عرض الحزمة المستخدم والتأخير وخسارة البيانات والرجرجة (Jitter).ومن أهم هذه العوامل هو عرض الحزمة، لأنه من خلال تحسين هذا المعيار، يمكننا تحسين باقي المعايير الأخرى، لذلك نقدم في هذا البحث التحسين اللازم على المتحكم RYU لاستخدام عرض الحزمة بالشكل الأفضل، مما يحسن من جودة الخدمة في SDN.
Software Defined Networks (SDN) is the qualitative movement in the field of networks due to that fact that it separates the control elements from the routing elements, and the function of the routing elements was limited to the implementation of the decisions that are sent to it by the controller through the OpenFlow Protocol (OF) which is mainly used in SDN. We explain in this paper the benefit of the new concept which is presented by SDN and it makes network management easier, so instead of writing the rules on each device, we program the application in the controller, and the infrastructure devices run the received commands from the controller. In order to achieve the best performance of this technology, a Quality of Service (QoS) must be applied within it, where it includes several criteria, the most important are the used bandwidth, delay, packet loss and jitter. The most important of these criteria is the bandwidth, because by improving this standard, we can improve the rest of the other criteria. Therefore, in this paper, we provide the necessary improvement on the RYUcontroller to use the best bandwidth, which improves the quality of service in SDN.
Artificial intelligence review:
Research summary
تناقش الورقة البحثية تحسين استهلاك عرض الحزمة في الشبكات المعرفة بالبرمجيات (SDN) باستخدام المتحكم RYU. تشرح الورقة كيف تفصل SDN عناصر التحكم عن عناصر التوجيه، مما يسهل إدارة الشبكة. يتم تنفيذ القرارات من قبل أجهزة البنية التحتية بناءً على الأوامر الواردة من المتحكم عبر بروتوكول التدفق المفتوح (OF). لتحقيق أفضل أداء، يجب تطبيق جودة الخدمة (QoS) التي تشمل معايير مثل عرض الحزمة، التأخير، خسارة البيانات، والرجرجة. تركز الورقة على تحسين عرض الحزمة كعامل رئيسي لتحسين باقي المعايير. تم تنفيذ سيناريوهات باستخدام المحاكي Mininet وأداة Iperf لقياس عرض الحزمة. أظهرت النتائج فعالية الطريقة المقترحة في تحسين استهلاك عرض الحزمة، مما يحسن من جودة الخدمة في SDN.
Critical review
دراسة نقدية: تقدم هذه الورقة البحثية مساهمة قيمة في مجال الشبكات المعرفة بالبرمجيات من خلال التركيز على تحسين استهلاك عرض الحزمة باستخدام المتحكم RYU. ومع ذلك، يمكن أن تكون الدراسة أكثر شمولاً إذا تناولت تأثير تحسين عرض الحزمة على باقي معايير جودة الخدمة بشكل أعمق. كما أن استخدام سيناريوهات إضافية واختبار المتحكمات الأخرى مثل Floodlight يمكن أن يعزز من موثوقية النتائج. بالإضافة إلى ذلك، يمكن تحسين الورقة من خلال تقديم تحليل اقتصادي لتكلفة تنفيذ الحل المقترح مقارنة بالفوائد المحققة.
Questions related to the research
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ما هي الفائدة الرئيسية من استخدام الشبكات المعرفة بالبرمجيات (SDN)؟
الفائدة الرئيسية هي فصل عناصر التحكم عن عناصر التوجيه، مما يسهل إدارة الشبكة وتحسين أدائها.
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ما هو الدور الذي يلعبه المتحكم RYU في تحسين استهلاك عرض الحزمة؟
المتحكم RYU يقوم بتحسين استهلاك عرض الحزمة من خلال تطبيق آلية تضمن عدم حجز كامل عرض الحزمة لتدفق محدد، بل حسب الحاجة الفعلية.
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ما هي الأدوات المستخدمة في البحث لقياس عرض الحزمة؟
تم استخدام المحاكي Mininet وأداة Iperf لقياس عرض الحزمة.
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ما هي المعايير الأساسية لجودة الخدمة (QoS) التي تم التركيز عليها في البحث؟
المعايير الأساسية هي عرض الحزمة، التأخير، خسارة البيانات، والرجرجة.
References used
KARAKUS M.; DURRESI A. Quality of Service (QoS) in Software Defined Networking (SDN): A Survey. Journal of Network and Computer Applications (JNCA), 2016.
GHYAR, C.; SHAHADE M.; BAMB S.; MANKAR V. Basics of Quality of Services (QoS). IJSRST, Vol.4, Issue 7, 2018
ODOM, W.; HOGG, S. CCNA Routing and switching ICND2 200-105 Official Cert Guide. Cisco Press, USA, 2017,1452.
ASADOLLAHI S.; GOSWAMI B.; SAMEER M. Ryu Controller’s Scalability Experiment on Software Defined Networks .IEEE International Conference on Current Trends in Advanced Computing (ICCTAC), 2018
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and disseminating tools for
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packets before sending and after receiving, then we estimate the available bandwidth. This
method relies on an easy and fast algorithm. Applications can use this method before they
start exchanging data over the Internet.
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