AQUILA. Interim Master Thesis Talk. Sandeep Misra. Guide : Prof. Hußmann
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1 Interim Master Thesis Talk Extension of a DiffServ enabled IP core network for delivering QoS to xdsl access By : Guide : Prof. Hußmann
2 AQUILA (IST ) Adaptive Resource Control for QoS Using an IP-based Layered Architecture
3 Outline & AQUILA Resource Reservation Protocols ation Scenarios Network Address Translation ation
4 Quality of Service Current traffic flow : Best effort Requirements : 1. Traffic Classification 2. Real Time Traffic 3. IP Convergence User is paying for the service Need for QoS
5 AQUILA : Introduction Based on the DiffServ network concept Introduces Traffic Classes Introduces Admission Control Introduces Resource Control Only for Network Is Scalable
6 AQUILA Architecture Resource Control Layer Resource Control resources Resource Control Agent resources Admission Control End-user Application Toolkit QoS Request QoS Request Network Admission Control Agent Settings Edge QoS Request Admission Control Agent Settings Edge Network
7 AQUILA on n/w? Resource Control Layer QoS Request Settings Edge Why Not Extend AQUILA to Network? Settings Edge Network Network Real Time Traffic FTP Traffic
8 Protocol Requirements Guarantees QOS ation should exist Should be widely supported Scalability, not a problem Suitable for networks Low Bandwidth Fast Signaling
9 Reservation Protocols RSVP Resource Reservation Protocol SRP Scalable Resource Reservation Protocol FIRST Flow Initiation and Reservation Tree DRP Dynamic Sender Initiated Reservation Protocol Boomerang A simple protocol for Resource Reservation YESSIR Yet another Sender Session Internet Reservation
10 Comparison : Headers YESSIR RTP Boomerang RSVP RSVP UDP ICMP UDP IP IP IP YESSIR Header Boomerang Header RSVP Header
11 Comparison : Properties Initiator Flow Setup RSVP Receiver Two Messages YESSIR Sender One Message Boomerang Sender One Message Setup at router Fast Faster Faster Refresh Fast Faster Faster Bandwidth Low Lower Lower Implementation Yes Yes Yes Scalable No Yes Yes Support Wide No No
12 Implementation Scenario : RSVP Encapsulation Resource Control Layer Edge Settings Edge Settings Network Network RSVP RESV RSVP PATH
13 Implementation Scenario : RSVP Termination Resource Control Layer Edge Settings Edge Settings Network Network RSVP RESV RSVP PATH
14 xdsl : Overview HDSL : High-bit rate Digital Subscriber Line Symmetric Up to 2 Mbps SDSL : Symmetric Digital Subscriber Line Symmetric Up to 3 Mbps ADSL : Asymmetric Digital Subscriber Line Asymmetric Downstream : up to 9 Mbps Upstream : 128 kbps upstream
15 ADSL : Technology Simultaneous voice and data use of a single copper connection Voice call, Fax etc use the normal 0-4kHZ Higher frequencies to pass the data traffic Telephone Operator Telephone Socket Lower Frequencies Telephone Twisted Copper Cable Spliter Computer Higher Frequencies
16 NAT : Network Address Translation translates local IP header address to unique IP Does not look for IP address in payload Plug in, in NAT for RSVP Local LAN xdsl ISP
17 Implementation Scenario Introduce a xdsl router with AEA Network Edge + EAT Host + RSVP xdsl Connection Network xdsl + AEA EAT : End User Application Toolkit AEA : AQUILA Extension for n/w
18 AEA Architecture Modified RSVP Socket C RSVP Interface JNI Java EAT Interface Corba EAT
19 Summary Complete : Research Planning Installation of xdsl router and RSVP Interaction of AEA & RSVP To Be Done : Interaction of AEA & EAT Tests
20 Questions & Discussion
21 AQUILA (IST ) Adaptive Resource Control for QoS Using an IP-based Layered Architecture Thank you for your attention!
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