Page 1 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/29012003-V1.0 ADANETS WP2: QoS management ADANETS Workshop 29/01/2003 L.Maknavicius.

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Presentation transcript:

Page 1 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 ADANETS WP2: QoS management ADANETS Workshop 29/01/2003 L.Maknavicius

Page 2 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 QoS work scope QoS in ADANETS:  Optimal transport capacity of IP flows originating from different applications  Mainly IP core networks  QoS parameters expressed through an SLA/SLS  Service differentiation by per flow priority handling  Three-fold solution set: Policy-based management for provisioning Pro-active assurance Multi-domain QoS negotiation

Page 3 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 Prioritizing the Traffic Flows: example Low Priority: Web Traffic, FTP Medium Priority: , Transactional Apps High Priority: Critical Data Applications Highest Priority: Voice and Video

Page 4 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 From the contract to the network Ethernet IP ATM/FR Ethernet MPLS queueing classifymeter dropper shaping (re)mark filter encrypt authenticate authorize NAT DNS DHCP decrypt firewall PPP User “Transparent” Network Cloud wants IKE access to radius routing Application Server SLA QoS Perf. SLA

Page 5 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 Overall management view Customer Service inventory SLS Definition Provisioning Service Template/ Offer Assurance Assurance config. Actions, indicators Policy Server Mediation / Translation SLA

Page 6 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 Relevant standards (1): QoS mechanisms overview Horizontal QoS mechanisms (consistent techniques shared by all network nodes, such as signalling, priority labelling, …) Vertical QoS mechanisms (between adjacent lavels) QoS over ATM QoS over optics (SDH) QoS over Ethernet QoS over Frame Relay MPLS IntServ / RSVP DiffServ Layer 2 Layer 3 Layer 4 Upper layers Bandwidth brokers Application/system-related QoS: client/server response time, data backup, srv performance, … Layer 7 QoS based policy mgmt (Policy framework, COPS) Traffic mgmt Net- work elements QoS routing/ CBR

Page 7 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 Relevant standards (2): IETF IntServ - per-micro flow resource reservation DiffServ – per class traffic prioritization MPLS - forwarding scheme TE – resource/performance optimization  CBR – route selection wrt objectives & constraints Policy-based management Policy Server PDP Policy Repository Policy mgmt tool COPS PEPs Models to represent policy information:  PCIM, PCIMe, QPIM, IPVPN

Page 8 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 QoS mgmt Framework (1): overview

Page 9 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 QoS mgmt Framework (2): network provisioning

Page 10 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 QoS mgmt Framework (3): service provisioning

Page 11 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 QoS mgmt Framework (4): TE (assurance & netw optimiz n )

Page 12 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 QoS Framework instantiation for service provisioning

Page 13 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 Assurance part: proactive SLS management Alarm filtering & correlation Check SLA commitments + classify violations Determine correction actions

Page 14 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 Multi-domain QOS negotiation: protocol- & PBM-based approach SLS1 SLS2 desired QoS accept/reject/proposal

Page 15 ADANETS Workshop Jan 29, 2003ADANETS-WP2-Alcatel-SLIDE/ V1.0 ADANETS WP2 – QoS mgmt: status & conclusions Achieved:  Comprehensive QoS management Framework  Pro-active SLS violation management Task list:  D2.1 “Analysis of standards on QoS provisioning on IP networks & proposition of QoS mgmt framework” – available (public)  D2.2 “Assurance of SLS & QoS commitments” (restricted)  D2.3 “Defining specification for QoS negotiation over multiple network domains” - available (public)  D2.4 “Policy server demo” – scheduled for 2003 TBD:  QoS end-to-end vision  Other Frwk instantiations wrt demo technical choices Requests: 