Price: $1,699.00

Course Number: 617
Length: 2 Days
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IP QoS Training Course Description

IP QoS training describes policy-based QoS architecture which supports infrastructure for delivering QoS based applications. Finally, the course introduces some emerging trends in IP QoS.It explains the techniques, principles and technology associated with implementing IP Quality of Service (QoS). The IETF’s Integrated Services standard and accompanying protocols such as RSVP, RTP and RTCP are described, and how RSVP, DiffServ is used as a QoS signaling protocol to request a certain QoS is covered.

This course describes the IETF’s Integrated and  Differentiated Services standard and how it can be used to provide QoS on a per-hop basis, and explains how IntServ and DiffServ are used to provide IP QoS support in routers. MPLS, MPLS-TE, RSVP-TE and GMPLS can be used to improve forwarding efficiency and source based routing and provide a basis for good QoS support is described. This course also explains how IPv6 and class-based queuing all help to provide IP QoS.

Learn about:

  • Baiscs of QoS and IP QoS
  • Need for QoS
  • Building Blocks of IP QoS
  • Implementing QoS
  • Models for Implementing QoS
  • The Integrated Services Model (IntServ)
  • The Differentiated Services Model (DiffServ)
  • Classification and Marking
  • MQC and NBAR for Classification
  • Congestion Management
  • Queuing
  • Queuing Implementations
  • FIFO and WFQ
  • CBWFQ and LLQ
  • Configuring LAN Congestion Management
  • Congestion Avoidance
  • Congestion Avoidance
  • RED
  • Class-Based Weighted RED
  • Explicit Congestion Notification
  • Traffic Policing and Shaping
  • Link Efficiency Mechanisms
  • QoS Best Practices
  • Traffic Classification Best Practices
  • Deploying End-to-End QoS

Who Should Attend

This course is designed for individuals seeking an overview of the IP Quality of Service architectures in the Internet.This course will provide a powerful state-of-the-industry IP QoS fundamentals for people who are involved with : Network Architecture, Service and Network Integration, Network Management, Support Systems and Development, and Network Operations Center (NOC).

Objectives

  • How QoS works-and why it is crucial to networks that must deliver integrated voice, data, and video traffic
  • Implementing QoS in IP environments
  • Leveraging QoS capabilities built into IPv4 and IPv6
  • Understanding the Resource Reservation Protocol (RSVP), Real-Time Transport Protocol (RTP), and DiffServ
  • Explain the techniques, principles and technology associated with implementing IP Quality of Service (QoS)
  • Describe the IETF's Integrated Services standard and accompanying protocols such as RSVP, RTP and RTCP
  • Describe the IETF's Differentiated Services standard and how it can be used to provide quality of service on a per-hop basis.
  • Explain the various queuing and congestion avoidance techniques used by QoS-aware routers to implement services such as IntServ and DiffServ.
  • and more ...

Outline

Executive Summary

  • Why need any QoS?
  • Basic of Quality of Service in Data Networks
  • Qos in Data Networks: Protocols and Standards
  • QoS in Packet Switched Networks
  • Efforts to define QoS
  • QoS parameters
  • Grade of Service
  • Class of Service
  • Why QOS?
  • Building Blocks of IP QoS
  • Congestion
  • Provisioning and Supporting QOS
  • The QOS Models
  • Scope of QOS Service and QOS Domains
  • Service Level Agreements (SLAs)
  • SLA Monitoring Points
  • Applying QoS
  • At the Core
  • At the Edge
  • QoS in Internet today
  • How does the Internet provide QoS today?
  • What are the limitations with the current QoS strategy
  • QoS Requirements
  • What are the QoS requirements?
  • Challenges for deploying IP QoS
  • Policy based QoS architecture
  • QoS Models
  • Application approach vs. aggregated approach
  • Introduction to IP QoS models
  • Integrated Services Approach (IntServ)
  • Integrated Service approach
  • Limitations of the Integrated Services approach
  • ReSerVation Protocol (RSVP)
  • Differentiated Services Approach (DiffServ)
  • Differentiated Services approach
  • DiffServ protocol
  • DiffServ implementation
  • Multiprotocol Label Switching (MPLS) Protocol
  • Traffic management functions
  • Common Open Policy Standard (COPS)
  • Emerging Trends in QoS
  • Classification and Marking
  • MQC and NBAR for Classification
  • Queuing
  • FIFO, WFQ, CBWFQ and LLQ
  • Class-Based Weighted RED
  • QoS Best Practices
  • Traffic Classification Best Practices
  • Deploying End-to-End QoS

What is QoS?

  • Why do we need it?
  • Things to Consider
  • Isochronism
  • Delay
  • Loss
  • Jitter
  • Others

QOS Concepts and Operations

  • Statistical Multiplexing
  • Congestion Problems
  • Flow Control Mechanisms
  • Explicit and Implicit Flow Control
  • Problems with Internet Flow Control Services
  • Congestion, Traffic Control, and Connection Admission Control. Arrival Rate and Traffic Load
  • Queue Management Operations
  • Operations at the Final Destination
  • Buffer Size, Packet Size, and Traffic Loss
  • Error Recovery in High-Speed Networks
  • Monitoring and Traffic Tagging
  • Associating Labels with QOS Operations
  • Controlling Data Traffic

QOS Evolution

  • Network Interfaces
  • Value of the Interface Concept
  • The QOS Layered Model
  • Connection-Oriented and Connectionless Interfaces
  • QOS in Connection-oriented and Connectionless Networks
  • QoS in ATM, Frame Relay
  • X.25 Features
  • Frame Relay Features
  • A TM Features
  • IP-Based Layer 2 and 3 Switching and Routing
  • Label Switching

Internetworking IP, X.25, Frame Relay, and ATM

  • ATM vs IP
  • Internetworking Frame Relay and ATM
  • Network Interworking and Service Interworking
  • Comparison of Frame Relay and ATM
  • AAL 5 Operations for Frame Relay Support
  • Mapping QoS Between ATM and Frame Relay
  • Congestion Management
  • Mapping Frame Relay and ATM Connection Identifiers
  • Correlation of SVC Operations
  • Mapping the Congestion Notification Bits
  • Mapping QOS between Frame Relay and ATM.
  • IP and FR/ATM

Quality of Service over IP

  • Related Internet Protocols
  • Different Types of Applications
  • Real-Time and Non-Real-Time Applications
  • Layer 4 Port Numbers
  • Transmission Control Protocol (TCP)
  • TCP QoS Controls
  • User Datagram Protocol (UDP) QoS Controls
  • Real-Time Transport Protocol / RTP Control Protocol (RTP/RTCP) Applications
  • Differentiated Services
  • Integrated Services
  • QoS Routing
  • RSVP
  • MPLS, GMPLS, IP Switching, and MPOA
  • Multimedia Networking
  • Voice over IP

IETF Working Groups

  • Differenticated Services (diffserv)
  • Integrated Services (intserv),
  • Integrated Services over Specific Link Layers (issll)
  • Resource Reservation (rsvp)
  • Resource Allocation Protocol (rap)
  • Policy Framework (policy)
  • Common Control and Measurement Plane (ccamp)
  • Internet Traffic Engineering (tewg)
  • Multiprotocol Label Switching (mpls)

Integrated Services

  • Objectives of RSVP
  • Principles of Operation
  • Controlled Load Service
  • Guaranteed Service
  • Controlled-load Network Element Service
  • Resource Reservation Protocol (RSVP)
  • RTP/RTCP
  • Packet Formats Guaranteed
  • QoS routing
  • Integrated Services and ATM
  • Bandwidth allocation in subnets

Differentiated Services

  • Differentiated Services (DiffServ)
  • Objectives of DiffServ
  • Principles of Operation
  • Traffic Conditioning
  • IP Class Selector PHB
  • Supporting DiffServ in IPv4
  • Supporting DiffServ in IPv6
  • Relationship with MPLS
  • Per-Hop-Behavior Groups
  • Service Examples
  • Use of RSVP with Differentiated Services
  • DiffServ Architecture
  • Control Plane and Data Plane
  • Comparison of QOS Technologies
  • Traffic Classification and Conditioning

Internet QOS Protocols

  • QOS in IPv4 and IPv6
  • Summary of Changes
  • IPv4 Connectionless Service and QoS
  • Type-of-Service (TOS) and Classification of Traffic
  • IPv6 Traffic Class and Flow Label
  • Routing Protocols and QoS
  • Considerations in Routing
  • Why IPv6?The IPv6 Address
  • The IPv6 Datagram
  • IPv4 and IPv6 Headers
  • IPv6 Extension Headers
  • Fragmentation Header
  • Hop-by-Hop Options Header
  • Security Extension Headers
  • Routing Header
  • Destination Options Header
  • Internet Control Management Protocol (ICMP) for IPv6
  • Interworking IPv4 and IPv6
  • TCP and its Effect of QOS
  • How TCP Handles User Traffic
  • Interactive Traffic
  • Bulk Traffic
  • Role of Multicasting, RTP, RTCP, and RSVP in the QOS

Traffic Management

  • FIFO Routers v QoS Routers
  • Fair Queuing
  • Weighted Fair Queuing
  • Class-Based Queuing
  • Hierarchical Link Sharing
  • Custom Queuing
  • Priority Queuing
  • TOS Field
  • IP Precedence
  • Header Compression
  • Traffic Engineering with MPLS

Congestion Management

  • RED
  • WRED
  • Tail Drop
  • ECN
  • Differentiated Services

Why MPLS and GMPLS?

  • MPLS: The need for a new solution
  • Challenges for new IP centric networks
  • Limitations of traditional IP networking
  • Achieving QoS
  • Understanding the fundamentals
  • Basic MPLS operation
  • Forwarding Equivalence Class
  • Label encoding, distribution and binding
  • Traffic Engineering: The need for Constrained and Explicit Routes
  • Proprietary approaches to MPLS
  • MPLS and Routing
  • MPLS over ATM
  • MPLS over Frame Relay
  • MPLS v MPOA
  • MPLS vs GMPLS
  • IPv6 and MPLS

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