Deploying Tight-SLA services on an IP Backbone

1/23/2002


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Table of Contents

PPT Slide

Deploying Tight-SLA services on an IP Backbone

Deploying Tight-SLA services on an IP Backbone

Deploying Tight-SLA services on an IP Backbone

Introduction and SLAs

SLAs and Quality of Service

SLA Metrics: One-way delay

SLA Metrics: Jitter

SLA Metrics: Jitter

SLA Metrics: Loss

SLA Metrics: Throughput

TCP Throughput

SLA Metrics: Availability

Typical Per Class SLA Characteristics

SLA Metrics: Per flow sequence preservation

Service perception

SLA Definitions Today

Deploying Tight-SLA services on an IP Backbone

Deploying Tight-SLA services on an IP Backbone

Deploying Tight-SLA services on an IP Backbone

Backbone Diffserv

The Concept of Traffic Service

Low delay, low jitter and low loss

Over-provisioning (Source: Stephen Casner, Packet Design, NANOG 22)

Over-provisioned Backbone

Over-provisioning is it possible?

Over-provisioning (Source: Stephen Casner, Packet Design, NANOG 22)

Over-provisioning at what cost?

What benefit of Diffserv?

Diffserv Recap

Diffserv backbone

Diffserv Architecture: RFC2475

DS Field (RFC 2474)

Edge vs. Backbone Diffserv

Per-Hop Congestion Management

Diffserv and Cisco

Backbone Diffserv Configuration

What does our backbone look like?

Backbone QoS with Diffserv

Backbone Diffserv Configuration (1)

Backbone Diffserv Configuration (1)

Backbone Diffserv Configuration (1)

Backbone Diffserv Configuration (1)

Backbone Diffserv Configuration (2)

Backbone Diffserv Configuration (2): PE-to-P QoS

Backbone Diffserv Configuration (2): PE-to-P QoS: IP backbone

Backbone Diffserv Configuration (2): P-to-P QoS

Backbone Diffserv Configuration (2): GSR QoS Architecture

Backbone Diffserv Configuration (2): P-to-P QoS

Backbone Diffserv Configuration (3)

Backbone Diffserv Configuration (3)

Backbone Diffserv Configuration (3)

EF performance for mDRR PQ

Backbone Diffserv Configuration (3): mDRR Tuning

Correctness of AF Bandwidth Allocation

Business Class Latency

Backbone Diffserv Configuration (3): WRED Tuning

Backbone Diffserv Configuration (3): WRED Tuning

Backbone Diffserv Configuration (3): WRED Tuning

Backbone Diffserv Configuration (3): WRED Tuning

Backbone Diffserv Configuration (3): WRED Tuning

Backbone Diffserv Configuration (3): WRED Tuning

MPLS and Diffserv

Diffserv Support over MPLS

MPLS and DiffServ Using the EXP bits

PE-to-P Diffserv: MPLS backbone

P-to-P Diffserv: IP or MPLS backbone

MPLS and Diffserv

Capacity Planning and Monitoring

Capacity Planning and Monitoring

Capacity Planning and Monitoring

Capacity Planning and Monitoring

Capacity Planning and Monitoring

Active SLA Monitoring

IPPM Infrastructure

Deploying Tight-SLA services on an IP Backbone

Traffic Engineering and Diffserv-Aware Traffic Engineering

Traffic Engineering: The Problem

Constraint-Based Routing

MPLS Traffic Engineering

MPLS TE Components in One Slide

The need for TE

Benefit of TE for SLAs

Relationship Between MPLS TE and QoS

Delay / Utilization Trade-Off

Motivation for DS-Aware TE

Diffserv-aware TE (DS-TE)

DS-TE Bandwidth Pools

Protocol extensions for DS-TE

MPLS Guaranteed Bandwidth Framework

How does this help us to offer tight SLAs?

Backbone TE configuration

Backbone TE configuration (1 & 2)

Backbone TE configuration (3)

Backbone TE configuration (3)

Backbone TE configuration (4)

Backbone TE configuration

TE Design Considerations

TE Design Considerations

TE Design Considerations

References

References

References

PPT Slide

Author: joevans

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