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
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