Cisco IOS IP Service Level Agreements
An Overview
Assuring the Delivery of IP Services & Applications
Internet Technologies Division
November 2004
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
1
Cisco IOS IP Service Level Agreements
Presentation Agenda
• Introduction
• Cisco IOS IP SLAs Overview
Business Drivers
Benefits
• Cisco IOS IP Service Level Agreements (SLAs) for
VoIP
• Cisco IOS IP SLAs for IP/MPLS
• Partners & Roadmap
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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VPNs with IOS-based Managed Services
Security
Routing
With Cisco IOS Firewall &
Intrusion Prevention System
With Cisco Enhanced Interior
Gateway Routing Protocol
Management
With Cisco IP SLAs
Corporate Intranet
Local or
Direct
Dial ISP
Remote Users/ Telecommuters
Provider
Networks
SP
Converged IP/MPLS
Network
PE
MPLS to
IPsec/PE
VPNHead
B Office
Internet
PE
Cable/DSL/ISDN ISP
Business Partner
Branch Office
Remote Access
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
Corporate Extranet
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SLAs for IP/MPLS Networks
• Cisco IOS IP SLAs’ operations measure per VPN
• Allows measurements from a PE to CE routers
SP Converged IP/MPLS Network
Measure
Either CE–PE
or CE–CE
Links
Cisco
Exclusive
P Router
CRS-1
Enterprise
Site 1
Measure Either CE–
PE or CE–CE or
PE-PE Links
Enterprise
Site 2
Service Provider: Improved and flexible SLA management
Enterprises:
Access to comprehensive SLA reports
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
© 2003, Cisco Systems, Inc. All rights reserved.
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Cisco IOS IP Service Level Agreement:
A New Direction
• Cisco solution that assures IP service levels, proactively verifies
network operation, and accurately measures network performance
Comprehensive hardware support
Committed Cisco partner support
Cisco IOS Software, the world’s leading network infrastructure software
Enterprise and Small Medium Business
Understand Network
Performance &
Ease Deployment
Access
Service Providers
Verify Service Levels
Verify Outsourced SLAs
Enterprise Backbone
Enterprise
Premise Edge
Measure and provide
SLAs
Service Provider
Aggregation Edge
Service Provider Core
Cisco IOS Software
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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Cisco IOS IP SLAs
Understanding IP Service Levels
• Optimize IP business applications and services
Voice over IP, Video, and VPN
• Reduce total cost of ownership
• End to end service level measurements
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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The Need for IP-Based Service Levels
PROBLEM
40% of companies delay launching new
applications due to network performance
concerns2
RESULT
Reduced business
productivity
59% of companies simply add bandwidth to ensure
application efficiency2
Increased network costs
55% of companies only identify some of their
network traffic2
Reduced understanding of
network behavior
Cost of application downtime and degradation is
13K per minute for an ERP application3
Lowered network
performance can be costly
2003 Infonetics Research Study “Cost of Enterprise Downtime”
www.infonetics.com/services/green.shtml?2004/service.provider.and.user.plans.shtml
2 2003 Network World Application Performance Market Study
www.nwfusion.com
3 Forrester Research
www.forrester.com
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Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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Cisco IOS IP SLAs Benefits
OPTIMIZED APPLICATIONS
& SERVICES
• Performance visibility
• Prove service levels
• Enhance Customer satisfaction
• Enhance acceptance of businesscritical services
REDUCED TOTAL COST OF
OWNERSHIP AND OpEx
• Reduce deployment time
• Lower mean time to restore and
downtime
• Proactive identification of issues
enforces higher reliability
Continuous
Predictable Reliable
Measurements and Metrics
Automated Intelligence
Proactive
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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Cisco IOS IP SLAs Life Cycle
Baseline network
performance
Verify network readiness
for new services with
Cisco IOS IP SLA
capabilities.
2
1
Quantify results
• Reduce deployment time
• Prove service and
application differentiation
• Verify service levels
• Reduce network down
time
• Manage demand for the
network
Cisco IOS IP SLAs,
Technical, 11/04
Understand network
performance baseline
Confidence to deploy
new IP services
and applications
Assure
application
and service
deployment
4
© 2004 Cisco Systems, Inc. All rights reserved.
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Fine tune and
optimize
Ongoing
measurements to
understand behavior
with proactive
notification
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Cisco IOS IP SLAs Advantages
VPN
• SLAs are
essential to VPN
services
• Quality of
Service (QoS)based
measurements
• Revenue for
differentiated
services
• Brings IP service
customer
confidence
VoIP
• Demonstrate
how VoIP is
working
• Deploy with
confidence
• Enhanced
customer
satisfaction
• Metrics useful
for trouble
shooting & and
reducing down
time
Business
Applications
• Assure delivery
with network
performance
• Meet business
objectives with
guaranteed
service levels
• Assure network
quality of
service
• Reduce
downtime
Key Services Benefit from Cisco IOS IP SLA
I
Cisco IOS IP SLAs,
Technical, 11/04
II
© 2004 Cisco Systems, Inc. All rights reserved.
III
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Comprehensive Hardware Support
Core
Enterprise & Aggregation/Edge
Cisco IOS Software Release 12.2S
Cisco 7200
Series
Cisco Catalyst
Cisco 10000 6500; Cisco
Series
7600 Series
Cisco 7300 Cisco 4500
Series
Series
Cisco 12000
Series
Access
Cisco IOS Software Releases 12.3T and 12.4
Cisco 800 Cisco 1700
Series
Series
Cisco IOS IP SLAs,
Technical, 11/04
Cisco 2600
Series
© 2004 Cisco Systems, Inc. All rights reserved.
Cisco 7200 &
Cisco 3700 7300 Series
Series
Cisco 2900,
3550, &
3750 Series
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Cisco IOS IP SLAs Uses and Metrics
*DATA
TRAFFIC
REQUIREMENT
• Minimize
Delay, Packet
Loss
• Verify QoS
IP SLA MEASURMENT
•
•
•
•
Jitter
Packet loss
Latency
per QoS
*VoIP
• Minimize
Delay, Packet
Loss, Jitter
•
•
•
•
*SERVICE LEVEL
AGREEMENT
• Measure Delay,
Packet Loss,
Jitter
• One-way
Jitter
Packet loss
Latency
MOS Voice
Quality Score
• Jitter
• Packet loss
• Latency
• One-way
• Enhanced
accuracy
• NTP
*AVAILABILITY
Connectivity
testing
• Connectivity
tests to IP
devices
**STREAMING
VIDEO
• Minimize
Delay, Packet
Loss
• Jitter
• Packet loss
• Latency
* Currently available
**Limited availability in 9/04; complete in CY’05
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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CISCO IOS IP SLAs FOR VoIP
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
13
IP SLA for Voice over IP
• VoIP may be difficult to deploy when the network
behavior is not well understood
Cisco IOS IP SLAs will verify network readiness and QoS
Measure critical performance for VoIP deployment
Real time warning of network performance degradation
IP SLA is universally available across Cisco IOS Software
routers
Standard jitter,
Packet loss,
latency
measurements
Cisco IOS IP SLAs,
Technical, 11/04
Voice quality
score
measurements
© 2004 Cisco Systems, Inc. All rights reserved.
Call setup
measurements
Hardware-based
VoIP
measurements
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Cisco IOS IP SLAs for VoIP
• Voice quality measurements between any two network points on
any path
• Continuous, reliable, predictable performance monitoring
• Cisco IOS IP SLAs thresholds and hop-by-hop details isolate
problems
IP SLA Network to Server Measurements
IP SLA WAN Measurements
A
A
PSTN
IP
WAN
Branch
Headquarters
IP SLA End to End Measurements
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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Cisco IOS IP SLAs VoIP Roadmap
• November 2003, Release 12.3(4)T
VoIP Codec Simulations using Cisco IOS IP SLA
active monitoring
Voice Quality Scoring
• March 2003, Release 12.3(7)T
New Threshold traps, one-way packet loss, jitter, latency and MOS
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
16
CISCO IOS IP SLAs for IP/MPLS
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
17
Cisco IOS IP SLAs Example
United States, Service Provider
IP CLASS OF
SERVICE
ONE-WAY
DELAY
THROUGHPUT
JITTER
QoS
BANDWIDTH
PER AAPP
Priority Voice
Traffic
< 80 ms
Packet loss
< 5% less
< 35 ms
Max 75%
Real-Time Traffic
– Video
< 80 ms
Packet loss
< 3%
60%
Priority Data
Traffic
< 100 ms
Packet loss
< 2%
30%
Best Effort
Traffic
No target
No target
No target
10%
• Jitter: telephony and multi-media conferencing
• Packet Loss: telephony, multi-media conferencing, streaming media,
low latency data
• Delay: telephony, multi-media conferencing, streaming media
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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VPN SLAs and Performance Measurement
• Cisco IOS Software is an
MPLS leader
• How can SLAs be measured
with a specific VPN?
Cisco IOS IP SLA operations
are vrf-aware and measure
an SLA per VPN
Allows measurements from
a PE or multi-vrf CE router
10.10.10.1
10.11.10.1
(PE)
10.12.10.1
CEs with
VRFs Red,
Blue and
Yellow.
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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CISCO IOS IP SLAs PARTNERS
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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Cisco IOS IP SLAs Partners
Cisco Network Management Solution
Cisco IP Solution Center
MPLS VPN and SLA Monitoring
Internetworking Performance Monitor
Enterprise performance measurements
THIRD PARTY PRODUCTS
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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References
• Cisco IOS IP SLAs
www.cisco.com/go/ipsla
Cisco IOS IP SLAs,
Technical, 11/04
© 2004 Cisco Systems, Inc. All rights reserved.
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Cisco IOS IP SLA,
SLAs,Technical,
Technical, 11/04
9/04
© 2004 Cisco Systems, Inc. All rights reserved.
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