1. Customer Presentation
Cisco IP Solution Center 4.0 TRAFFIC ENGINEERING MANAGEMENT Executive Overview
Customer Presentation

2. Agenda Introduction – Intelligent Information Network
Traffic Engineering Management
ISC 4.0 TEM Feature Overview
Bandwidth Protection
Primary Tunnel management
Summary Value Propositions
Acronyms:
ISC – IP Solution Center
TEM – Traffic Engineering Management

3. The Intelligent Information Network
Individual Products
Technology Solutions
Integrated
Systems
Business Solutions
Intelligent Information Network (IIN)
Cisco’s 3-5 year vision for the evolution of networking from connectivity to intelligent systems
Goals:
Accelerate integration of innovation into the network
Embed intelligence to create a unified networking system

4. Intelligent Network Benefits
Secure infrastructure
Self-defending network mitigates threats, both known and unknown
Faster deployment of service and applications
Integrated, modular systems and management reduce custom integration
Granular policy controls couple network with business processes and services
Reduced complexity and lower TCO
New capabilities and technologies are simpler to integrate
Integrated systems and management reduce OpEx and systems integration
Acronyms:
OpEx – Operational Expenses
TCO – Total Cost of Ownership

5. IP Traffic Engineering in IIN
Availability/ Resiliency
Guarantees bandwidth and fast restoration under failure conditions.
Delivery Optimization
Optimizes MPLS core management.
Guarantees delivery of Service Level Agreement traffic and bandwidth protection.
Acronyms:
MPLS - Multiprotocol Label Switching
IOS - Cisco Internet Operating System
Enhanced Manageability
IP Solution Center Traffic Engineering Management a centralized planning and provisioning tool which leverages IOS MPLS Traffic Engineering.

6. Cisco Traffic Engineering Management
Presentation_ID
© 2004, Cisco Systems, Inc. All rights reserved. 6 6 6

7. Key Benefits of Traffic Engineering (TE)
Delivers the service characteristics of circuit-switched networks -- over packet-based networks
i.e. Converged Networking
Provides fast bandwidth restoration -- not just connectivity restoration
Problems solved
Under/Over-utilized backbones (lack of traffic optimization tools),
Where and when to upgrade core networks
Unnecessary network upgrade costs.
Inability to deliver SLA guarantees for the services
Acronyms:
SLA – Service Level Agreement

8. Network Convergence
Different types of traffic have been carried over different types of networks with different performance characteristics
Delay/jitter sensitive traffic (voice, video, etc) over TDM/ATM
Internet and VPN Data over Packet Switched Networks (IP)
The goal for network operators is to have a single network delivering both types of traffic
Offering traditional ATM/FR/TDM services over IP at lower cost
Opening new services to IP Service Providers, including voice, video distribution (studio-to-studio) and video-conferencing
Acronyms:
ATM - Asynchronous Transfer Mode
FR – Frame Relay
TDM - Time-division multiplexing
VPN - Virtual Private Network

9. MPLS Traffic Engineering is the Key Technology…
… for delivering ATM, Frame Relay and similar services over converged IP networks
… for fast restoration and bandwidth protection
… for Voice over IP
It enables:
Predictable network performance
Matching of traffic flows to QoS resources
Fast restoration in the event of element failure
Delivery of hard bandwidth guarantees
Acronyms:
QoS – Quality of Service

10. …but MPLS-TE needs management tools
MPLS-TE offers a way of routing traffic according to a set of requirements or constraints
ISC:TEM calculates tunnels within constraints including bandwidth, DS-TE pool, affinity, delay and protection level
Once a path is found to meet these constraints it is signalled using RSVP-TE
ISC:TEM automatically audits and configures the tunnels on the network (as control plane reservations)
MPLS-TE tunnels can be used to carry primary traffic demands, or for back-up (bandwidth protection)
Tunnels can be managed, optimized and deployed using ISC:TEM
Acronyms:
DS-TE - Diff-Serv-aware Traffic Engineering
MPLS-TE - MPLS traffic engineering
RSVP-TE – Resource Reservation Protocol with traffic engineering

11. Cisco IP Solution Center

12. IP Solution Center: Traffic Engineering Management (ISC:TEM)
ISC:TEM offers an easy-to-use management interface
TE topology display
Fast Re-Route and Primary Tunnel management
Carrier-class tunnel provisioning
Leverages Cisco IOS features
DS-TE (Bandwidth Pools),
Fast Re-Route (Bypass Tunnels with Load balancing)
World-class optimization algorithms (Cisco bought the company that developed them)
ISC:TEM is the only integrated MPLS-TE management solution available today
Provides planning and visualization support AND automatic TE tunnel provisioning

13. ISC 4.0 TEM Feature Overview
Presentation_ID
© 2004, Cisco Systems, Inc. All rights reserved. 13 13 13

14. ISC 4.0 TEM - Key Operational Features
Discovery and Audit
TE enabled devices and tunnels
Visualization and tunnel audit
Bandwidth Protection during element failure
FRR tunnel audit and calculation
Primary tunnel placement & repair
Global optimization of network utilization
Deployment and tunnel activation

15. Cisco MPLS Bandwidth Protection
Presentation_ID
© 2004, Cisco Systems, Inc. All rights reserved. 15 15 15

16. What is Bandwidth Protection?
AToM requires service guarantees
Failures in single network elements should not cause high value services to fall below specified requirements
Bandwidth
Delay
A new solution to an old problem
Using MPLS features and ISC:TEM we have a new cost-effective method to provide a solution
Alternative to SONET/SDH APS
Guaranteed bandwidth
Acronyms
APS - Automatic protection switching
SDH - Synchronous Digital Hierarchy
SONET – Synchronous Optical Network

17. Guaranteed Bandwidth
Contracted bandwidth must be available even during network failure
Delay, jitter and restoration time may need to be guaranteed
MPLS Fast Reroute (FRR) has been coupled with over-provisioned networks to attempt to replicate these guarantees
This delivers connectivity, but is bandwidth inefficient, and does not offer “hard” bandwidth guarantees
Cisco MPLS Bandwidth Protection using ISC:TEM offers SONET-like protection through optimum computation and provisioning of FRR
Results show that the utilization can be significantly improved while still guaranteeing bandwidth in failure conditions
In normal conditions bandwidth is available for “best efforts” traffic

18. Independent Failure Assumption
Bandwidth is guaranteed against any single element failure
Link, node or SRLG
Assumes that the failure is temporary
Primary paths will be restored within seconds/minutes
For long-term outages network will be re-optimised
Independent Failure Assumption allows for efficient use of backup bandwidth
Bandwidth required for one failure can be reused for another failure
Requires that bandwidth is accounted for off-line
Backup tunnels are signalled with zero bandwidth, so bandwidth can be reused.
Acronyms:
SRLG - Shared Risk Link Group

19. RoI Case Study: Node Protection
Nodes Protected – ISC-TEM vs. CSPF 0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100% 22 38 54
118
236
Five SP Networks: Number of Nodes
% Nodes Protected
ISC-TEM
CSPF-Based
Acronyms:
CSPF - Constrained Shortest Path First algorithm
RoI – Return on Investment
ISC-TEM protects more nodes in every network studied, (and is also more efficient in link protection – not shown)

20. Primary Tunnel Management
Presentation_ID
© 2004, Cisco Systems, Inc. All rights reserved. 20 20 20

21. ISC:TEM Primary Tunnel Management
Key features:
Tunnel placement with user-specified constraints
Constraints supported in IOS (bandwith pool, affinity)
Delay
Protection level (none, best-effort, Links/SRLGs, or Nodes/Links/SRLGs)
Add/modify tunnel requirements, create new tunnels with minimum disruption of existing tunnels
Network grooming – re-optimize the tunnel layout globally
Key benefits:
Accommodate more traffic onto a given network
Delay network upgrades
Traffic management and control

22. Network Grooming
Global re-optimization of primary tunnel placements to improve network utilization
Minimize worst case link utilization
Minimize TE metric cost
All constraints must be satisfied
Constraints supported in IOS (BW pool, affinity)
Delay
Protection level (none, best-effort, Links&SRLGs, or Nodes&Links&SRLGs)

23. Network Grooming: RoI Case Study
ISC-TEM was used to optimize the placement of real traffic demands on the actual networks of several major carriers.
Case Study details (see next slide):
International tier 1 network (175 nodes, 380 links)
Increase demand by 10% increments to 200%
Link upgrade policy: double b/w when 70% utilized
Fewer link upgrades are needed when placing increasing traffic demands, compared with IGP routing or with conventional traffic engineering
Delay or reduce bandwidth upgrade costs by 60% - 90%
Acronyms:
IGP - Interior Gateway Protocol

24. Results: Link Upgrades for Demand Growth
Link Upgrade Requirements (# of links) 10 20 30 40 50 60 70 80 0%
20%
40%
60%
80%
100%
120%
140%
160%
180%
200%
Demand Matrix Growth
ISC:TEM
CSPF Offline
Customer Metrics
Default Metrics
Bandwidth Upgrade Requirements (Gb/s)
100
200
300
400
500
600
700 0%
20%
40%
60%
80%
100%
120%
140%
160%
180%
200%
Demand Matrix Growth
B/W Upgrades (Gbps)
ISC:TEM
CSPF Offline
Customer Metrics
Default Metrics
#Link Upgrades Required
100% Demand Growth
200% Demand Growth
Required Network Upgrades
for each algorithm:
# of Link s
B/W Gbps
# of Links
ISC:TEM 1 2 12 75
CSPF Offline, Customer Metrics 7 55 32
219
CSPF Offline, Default Metrics 16
134 70
586

25. Summary: Value Propositions
Presentation_ID
© 2004, Cisco Systems, Inc. All rights reserved. 25 25 25

26. Why bother with Traffic Engineering?
TE enables Service Providers to:
Speed up time to market for new services on converged networks
Reduce investment in over-provisioning
Increase throughput and utilization of existing network
Guarantee bandwidth and fast restoration under failure conditions
Postpone Capex
Acronyms:
Capex - Capital Expenditures

27. ISC:TEM Summary
ISC:TEM leverages MPLS TE to enable network convergence
Predictability in normal and failure conditions
Traffic flows matched to QoS resources
Guaranteed bandwidth with fast restoration
ISC:TEM offers advanced MPLS-TE management functionality, including network optimization and bandwidth protection
Advanced algorithms used in ISC:TEM outperform the alternative options and enable:
Efficient and QoS-aware utilization of network infrastructure to support premium SLAs
Deferment of expensive link upgrades as traffic grows
Bandwidth guarantees during failure without the expense of SONET protection

28. Presentation_ID
© 2004, Cisco Systems, Inc. All rights reserved. 28 28 28