Rich Gore
Cisco IT@Work Case Study:
Migrating the Cisco WAN to the Cisco 7600
Series Router
Case study text (Public)
Case study text (Internal)
Cisco Information Technology
October 6, 2003
© 2004 Cisco Systems, Inc. All rights reserved.
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Overview
• Challenge—WAN Growth
Traffic growth, new applications drove Cisco® to higher WAN
speeds
• Solution—Cisco 7600 Series Router for high-speed WAN
Cisco 7600 Series supports OC-12, STM-4, with good features,
performance, migration path
• Results—Cisco 7600 Series now backbone of global WAN
10 pairs of Cisco 7600 Series routers deployed globally
WAN availability at all-time high in 2003 (99.999%)
• Next Steps—Cisco 7600 Series supports new WAN
technologies
MPLS VPN, QoS, SSM support added easily
Presentation_ID
© 2003 Cisco Systems, Inc. All rights reserved.
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Challenge—WAN Growth
• WAN utilization was growing rapidly
Average total utilization across global WAN links doubling every 9
months
OC-3 between San Jose and RTP nearing 50% utilization in 2002
• New peer-to-peer applications being added
IP telephony
IP video
E-working/collaboration tools
Avg Total Utilization (Mbps)
• Cisco® 7200 and 7500 series routers don’t handle above OCCAPNet Growth
3, STM-1
Global
EMEA
AP
250
200
150
100
50
0
Q4 00
Presentation_ID
US
300
Q1 01
© 2003 Cisco Systems, Inc. All rights reserved.
Q2 01
Q3 01
Q4 01
Fiscal Year
Q1 02
Q2 02
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Solution—Cisco 7600 Router for OC-12 WAN
• New WAN design required OC-12 connectivity
• Underlying LAN platform is Cisco® Catalyst® 6500
Series switch and router
• Cisco 7600 Series Router is based on Catalyst 6500
Series technology, with support for higher speeds
and higher OC-x and STM-x port connections
• Cisco 7600 Series supported all required interfaces,
with a small footprint, a reliable track record, and a
good migration plan
• Cisco IT selected the Cisco 7600 Series Router to
support the backbone of our global OC-12 / STM-3 /
OC-3 / STM-1 WAN for 2003
Presentation_ID
© 2003 Cisco Systems, Inc. All rights reserved.
4
Cisco WAN Hub Site Architecture
Carrier OC-3 or OC-12
Carrier OC-3 or OC-12
7606
7606
6509
T-1
DS-3
OC-3
OC-12
to SJ
Metro
Ring
6509
7200
7200
Gigabit
Ethernet
Services
< 10
3640
3640s
3640s
7200s
7200s
Cisco® Offices
Presentation_ID
© 2003 Cisco Systems, Inc. All rights reserved.
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Results—Cisco 7600 Series
Is Backbone of Global WAN
• Ten pairs of Cisco® 7600 Series routers now in
global WAN backbone:
Seven pairs in the United States
Three pairs in Europe
• Performance and availability have been excellent
In 2002, Global WAN links had 99.99% availability
In 2003, Global WAN links had 99.999% availability in some
quarters
Presentation_ID
© 2003 Cisco Systems, Inc. All rights reserved.
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Cisco 7600 Series in Global WAN
Amsterdam
London
Kanata
Denver Chicago
MPLS
NYC
Brussels
Tokyo
San Jose
Dallas
Atlanta
RTP
Leased Line (DS-3)
Singapore
ATM
DS-3
OC-3 / STM-1 SONET
OC-12 / STM-4 SONET
Sydney
Cisco 7600 Router
Cisco 7200 / 7500
Presentation_ID
© 2003 Cisco Systems, Inc. All rights reserved.
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Next Steps—Cisco 7600 Series
Supports New Technologies
• WAN migrated to MPLS VPN in EMEA
Cisco® 7600 Series routers deployed in Amsterdam, London, and
Brussels to handle STM-4 and STM-1 circuits into MPLS provider
network
• QoS supported on the WAN
Voice, video, control, normal, and batch data traffic
Cisco 7600 Series handling QoS (CBWFQ) traffic marked at edge
• Source Specific Multicast and IGMPv3 support added to Cisco
7600 Series (and other routers) in WAN
Simplified multicast architecture adds to stability
• Each feature supported in Cisco IOS® Software, required no
hardware upgrade
Presentation_ID
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For additional Cisco IT Case Studies on a variety of
business solutions,
go to Cisco IT @ Work
www.cisco.com/go/ciscoitatwork
This publication describes how Cisco has benefited from the
deployment of its own products. Many factors may have contributed
to the results and benefits described; Cisco does not guarantee
comparable results elsewhere.
CISCO PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.
Some jurisdictions do not allow disclaimer of express or implied
warranties, therefore this disclaimer may not apply to you.
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