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© 1999, Cisco Systems, Inc.
Update on Web Caching Technology Session 1302
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1302 0954_05F9_c2
1
© 1999, Cisco Systems, Inc.
Update on Web Caching Technology Session 1302
1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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1
Service Provider Challenges Internet
• Challenges: WAN bandwidth congestion/costs
Service Provider
Network scalability for new services Maximizing network service quality
PoP
Dial 1302 0954_05F9_c2
ISDN
Leased Line, Broadband 3
© 1999, Cisco Systems, Inc.
Enterprise Challenges
• Challenges: WAN bandwidth congestion/costs
Branch Office
Branch Office
Network scalability for new services Maximizing user productivity
Intranet Data Center
Campus Backbone
Branch Office
Internet 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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2
Solution: Localize Traffic Patterns
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© 1999, Cisco Systems, Inc.
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Solution: Localize Traffic Patterns
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© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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3
Cache Engine Operation Web Server
Internet
Cisco Cache Engine(s)
TCP Port 80 Traffic Redirected
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© 1999, Cisco Systems, Inc.
Cache Engine Operation Web Server
Internet
Cisco Cache Engine(s)
Cache Engine Requests URL
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© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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4
Cache Engine Operation Web Server
Internet
Cisco Cache Engine(s)
Cache Engine Simultaneously Fills URL Request
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© 1999, Cisco Systems, Inc.
Cache Engine Operation Web Server
Internet
Cisco Cache Engine(s)
Cache Engine Fills Subsequent Requests 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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5
Traffic Engineering Issue
• Use existing network intelligence • Optimize traffic flow based on specified parameters
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Start With Your Existing Network…
• Enable Content Routing technology at selected points in your network Web Cache Communication Protocol (WCCP) Standard feature in Cisco IOS
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© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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And Then Add Network Caches
• Network caches = Network extensions Network-integrated Low cost of ownership Scalable
Result: Enables You to Efficiently Cache Everywhere 1302 0954_05F9_c2
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© 1999, Cisco Systems, Inc.
Cisco’s Network Caching Solution
Routers* (Cisco 1600 through 7500), Dial*, uBR72xx*, RSM*
Cache Engine(s)
*Requires Cisco IOS® release 12.0(3+)T, 12.0, 11.1ca, 11.1cc, or 11.2p 1600 and 1700 require Cisco IOS release 12.0(5+)T 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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7
Service Providers: Premium Internet Access Internet
• Benefits: Service Provider
WAN bandwidth optimization Greater network capacity for voice
PoP
Competitive differentiation
Dial 1302 0954_05F9_c2
ISDN
Leased Line, Broadband 15
© 1999, Cisco Systems, Inc.
Enterprises: Accelerated Intranet/Internet Access
• Benefits: WAN bandwidth optimization
Branch Office
Branch Office
Intranet Data Center
Campus Backbone
Greater network capacity for voice Improved user productivity 1302 0954_05F9_c2
Branch Office
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
Internet 16
8
Service Providers/Enterprises: Accelerated Hosting • Benefits: Increase hosting capacity
Data Center
Internet
Accelerate hosting services
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© 1999, Cisco Systems, Inc.
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Next Generation Cache Engines
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© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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9
Cisco Cache Engine 500 Series
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© 1999, Cisco Systems, Inc.
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Cisco Cache Engine 505 • For enterprise branch offices with T1/E1 links • 500 concurrent connections • Custom hardware One RU (One to two) 9-GB Ultra2 SCSI disk drives Two 10BaseT/100BaseTX ports
• Base list price: USD $4,995 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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Cisco Cache Engine 550 • For service provider PoPs and enterprise sites with WAN uplink bandwidth up to 11 Mbps • 3,000 concurrent connections • Custom hardware One RU 18 GB storage (two 9 GB Ultra2 SCSI disk drives) Two 10BaseT/100BaseTX ports External SCSI LVD port for Cisco external storage (Dec ‘99)
• Base list price: USD $11,995 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
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Cisco Cache Engine 550-DS3 • For service provider PoPs and enterprise sites with WAN uplink bandwidth up to DS3 rates • 12,000 concurrent connections • Bundle: Four CE 550s + 2912 XL switch • Custom hardware Five RU 72 GB storage (eight 9 GB Ultra2 SCSI disk drives) Eight 10BaseT/100BaseTX ports Four external SCSI LVD ports for Cisco external storage (Dec ‘99)
• Base list price: USD $45,000 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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11
Network Integration
The Industry’s Only Network-Integrated Caching Solutions
Networking Hardware Design
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Cisco IOS Management
Adapt to the Network
23
© 1999, Cisco Systems, Inc.
Transparent Caching Web Server
No changes to network architecture, browsers, or servers
Internet
Cisco Cache Engine(s)
1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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12
Fault Tolerance Automatic Redistribution Buckets 86-128 Buckets 1-85 Buckets 86-170
X
A
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Buckets 129-170 Buckets 171-255
B
C
25
© 1999, Cisco Systems, Inc.
Fault Tolerance Web Server
Internet
X 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
Automatic WCCP Shutdown
26
13
Fault Tolerance Internet Web Server MHSRP Router Pair
X Cache Engine Cluster
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© 1999, Cisco Systems, Inc.
Fault Prevention Origin Web Server
Internet
Request Refused
Client Requests URL
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Cache Engine Cluster (Overloaded)
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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14
Fault Prevention Origin Web Server
Internet
Cache Engine Cluster (Overloaded)
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© 1999, Cisco Systems, Inc.
Fault Prevention Origin Web Server
Internet
Client Requests URL
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Cache Engine Cluster
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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15
Fault Prevention Origin Web Server
Internet
IP Authentication Failure
Auto Retry Message
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Build a Bypass Pair
Cache Engine Cluster
31
© 1999, Cisco Systems, Inc.
Fault Prevention Origin Web Server
Internet
Request Refused
Browser Retries
1302 0954_05F9_c2
Cache Engine Cluster
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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Fault Prevention Origin Web Server
Internet Successful IP Authentication
Cache Engine Cluster
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© 1999, Cisco Systems, Inc.
Scalable Clustering
• Up to 32 Cache Engines in a single cluster • Linear scalability • Incremental scalability • High availability, redundancy 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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17
Scalable Clustering Data Center
Internet WCCP Router
Cache Engine Cluster 1302 0954_05F9_c2
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© 1999, Cisco Systems, Inc.
Ease of Use • Cisco IOS CLI • SNMP, Cache MIB • Netboot, TFTP, Flash memory support • Logging (syslog and transaction logs) • Telnet (username/password)
Plus: Cache Engine Web GUI 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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18
Enterprise Deployment Central Site ≤ DS-3 WCCP
Cache Engine 550-DS3*
s bp M 11 ≤
≤ T1 /E1
Internet
Cache Engine 550*
WCCP
Hub Site Cache Engine 505
WCCP
Branch Office
* Cache Engine * 550-DS3 at a site if the WAN uplink is a DS-3 Cache Engine 550 at a site if the WAN uplink less than 11 Mbps 1302 0954_05F9_c2
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© 1999, Cisco Systems, Inc.
Service Provider Deployment Internet
≤ DS-3 Cache Engine 550-DS3*
≤D S-
PoP 2
3*
PoP 1
≤D S3*
WCCP
CE 55 WCCP
WCCP
Cache Engine 550-DS3*
Cache Engine 550-DS3*
* Cache Engine 550 at a PoP if the WAN uplink is less than 11 Mbps 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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Service Provider PoP Deployment ≤≤ DS-3
≤≤ DS-3
MHSRP, WCCP
Cache Engine 550-DS3*
Analog/ISDN Access
Cache Engine 550-DS3*
Frame Relay/ATM/ Leased Line/Broadband Access
* Cache Engine 550 if WAN links are less than 11 Mbps 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
39
Cache Engine 500 Series Benefits
• Optimized WAN bandwidth usage More capacity for voice traffic
• Greater network scalability • Higher network service quality and content availability
1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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20
Cisco’s Network Caching Solution
Routers* (Cisco 1600 through 7500), Dial*, uBR72xx*, RSM*
Cache Engine(s)
*Requires Cisco IOS® release 12.0(3+)T, 12.0, 11.1ca, 11.1cc, or 11.2p 1600 and 1700 require Cisco IOS release 12.0(5+)T 1302 0954_05F9_c2
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© 1999, Cisco Systems, Inc.
Cisco Cache Engine 500 Series The Industry’s Only Network-Integrated Caching Solutions • Designed like networking products • Managed like networking products • Adapts to the network
Result: Enables you to efficiently Cache Everywhere 1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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21
Please Complete Your Evaluation Form Session 1302
1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
43
1302 0954_05F9_c2
© 1999, Cisco Systems, Inc.
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Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA. 0954_05F9_c2.scr
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