Transcript CoxCONNECT Case Study: Universal Access supported by a fully redundant infrastructure spanning multiple data centers Keith Hubbard Sr.

CoxCONNECT Case Study:
Universal Access supported by a fully
redundant infrastructure spanning
multiple data centers
Keith Hubbard
Sr. Server Administrator
Chuck Coffman
Sr. Server Administrator
1 | © 2006 Citrix Systems, Inc.—All rights reserved.
One Size Does Not Fit All
What’s Best?
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Who Is Cox Communications ?
• Third largest cable company in America with 6.7 million
customers and 23,000 employees nationwide
• Full service telecommunication provider
• Analog and digital cable
• Local and long distance telephone and voice over IP
• High speed internet
• Annual revenues exceeding $10 Billion with interests in
newspapers, television, radio, and automobile auctions
• Honored by J.D. Powers and Assoc. two consecutive
years for outstanding customer service
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Cox Communications - Drivers
• Create faster, more reliable connections than traditional
laptop/VPN solutions
• Create a “work from home” call center solution
• Improve security
• Protect Intellectual property
• Protect the platform
• Improve overall customer experience
• Create an “end to end”, centrally managed application
delivery solution
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Cox Communications - Solutions
• Leverage in house Metro-Ethernet product to create
physically redundant hosting sites
• Two Citrix NetScaler implementations
• load balance Citrix sites
• Compress and load balance Internal web applications
• Citrix Presentation Server 4 to publish applications
• Virtuozzo to virtualize call center switch software
• Citrix Access Gateway with Advanced Access Control
• Increase security through Endpoint Analysis and Access Rights
Control
• Extended Web Interface capabilities with Clientless Access
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Citrix NetScaler for Web Apps
IIS Web App 1
Load Balanced
Intranet
Active/Passive
• Implemented for internal IIS applications
• Load Balanced applications
• TCP optimization
• Web Compression
• Dynamic Caching
Primary “Active” Netscaler
• SSL Encryption
SQL 1
SQL 2
SQL 3
Secondary “Passive” Netscaler
IIS Web App 2
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SQL 4
NetScaler & Presentation Server
Enhanced Site Redundancy and Load Balancing
`
Citrix
Presentation
Server 4.0
Server Farm
Internet
END USER
END POINT SCAN
AAC/WEB
INTERFACE #1
CITRIX ACCESS
GATEWAY #1
Data Center 1
NETSCALER #1
Active/Passive
Failover
Active/Passive
Failover
LOAD BALANCE
LOAD BALANCE
CITRIX ACCESS
GATEWAY #2
Data Center 2
NETSCALER #2
AAC/WEB
INTERFACE #1
Improves security and fault tolerance
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Cox Communication - Benefits
• “Work from Home” program
• Complete call center functionality through Citrix
• Reduce in house per cubicle cost by $16000
• Improved morale and efficiency of call center representatives
• Streamlined application access
• Traditional published applications
• Clientless access to web applications (does not require presentation
server license)
• Improved security
• Endpoint analysis ensures users access from a clean system
• Results with NetScaler
• Citrix infrastructure redundancy
• 70% improvement to web application access and speed
• More robust load balancing than Microsoft NLB!
8 | © 2006 Citrix Systems, Inc.—All rights reserved.
HTTPS://INTERNET URL
(PORT 443 ONLY)
Data Center 1
Data Center 2
FIREWALL
ACTIVE/PASSIVE FAILOVER MODE
DMZ
LAN
FIREWALL
DMZ
LAN
192.XXX.XXX.X
VIP FOR CITRIX ACCESS
GATEWAY
NETSCALER 1
ACTIVE/PASSIVE FAILOVER MODE
NETSCALER 2
LAN
LAN
HP
ProLiant
DL360
1
UID
CITRIX ACCESS
GATEWAY 1
DEER VALLEY
2
G5
HP
ProLiant
DL360
LOAD BALANCED VIP FOR ACCESS GATEWAY
192.xxx.xx.x
LAN
ADVANCED ACCESS CONTROL
SERVER 1
1
UID
2
G5
CITRIX ACCESS
GATEWAY 2
MSC
ADVANCED ACCESS CONTROL
SERVER 2
LOAD BALANCED VIP FOR WEB INTERFACE
WEB INTERFACE SERVER
1
192.xxx.xx.x
PRESENTATION SERVERS
PRESENTATION SERVERS
CITRIX PRESENTATION SERVER FARM
LOAD BALANCING
PUBLISHED APPLICATIONS AND DESKTOPS
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WEB INTERFACE SERVER
2
Q&A
Keith Hubbard
Chuck Coffman
Sr. Server Administrator
Cox Communications
Sr. Server Administrator
Cox Communications
Desktop
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