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Citrix NetScaler 产品介绍_图文

Citrix NetScaler介绍

NetScaler: 简化应用交付
减少应用downtime 提升5倍性能 阻挡100% 的Web攻击 提高服务器利用率60%

使用NetScaler进行应用交付

B2C

Availability
B2B

Performance

Offload

Security

? World-class L4-L7 ? Caching load balancing ? Compression ? Intelligent service health monitoring

? Connection pooling ? Web 2.0 offload ? SSL processing

? Access Gateway SSL VPN ? Application firewall

P2P

App Expert Admin

NetScaler 提高应用可靠性
Site A
B2C

B2B

Site B
P2P

请求交换-NetScaler负载均衡 请求交换是NetScaler的默认配置
确保数据中心流量分配最合理 应用程序故障转移确保不间断的可用性

Homepage

不平均的用户流量

Finance

服务器负载

Games

Movies

服务器负载

平均的服务器流量
Photos

服务器负载

加速应用交付
CUSTOMERS

SSL
PARTNERS

EMPLOYEES

? Advanced TCP Optimization ? Static and Dynamic Caching ? Hardware Compression

增加用户生产力

减轻服务器负载
CUSTOMERS

SSL
PARTNERS

EMPLOYEES

? ? ? ?

SSL Offload TCP Multiplexing and Buffering Static and Dynamic Caching Hardware Compression

Supports greater user capacity and more apps with minimal investment

Offloading Web 2.0 Servers
? Web/Enterprise 2.0

Millions of Clients
Team Calendars

? 富互联网应用 RIA: 交互性,动态,内容丰富,智能响应
? 扩展企业应用案例
Team Blogs

WIKIS

? 需要会话持续能力
? NetScaler support for streaming ? Proactively "broadcasts" new content ? Minimal back-end server connections

? Service over 2 Million persistent client connections
? Cost savings

? Improves server utilization by 5-10x

Minimized Server Needs

绿色节能NetScaler

One Way
Point Products
Load Balancer/L7 Switch Caching Appliance Application Firewall SSL VPN Global Server Load Balancing Performance Monitoring

NetScaler Way

● ● ● ●

75% lower Power Consumption Less Data Center Space Lower Cooling Completely Integrated 450 Watts

~1800 Watts

Savings $Thousands/Every Year

对XenApp/XenDesktop的增值应用
? Secure Access / ICA-Proxy
? Integrated Access Gateway, Enterprise for highly scalable, secure access

? High Availability
? Load balance XenApp/XenDesktop components (e.g. Web Interface, XML Broker, Licensing Server, Smart Auditor, Password Manager, EdgeSight, etc.) ? Smart monitors and alerts of service health

? Disaster Recovery/Business Continuity
? Global Server Load Balancing (GSLB) provides multi-datacenter HA ? One URL simplifies end-user access

? Integrated Web Interface on MPX and VPX

Web Interface on NetScaler Benefits
? 节省资产和管理投入 ? Fewer Web Interface Servers and SSL Certificates ? Less maintenance and upgrade costs ? Save on power/cooling of Hardware – Green Datacenters ? 提高扩展性、简化管理 ? Management of Web Interface through NetScaler GUI ? Eased network infrastructure and device sprawl ? Higher session performance with over 7,500 concurrent Web Interface sessions ? 提高安全性 ? Plugs holes in DMZ: access to Web Interface in Intranet and callbacks ? Encrypted traffic with AG-EE SSL VPN; Web Interface integrated on NetScaler ? Hardened NetScaler with WI protection features ? Multiple authentication methods available including LDAP, RADIUS, NTLM, and TACACS+

Citrix Confidential

VPX
ACCELERATION AVAILABILITY SECURITY OFFLOAD

XenServer - NetScaler VPX – SR-IOV
? Hardware IO virtualization for networking ? NIC can be carved into virtual instances

Domain0

NetScaler VPX VPX VPX VPX NetScaler NetScaler NetScaler

Drivers

VF DriverDriverDriverDriver VF VF VF

? Bypasses dom0
Xen

? Near native performance

MPX Series Application Delivery Controllers
MPX 5500 MPX 7500 and MPX 9500
MPX 10500/12500/15500
? Highest performance to price for all
throughput levels

? Full concurrent use of all NetScaler

functional modules-including Platinum Edition Mbps to 50 Gbps

? Granular throughput offerings: from 500
? Maximum scalability with multi-core
architectural design and ―pay as you grow option‖

? Lowest ADC total cost of ownership

MPX 11500/13500/14500/16500/18500 MPX 17500/19500/21500

负载均衡
? 可靠性要求高

? 应用类型明确

高性能需求
? 高带宽

? 高吞吐
? 应用复杂

? 2007 Citrix Systems, Inc.—All rights reserved, Citrix Company Confidential

多重应用需求
? GSLB

? Cache重定向
? 应用复杂

Citrix Confidential - Do Not Distribute

Citrix NetScaler
? ? ? ?

#1

In Customer Satisfaction

Customer Satisfaction Survey Surveyed over 450 IT professionals Evaluated all customer engagement stages Respondents had experience with more than one vendor Products in deployment for at least six months

BEST Overall Satisfaction BEST Overall Tech Support BEST Overall Value BEST Technology BEST in 16 of 21 Categories
Source: Enterprise Management Associates (EMA), Customer Satisfaction with Application Delivery Controller Vendors

#1

in 16 of 21 Categories
? ? ? ? ? ? ? ? Overall Satisfaction Overall Tech Support Technology Ease of Use Return on Investment Investment Protection Customer Understanding Sustained Commitment ? ? ? ? ? ? ? ? Overall Value Overall Sales & Procurement Pre-Sales Flexibility Pre-Sales Commitment Pre-Sales Responsiveness Support Responsiveness Support Knowledge Support Effectiveness

BEST in
16 Categories

Source: Enterprise Management Associates (EMA), Customer Satisfaction with Application Delivery Controller Vendors

广域网点对点优化 Branch Repeater

Branch Repeater
Support more users & desktops on existing WAN, Cut WAN Op costs

Print

File

Speed WAN Optimization
Bandwidth Savings

50X 99%

30X 99%

2X 89%

2.5X 97%

6X 97%

Citrix Confidential - Do Not Distribute

WAN Optimization

Branch Staging of Streamed Apps

Branch Caching of Hosted Apps

Adaptive TCP Flow Control

Adaptive Compression

Adaptive Protocol Acceleration

Smart Acceleration

WAN
Branch Repeater Repeater

Adaptive TCP Flow Control
Sensing and responding to latency and packet loss

Without Branch Repeater
Throughput

With Branch Repeater
Throughput

Link Speed

Average Utilization

Average Utilization
Time Slow Start Slow Ramp

Time

Adaptive Compression
Sensing real-time network and traffic conditions

? First pass compression
Access Time

? In L2 cache and memory ? Various algorithms (ZLIB, LZS)

Disk DRAM

? Byte Caching
? In memory or on disk

Cache

? De-Duplication
? Across workflows ? Across applications ? Across users
History Length

Example: CIFS – with Branch Repeater
Open \\dog\bone\blue for John Whomever, password ―Whatever‖

1 ms

252 ms

125 ms 1 ms 125 ms

ICA Acceleration with Branch Repeater
compressed and encrypted ICA data
Citrix Client

Branch Repeater

WAN

Repeater

XenDesktop / XenApp Server

? Automatic disabling of ICA compression on the XenDesktop / XenApp server and client ? Branch Repeater parses ICA traffic inside the virtual channel ? Compression works across users and virtual channels to optimize all traffic ? Optimal performance for print, client drive mapping, and common apps

Quality of Service Traffic Shaping
? All WAN traffic is subject to traffic shaping
? Accelerated connections, non-accelerated connections, non-TCP traffic such as UDP flows, GRE streams, etc.

? The algorithm used is weighted fair queuing
? ? Every connection is assigned a weight based on the appliance’s policies between 1 and 256. A connection with a weight of 100 will get twice the bandwidth as a connection weighted at 50. Weighted priorities are applied during bandwidth contention to both ingress and egress traffic even when the other side of the link is not equipped with QoS.

Optimize for Voice Weight = 3 Weight = 2 Weight = 1

?

? Traffic that is designed as VoIP gets placed in the front of the queue.

Bandwidth Queue

Citrix Repeater / Branch Repeater | The Big Picture
Mobile Users
Tele-workers

Branch Offices

Repeater Plug-in for Citrix Receiver

Data Center
Applications: XenApp XenDesktop File Servers Exchange Email SharePoint ERP/CRM

Branch Repeater or Branch Repeater with Windows Server Repeater

Repeater

Redundant Datacenter or Disaster Recovery Site

Gartner: 2009 Magic Quadrant for Application Delivery Controllers
Citrix Strengths
? Citrix has a reputation for delivering high-performance ADCs with an increasingly rich set of advanced features. ? Citrix has well-developed global channel coverage with a broad set of Citrix products, from server and application virtualization to AP ADCs and WAN optimization. ? Citrix's recent introduction of the NetScaler VPX SoftADC opens up new opportunities for broader deployment of ADCs, bundling ADCs into development environments and especially integrating into Citrix Xen-based virtualization solutions.

? With its traditional software business, Citrix has a good understanding of the applications environment.
? Citrix is in a solid financial position, with an increasing share in the ADC market.

Gartner: Magic Quadrant for Application Delivery Controllers
2007 2009